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Index by author

November 01, 2019; Volume 40,Issue 11
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z

A

  1. Aboian, M.S.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  2. Adalsteinsson, E.

    1. EDITOR'S CHOICEPediatrics
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  3. Adams, C.

    1. Patient Safety
      You have access
      Dose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal Model
      F.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. Zhang
      American Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
  4. Aftab, M.

    1. Editorial
      You have access
      Time to Discontinue Use of the Term “Hemorrhagic Stroke”
      M. Aftab and M. Salman
      American Journal of Neuroradiology November 2019, 40 (11) 1893; DOI: https://doi.org/10.3174/ajnr.A6240
  5. Ahmed, S.

    1. Head & Neck
      You have access
      Diagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal Masses
      T.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-Monroe
      American Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
  6. Aoki, S.

    1. Adult Brain
      Open Access
      Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition
      S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
      American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
  7. Arat, A.

    1. Interventional
      You have access
      Placement of a Stent within a Flow Diverter Improves Aneurysm Occlusion Rates
      O. Ocal, A. Peker, S. Balci and A. Arat
      American Journal of Neuroradiology November 2019, 40 (11) 1932-1938; DOI: https://doi.org/10.3174/ajnr.A6237
  8. Asemani, D.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Prolonged Microgravity Affects Human Brain Structure and Function
      D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
      American Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249

      Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.

  9. Autti, T.

    1. Pediatrics
      You have access
      Susceptibility-Weighted Imaging Findings in Aspartylglucosaminuria
      A. Tokola, M. Laine, R. Tikkanen and T. Autti
      American Journal of Neuroradiology November 2019, 40 (11) 1850-1854; DOI: https://doi.org/10.3174/ajnr.A6288

B

  1. Balci, S.

    1. Interventional
      You have access
      Placement of a Stent within a Flow Diverter Improves Aneurysm Occlusion Rates
      O. Ocal, A. Peker, S. Balci and A. Arat
      American Journal of Neuroradiology November 2019, 40 (11) 1932-1938; DOI: https://doi.org/10.3174/ajnr.A6237
  2. Barker, P.B.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  3. Barron, B.J.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  4. Ben-Shlomo, N.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
  5. Benson, J.C.

    1. Pediatrics
      You have access
      Mixed Solid and Cystic Mass in an Infant
      J.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. Morris
      American Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
  6. Berrington, A.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  7. Bhatt, P.R.

    1. Pediatrics
      You have access
      Age-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR Imaging
      T.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. Mirsky
      American Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
  8. Billups, C.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
  9. Bireley, J.D.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  10. Bison, B.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  11. Blair, L.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  12. Blakeley, J.O.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  13. Bloomberg, J.J.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Prolonged Microgravity Affects Human Brain Structure and Function
      D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
      American Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249

      Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.

  14. Boddaert, N.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

  15. Bolar, D.S.

    1. EDITOR'S CHOICEPediatrics
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  16. Bonaldi, G.

    1. FELLOWS' JOURNAL CLUBSpine
      You have access
      Armed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst Fractures
      A. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. Cianfoni
      American Journal of Neuroradiology November 2019, 40 (11) 1965-1972; DOI: https://doi.org/10.3174/ajnr.A6285

      This study assesses the results of armed kyphoplasty using vertebral body stents or the SpineJack in traumatic, osteoporotic, and neoplastic burst fractures with respect to vertebral body height restoration and correction of posterior wall retropulsion. The authors performed a retrospective assessment of 53 burst fractures with posterior wall retropulsion and no neurologic deficit in 51 consecutive patients treated with armed kyphoplasty. Posterior wall retropulsion and vertebral body height were measured on pre- and postprocedural CT. Armed kyphoplasty was performed as a stand-alone treatment in 43 patients, combined with posterior instrumentation in 8 and laminectomy in 4. Pre-armed kyphoplasty and post-armed kyphoplasty mean posterior wall retropulsion was 5.8 and 4.5 mm, respectively, and mean vertebral body height was 10.8 and 16.7 mm, respectively. They conclude that in the treatment of burst fractures with posterior wall retropulsion and no neurologic deficit, armed kyphoplastyyields fracture reduction, internal fixation, and indirect central canal decompression.

  17. Boulouis, G.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

  18. Bouzerar, R.

    1. Interventional
      You have access
      Transitioning to Transradial Access for Cerebral Aneurysm Embolization
      C. Chivot, R. Bouzerar and T. Yzet
      American Journal of Neuroradiology November 2019, 40 (11) 1947-1953; DOI: https://doi.org/10.3174/ajnr.A6234
  19. Brabetz, S.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
  20. Braunstein, S.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  21. Brown, T.R.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Prolonged Microgravity Affects Human Brain Structure and Function
      D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
      American Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249

      Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.

  22. Brunelle, F.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

C

  1. Campeau, N.G.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  2. Capper, D.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
  3. Carter, R.E.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  4. Cervenka, M.C.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  5. Cha, S.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  6. Chavez, L.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
  7. Chen, M.M.

    1. Head & Neck
      You have access
      Diagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal Masses
      T.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-Monroe
      American Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
  8. Chen, X.-J.

    1. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
  9. Chivot, C.

    1. Interventional
      You have access
      Transitioning to Transradial Access for Cerebral Aneurysm Embolization
      C. Chivot, R. Bouzerar and T. Yzet
      American Journal of Neuroradiology November 2019, 40 (11) 1947-1953; DOI: https://doi.org/10.3174/ajnr.A6234
  10. Cho, D.Y.

    1. Interventional
      You have access
      The Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment Modalities
      D.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. Shin
      American Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
  11. Choi, J.H.

    1. Interventional
      You have access
      The Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment Modalities
      D.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. Shin
      American Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
  12. Cianfoni, A.

    1. FELLOWS' JOURNAL CLUBSpine
      You have access
      Armed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst Fractures
      A. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. Cianfoni
      American Journal of Neuroradiology November 2019, 40 (11) 1965-1972; DOI: https://doi.org/10.3174/ajnr.A6285

      This study assesses the results of armed kyphoplasty using vertebral body stents or the SpineJack in traumatic, osteoporotic, and neoplastic burst fractures with respect to vertebral body height restoration and correction of posterior wall retropulsion. The authors performed a retrospective assessment of 53 burst fractures with posterior wall retropulsion and no neurologic deficit in 51 consecutive patients treated with armed kyphoplasty. Posterior wall retropulsion and vertebral body height were measured on pre- and postprocedural CT. Armed kyphoplasty was performed as a stand-alone treatment in 43 patients, combined with posterior instrumentation in 8 and laminectomy in 4. Pre-armed kyphoplasty and post-armed kyphoplasty mean posterior wall retropulsion was 5.8 and 4.5 mm, respectively, and mean vertebral body height was 10.8 and 16.7 mm, respectively. They conclude that in the treatment of burst fractures with posterior wall retropulsion and no neurologic deficit, armed kyphoplastyyields fracture reduction, internal fixation, and indirect central canal decompression.

  13. Clifford, S.C.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  14. Corrales, C.E.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261

D

  1. Dangouloff-Ros, V.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

  2. Daniels, D.J.

    1. Pediatrics
      You have access
      Mixed Solid and Cystic Mass in an Infant
      J.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. Morris
      American Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
  3. Davies, J.M.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
  4. Debnam, J.M.

    1. Head & Neck
      You have access
      Diagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal Masses
      T.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-Monroe
      American Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
  5. DeLone, D.R.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  6. de Vries, L.S.

    1. Pediatrics
      Open Access
      Signal Change in the Mammillary Bodies after Perinatal Asphyxia
      M. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. Lequin
      American Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232

E

  1. Easter, L.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  2. Eckel, L.

    1. Pediatrics
      You have access
      Mixed Solid and Cystic Mass in an Infant
      J.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. Morris
      American Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
  3. Eckert, M.A.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Prolonged Microgravity Affects Human Brain Structure and Function
      D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
      American Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249

      Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.

  4. Edeiken-Monroe, B.

    1. Head & Neck
      You have access
      Diagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal Masses
      T.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-Monroe
      American Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
  5. Edwards, P.K.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  6. Escott, E.J.

    1. Patient Safety
      You have access
      Dose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal Model
      F.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. Zhang
      American Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258

F

  1. Fan, Q.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  2. Feigal, D.

    1. Patient Safety
      You have access
      Dose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal Model
      F.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. Zhang
      American Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
  3. Felton, E.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  4. Feng, F.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  5. Fletcher, J.G.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  6. Flood, T.F.

    1. Pediatrics
      You have access
      Age-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR Imaging
      T.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. Mirsky
      American Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
  7. Fornage, B.D.

    1. Head & Neck
      You have access
      Diagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal Masses
      T.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-Monroe
      American Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
  8. Fouladi, M.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253

G

  1. Gagoski, B.

    1. EDITOR'S CHOICEPediatrics
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  2. Ganesh, H.

    1. Patient Safety
      You have access
      Dose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal Model
      F.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. Zhang
      American Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
  3. Gao, S.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  4. Gautam, A.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  5. George, M.S.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Prolonged Microgravity Affects Human Brain Structure and Function
      D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
      American Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249

      Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.

  6. Goschzik, T.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  7. Grant, P.E.

    1. EDITOR'S CHOICEPediatrics
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  8. Grayev, A.M.

    1. Spine
      You have access
      Unintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine Imaging
      D.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. Kuner
      American Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
  9. Grevent, D.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

  10. Groenendaal, F.

    1. Pediatrics
      Open Access
      Signal Change in the Mammillary Bodies after Perinatal Asphyxia
      M. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. Lequin
      American Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
  11. Guenette, J.P.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
  12. Guerin, J.B.

    1. Pediatrics
      You have access
      Mixed Solid and Cystic Mass in an Infant
      J.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. Morris
      American Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
  13. Guglielmi, Guido

    1. You have access
      Perspectives
      Guido Guglielmi
      American Journal of Neuroradiology November 2019, 40 (11) 1791; DOI: https://doi.org/10.3174/ajnr.P0072
  14. Gule-Monroe, M.

    1. Head & Neck
      You have access
      Diagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal Masses
      T.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-Monroe
      American Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236

H

  1. Hara, S.

    1. Adult Brain
      Open Access
      Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition
      S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
      American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
  2. Hartman, A.L.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  3. Hayashi, S.

    1. Adult Brain
      Open Access
      Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition
      S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
      American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
  4. Heier, L.A.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
  5. Hicks, D.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  6. Hirsch, J.A.

    1. FELLOWS' JOURNAL CLUBSpine
      You have access
      Armed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst Fractures
      A. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. Cianfoni
      American Journal of Neuroradiology November 2019, 40 (11) 1965-1972; DOI: https://doi.org/10.3174/ajnr.A6285

      This study assesses the results of armed kyphoplasty using vertebral body stents or the SpineJack in traumatic, osteoporotic, and neoplastic burst fractures with respect to vertebral body height restoration and correction of posterior wall retropulsion. The authors performed a retrospective assessment of 53 burst fractures with posterior wall retropulsion and no neurologic deficit in 51 consecutive patients treated with armed kyphoplasty. Posterior wall retropulsion and vertebral body height were measured on pre- and postprocedural CT. Armed kyphoplasty was performed as a stand-alone treatment in 43 patients, combined with posterior instrumentation in 8 and laminectomy in 4. Pre-armed kyphoplasty and post-armed kyphoplasty mean posterior wall retropulsion was 5.8 and 4.5 mm, respectively, and mean vertebral body height was 10.8 and 16.7 mm, respectively. They conclude that in the treatment of burst fractures with posterior wall retropulsion and no neurologic deficit, armed kyphoplastyyields fracture reduction, internal fixation, and indirect central canal decompression.

  7. Holmes, D.R.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  8. Hori, M.

    1. Adult Brain
      Open Access
      Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition
      S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
      American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
  9. Hsu, F.-C.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  10. Huang, R.Y.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
  11. Huang, S.Y.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  12. Hwang, E.I.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253

I

  1. Inaji, M.

    1. Adult Brain
      Open Access
      Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition
      S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
      American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
  2. Inglesby, D.C.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Prolonged Microgravity Affects Human Brain Structure and Function
      D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
      American Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249

      Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.

  3. Isalberti, M.

    1. FELLOWS' JOURNAL CLUBSpine
      You have access
      Armed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst Fractures
      A. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. Cianfoni
      American Journal of Neuroradiology November 2019, 40 (11) 1965-1972; DOI: https://doi.org/10.3174/ajnr.A6285

      This study assesses the results of armed kyphoplasty using vertebral body stents or the SpineJack in traumatic, osteoporotic, and neoplastic burst fractures with respect to vertebral body height restoration and correction of posterior wall retropulsion. The authors performed a retrospective assessment of 53 burst fractures with posterior wall retropulsion and no neurologic deficit in 51 consecutive patients treated with armed kyphoplasty. Posterior wall retropulsion and vertebral body height were measured on pre- and postprocedural CT. Armed kyphoplasty was performed as a stand-alone treatment in 43 patients, combined with posterior instrumentation in 8 and laminectomy in 4. Pre-armed kyphoplasty and post-armed kyphoplasty mean posterior wall retropulsion was 5.8 and 4.5 mm, respectively, and mean vertebral body height was 10.8 and 16.7 mm, respectively. They conclude that in the treatment of burst fractures with posterior wall retropulsion and no neurologic deficit, armed kyphoplastyyields fracture reduction, internal fixation, and indirect central canal decompression.

  4. Ishii, K.

    1. Adult Brain
      Open Access
      Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition
      S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
      American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248

J

  1. Jaju, A.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
  2. Jandeaux, C.

    1. Pediatrics
      You have access
      Biometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 Children
      C. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-Ares
      American Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
  3. Jayender, J.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
  4. Jensen, A.

    1. Pediatrics
      You have access
      Age-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR Imaging
      T.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. Mirsky
      American Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
  5. Jing, L.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
  6. Johnson, M.P.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  7. Jordan, C.D.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  8. Jung, Y.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287

K

  1. Kass, J.I.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
  2. Kim, B.-S.

    1. Interventional
      You have access
      The Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment Modalities
      D.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. Shin
      American Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
  3. Kim, C.J.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
  4. Kim, N.Y.

    1. Spine
      You have access
      Unintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine Imaging
      D.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. Kuner
      American Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
  5. Kimbrell, V.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
  6. Klawiter, E.C.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  7. Kline, C.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  8. Kool, M.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
  9. Kossoff, E.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  10. Kotsenas, A.L.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  11. Kuchcinski, G.

    1. Pediatrics
      You have access
      Biometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 Children
      C. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-Ares
      American Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
  12. Kuhlen, D.E.

    1. FELLOWS' JOURNAL CLUBSpine
      You have access
      Armed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst Fractures
      A. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. Cianfoni
      American Journal of Neuroradiology November 2019, 40 (11) 1965-1972; DOI: https://doi.org/10.3174/ajnr.A6285

      This study assesses the results of armed kyphoplasty using vertebral body stents or the SpineJack in traumatic, osteoporotic, and neoplastic burst fractures with respect to vertebral body height restoration and correction of posterior wall retropulsion. The authors performed a retrospective assessment of 53 burst fractures with posterior wall retropulsion and no neurologic deficit in 51 consecutive patients treated with armed kyphoplasty. Posterior wall retropulsion and vertebral body height were measured on pre- and postprocedural CT. Armed kyphoplasty was performed as a stand-alone treatment in 43 patients, combined with posterior instrumentation in 8 and laminectomy in 4. Pre-armed kyphoplasty and post-armed kyphoplasty mean posterior wall retropulsion was 5.8 and 4.5 mm, respectively, and mean vertebral body height was 10.8 and 16.7 mm, respectively. They conclude that in the treatment of burst fractures with posterior wall retropulsion and no neurologic deficit, armed kyphoplastyyields fracture reduction, internal fixation, and indirect central canal decompression.

  13. Kuner, A.D.

    1. Spine
      You have access
      Unintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine Imaging
      D.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. Kuner
      American Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
  14. Kun Kim, D.

    1. Pediatrics
      You have access
      Mixed Solid and Cystic Mass in an Infant
      J.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. Morris
      American Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
  15. Kwon, M.

    1. Head & Neck
      You have access
      Diagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal Masses
      T.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-Monroe
      American Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236

L

  1. Laine, M.

    1. Pediatrics
      You have access
      Susceptibility-Weighted Imaging Findings in Aspartylglucosaminuria
      A. Tokola, M. Laine, R. Tikkanen and T. Autti
      American Journal of Neuroradiology November 2019, 40 (11) 1850-1854; DOI: https://doi.org/10.3174/ajnr.A6288
  2. Leclerc, X.

    1. Pediatrics
      You have access
      Biometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 Children
      C. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-Ares
      American Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
  3. Lee, T.C.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
  4. Lehman, V.T.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  5. Leng, S.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  6. Lequin, M.

    1. Pediatrics
      Open Access
      Signal Change in the Mammillary Bodies after Perinatal Asphyxia
      M. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. Lequin
      American Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
  7. Levy, R.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

  8. Li, M.-L.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  9. Li, R.

    1. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
  10. Li, W.

    1. EDITOR'S CHOICEInterventional
      Open Access
      Hemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control Study
      W. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. Liu
      American Journal of Neuroradiology November 2019, 40 (11) 1916-1923; DOI: https://doi.org/10.3174/ajnr.A6256

      The authors enrolled 10 patients with intracranial aneurysms, treated with flow diverters between September 2014 and December 2018, who experienced postoperative aneurysm rupture. They matched these subjects 1:2 with 20 with postoperative unruptured intracranial aneurysms based on clinical and morphologic factors. Using computational fluid dynamics, they assessed hemodynamic changes pre- and posttreatment between the 2 groups on a number of qualitative and quantitative parameters. Compared with pretreatment, unstable flow pattern and higher energy loss after Pipeline Embolization Device placement for intracranial aneurysm may be the important hemodynamic risk factors related to delayed aneurysm rupture.

  11. Li, Y.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
    2. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
    3. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  12. Liebeskind, D.S.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  13. Lin, D.D.M.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  14. Liu, J.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
    2. EDITOR'S CHOICEInterventional
      Open Access
      Hemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control Study
      W. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. Liu
      American Journal of Neuroradiology November 2019, 40 (11) 1916-1923; DOI: https://doi.org/10.3174/ajnr.A6256

      The authors enrolled 10 patients with intracranial aneurysms, treated with flow diverters between September 2014 and December 2018, who experienced postoperative aneurysm rupture. They matched these subjects 1:2 with 20 with postoperative unruptured intracranial aneurysms based on clinical and morphologic factors. Using computational fluid dynamics, they assessed hemodynamic changes pre- and posttreatment between the 2 groups on a number of qualitative and quantitative parameters. Compared with pretreatment, unstable flow pattern and higher energy loss after Pipeline Embolization Device placement for intracranial aneurysm may be the important hemodynamic risk factors related to delayed aneurysm rupture.

  15. Liu, M.-W.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  16. Liu, T.-F.

    1. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
  17. Lou, X.

    1. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
  18. Lozach, C.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

M

  1. Ma, L.

    1. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
  2. Machado, N.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  3. Maehara, T.

    1. Adult Brain
      Open Access
      Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition
      S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
      American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
  4. Maloney, J.A.

    1. Pediatrics
      You have access
      Age-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR Imaging
      T.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. Mirsky
      American Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
  5. Mamourian, A.

    1. LETTER
      You have access
      Impact on Quality of Neuroradiology Interpretations by Caseload
      A. Mamourian
      American Journal of Neuroradiology November 2019, 40 (11) E64; DOI: https://doi.org/10.3174/ajnr.A6229
  6. McCollough, C.H.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  7. Meng, H.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
  8. Michalak, G.J.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  9. Mirsky, D.M.

    1. Pediatrics
      You have access
      Age-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR Imaging
      T.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. Mirsky
      American Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
  10. Molavi, M.

    1. Pediatrics
      Open Access
      Signal Change in the Mammillary Bodies after Perinatal Asphyxia
      M. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. Lequin
      American Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
  11. Morris, P.

    1. Pediatrics
      You have access
      Mixed Solid and Cystic Mass in an Infant
      J.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. Morris
      American Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
  12. Mueller, S.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  13. Mynarek, M.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286

N

  1. Naggara, O.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

  2. Nariai, T.

    1. Adult Brain
      Open Access
      Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition
      S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
      American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
  3. Ngamsombat, C.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  4. Nicolas, N.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

  5. Nietert, P.J.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Prolonged Microgravity Affects Human Brain Structure and Function
      D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
      American Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249

      Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.

  6. Nummenmaa, A.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283

O

  1. Ocal, O.

    1. Interventional
      You have access
      Placement of a Stent within a Flow Diverter Improves Aneurysm Occlusion Rates
      O. Ocal, A. Peker, S. Balci and A. Arat
      American Journal of Neuroradiology November 2019, 40 (11) 1932-1938; DOI: https://doi.org/10.3174/ajnr.A6237
  2. Olson, J.M.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
  3. Orbach, D.B.

    1. EDITOR'S CHOICEPediatrics
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  4. Otto, B.J.

    1. Spine
      You have access
      Unintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine Imaging
      D.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. Kuner
      American Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238

P

  1. Packer, R.J.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
  2. Park, Y.K.

    1. Interventional
      You have access
      The Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment Modalities
      D.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. Shin
      American Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
  3. Peker, A.

    1. Interventional
      You have access
      Placement of a Stent within a Flow Diverter Improves Aneurysm Occlusion Rates
      O. Ocal, A. Peker, S. Balci and A. Arat
      American Journal of Neuroradiology November 2019, 40 (11) 1932-1938; DOI: https://doi.org/10.3174/ajnr.A6237
  4. Pfister, S.M.

    1. Pediatrics
      Open Access
      MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial
      A. Jaju, E.I. Hwang, M. Kool, D. Capper, L. Chavez, S. Brabetz, C. Billups, Y. Li, M. Fouladi, R.J. Packer, S.M. Pfister, J.M. Olson and L.A. Heier
      American Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
    2. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  5. Pham, M.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  6. Pietsch, T.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  7. Pruvo, J.-P.

    1. Pediatrics
      You have access
      Biometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 Children
      C. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-Ares
      American Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257

R

  1. Rajabzadeh-Oghaz, H.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
  2. Raslau, F.D.

    1. Patient Safety
      You have access
      Dose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal Model
      F.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. Zhang
      American Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
  3. Reinert, M.

    1. FELLOWS' JOURNAL CLUBSpine
      You have access
      Armed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst Fractures
      A. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. Cianfoni
      American Journal of Neuroradiology November 2019, 40 (11) 1965-1972; DOI: https://doi.org/10.3174/ajnr.A6285

      This study assesses the results of armed kyphoplasty using vertebral body stents or the SpineJack in traumatic, osteoporotic, and neoplastic burst fractures with respect to vertebral body height restoration and correction of posterior wall retropulsion. The authors performed a retrospective assessment of 53 burst fractures with posterior wall retropulsion and no neurologic deficit in 51 consecutive patients treated with armed kyphoplasty. Posterior wall retropulsion and vertebral body height were measured on pre- and postprocedural CT. Armed kyphoplasty was performed as a stand-alone treatment in 43 patients, combined with posterior instrumentation in 8 and laminectomy in 4. Pre-armed kyphoplasty and post-armed kyphoplasty mean posterior wall retropulsion was 5.8 and 4.5 mm, respectively, and mean vertebral body height was 10.8 and 16.7 mm, respectively. They conclude that in the treatment of burst fractures with posterior wall retropulsion and no neurologic deficit, armed kyphoplastyyields fracture reduction, internal fixation, and indirect central canal decompression.

  4. Riquet, A.

    1. Pediatrics
      You have access
      Biometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 Children
      C. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-Ares
      American Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
  5. Roberts, D.R.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Prolonged Microgravity Affects Human Brain Structure and Function
      D.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. Brown
      American Journal of Neuroradiology November 2019, 40 (11) 1878-1885; DOI: https://doi.org/10.3174/ajnr.A6249

      Brain MR imaging scans of National Aeronautics and Space Administration astronauts were retrospectively analyzed to quantify pre- to postflight changes in brain structure. Local structural changes were assessed using the Jacobian determinant. Structural changes were compared with clinical findings and cognitive and motor function. Long-duration spaceflights aboard the International Space Station, but not short-duration Space Shuttle flights, resulted in a significant increase in the percentage of total ventricular volume change (10.7% versus 0%). The percentage of total ventricular volume change was significantly associated with mission duration but negatively associated with age. Pre- to postflight structural changes of the left caudate correlated significantly with poor postural control, and the right primary motor area/midcingulate correlated significantly with a complex motor task completion time. These findings suggest that brain structural changes are associated with changes in cognitive and motor test scores and with the development of spaceflight-associated neuro-optic syndrome.

  6. Robertson, R.L.

    1. EDITOR'S CHOICEPediatrics
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  7. Roccatagliata, L.

    1. FELLOWS' JOURNAL CLUBSpine
      You have access
      Armed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst Fractures
      A. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. Cianfoni
      American Journal of Neuroradiology November 2019, 40 (11) 1965-1972; DOI: https://doi.org/10.3174/ajnr.A6285

      This study assesses the results of armed kyphoplasty using vertebral body stents or the SpineJack in traumatic, osteoporotic, and neoplastic burst fractures with respect to vertebral body height restoration and correction of posterior wall retropulsion. The authors performed a retrospective assessment of 53 burst fractures with posterior wall retropulsion and no neurologic deficit in 51 consecutive patients treated with armed kyphoplasty. Posterior wall retropulsion and vertebral body height were measured on pre- and postprocedural CT. Armed kyphoplasty was performed as a stand-alone treatment in 43 patients, combined with posterior instrumentation in 8 and laminectomy in 4. Pre-armed kyphoplasty and post-armed kyphoplasty mean posterior wall retropulsion was 5.8 and 4.5 mm, respectively, and mean vertebral body height was 10.8 and 16.7 mm, respectively. They conclude that in the treatment of burst fractures with posterior wall retropulsion and no neurologic deficit, armed kyphoplastyyields fracture reduction, internal fixation, and indirect central canal decompression.

  8. Rosen, B.R.

    1. EDITOR'S CHOICEPediatrics
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  9. Roux, C.-J.

    1. FELLOWS' JOURNAL CLUBPediatrics
      You have access
      Incidental Brain MRI Findings in Children: A Systematic Review and Meta-Analysis
      V. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. Naggara
      American Journal of Neuroradiology November 2019, 40 (11) 1818-1823; DOI: https://doi.org/10.3174/ajnr.A6281

      Seven studies were included, reporting 5938 children (mean age, 11.3 ± 2.8 years). Incidental findings were present in 16.4% of healthy children, intracranial cysts being the most frequent (10.2%). Nonspecific white matter hyperintensities were reported in 1.9%, Chiari I malformation was found in 0.8%, and intracranial neoplasms were reported in 0.2%. In total, the prevalence of incidental findings needing follow-up was 2.6%. The prevalence of incidental findings is much more frequent in children than previously reported in adults, but clinically significant incidental findings were present in <1 in 38 children.

  10. Russo, A.W.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  11. Rutkowski, S.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286

S

  1. Salman, M.

    1. Editorial
      You have access
      Time to Discontinue Use of the Term “Hemorrhagic Stroke”
      M. Aftab and M. Salman
      American Journal of Neuroradiology November 2019, 40 (11) 1893; DOI: https://doi.org/10.3174/ajnr.A6240
  2. Scalzo, F.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  3. Scarone, P.

    1. FELLOWS' JOURNAL CLUBSpine
      You have access
      Armed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst Fractures
      A. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. Cianfoni
      American Journal of Neuroradiology November 2019, 40 (11) 1965-1972; DOI: https://doi.org/10.3174/ajnr.A6285

      This study assesses the results of armed kyphoplasty using vertebral body stents or the SpineJack in traumatic, osteoporotic, and neoplastic burst fractures with respect to vertebral body height restoration and correction of posterior wall retropulsion. The authors performed a retrospective assessment of 53 burst fractures with posterior wall retropulsion and no neurologic deficit in 51 consecutive patients treated with armed kyphoplasty. Posterior wall retropulsion and vertebral body height were measured on pre- and postprocedural CT. Armed kyphoplasty was performed as a stand-alone treatment in 43 patients, combined with posterior instrumentation in 8 and laminectomy in 4. Pre-armed kyphoplasty and post-armed kyphoplasty mean posterior wall retropulsion was 5.8 and 4.5 mm, respectively, and mean vertebral body height was 10.8 and 16.7 mm, respectively. They conclude that in the treatment of burst fractures with posterior wall retropulsion and no neurologic deficit, armed kyphoplastyyields fracture reduction, internal fixation, and indirect central canal decompression.

  4. Schreck, K.C.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  5. Schwalbe, E.C.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  6. Seethamraju, R.T.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
  7. Shi, P.-A.

    1. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
  8. Shimizu, A.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
  9. Shin, Y.S.

    1. Interventional
      You have access
      The Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment Modalities
      D.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. Shin
      American Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
  10. Siddiqui, A.H.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
  11. Smiley, J.

    1. Patient Safety
      You have access
      Dose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal Model
      F.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. Zhang
      American Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
  12. Smith, E.

    1. EDITOR'S CHOICEPediatrics
      You have access
      Comparison of CBF Measured with Combined Velocity-Selective Arterial Spin-Labeling and Pulsed Arterial Spin-Labeling to Blood Flow Patterns Assessed by Conventional Angiography in Pediatric Moyamoya
      D.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. Robertson
      American Journal of Neuroradiology November 2019, 40 (11) 1842-1849; DOI: https://doi.org/10.3174/ajnr.A6262

      This study assesses the accuracy of combined velocity-selective arterial spin-labeling and traditional pulsed arterial spin-labeling CBF measurements in pediatric Moyamoya disease, with comparison with blood flow patterns on conventional angiography. Twenty-two neurologically stable pediatric patients with Moyamoya disease and 5 asymptomatic siblings without frank Moyamoya disease were imaged with velocity-selective arterial spin-labeling, pulsed arterial spin-labeling, and DSA (patients). Qualitatively, velocity-selective arterial spin-labeling perfusion maps reflect the DSA parenchymal phase, regardless of postinjection timing. Conversely, pulsed arterial spin-labeling maps reflect the DSA appearance at postinjection times closer to pulsed arterial spin-labeling postlabeling delay, regardless of vascular phase. ASPECTS comparison showed excellent agreement between arterial spin-labeling and DSA, suggesting velocity-selective arterial spin-labeling and pulsed arterial spin-labeling capture key perfusion and transit delay information, respectively. Velocity-selective arterial spin-labeling offers a powerful approach to image perfusion in pediatric Moyamoya disease due to transit delay insensitivity.

  13. Solomon, D.A.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  14. Soto-Ares, G.

    1. Pediatrics
      You have access
      Biometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 Children
      C. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-Ares
      American Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
  15. Stence, N.V.

    1. Pediatrics
      You have access
      Age-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR Imaging
      T.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. Mirsky
      American Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
  16. Stock, A.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  17. Strowd, R.E.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  18. Sturm, D.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  19. Sugiyama, S.-I.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
  20. Summerfield, D.

    1. Pediatrics
      You have access
      Mixed Solid and Cystic Mass in an Infant
      J.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. Morris
      American Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
  21. Sun, J.

    1. Head & Neck
      You have access
      Diagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal Masses
      T.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-Monroe
      American Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236

T

  1. Tamrazi, B.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  2. Tanaka, Y.

    1. Adult Brain
      Open Access
      Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition
      S. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. Nariai
      American Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
  3. Ternynck, C.

    1. Pediatrics
      You have access
      Biometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 Children
      C. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-Ares
      American Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
  4. Tian, Q.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  5. Tian, Z.

    1. EDITOR'S CHOICEInterventional
      Open Access
      Hemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control Study
      W. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. Liu
      American Journal of Neuroradiology November 2019, 40 (11) 1916-1923; DOI: https://doi.org/10.3174/ajnr.A6256

      The authors enrolled 10 patients with intracranial aneurysms, treated with flow diverters between September 2014 and December 2018, who experienced postoperative aneurysm rupture. They matched these subjects 1:2 with 20 with postoperative unruptured intracranial aneurysms based on clinical and morphologic factors. Using computational fluid dynamics, they assessed hemodynamic changes pre- and posttreatment between the 2 groups on a number of qualitative and quantitative parameters. Compared with pretreatment, unstable flow pattern and higher energy loss after Pipeline Embolization Device placement for intracranial aneurysm may be the important hemodynamic risk factors related to delayed aneurysm rupture.

  6. Tikkanen, R.

    1. Pediatrics
      You have access
      Susceptibility-Weighted Imaging Findings in Aspartylglucosaminuria
      A. Tokola, M. Laine, R. Tikkanen and T. Autti
      American Journal of Neuroradiology November 2019, 40 (11) 1850-1854; DOI: https://doi.org/10.3174/ajnr.A6288
  7. Tokola, A.

    1. Pediatrics
      You have access
      Susceptibility-Weighted Imaging Findings in Aspartylglucosaminuria
      A. Tokola, M. Laine, R. Tikkanen and T. Autti
      American Journal of Neuroradiology November 2019, 40 (11) 1850-1854; DOI: https://doi.org/10.3174/ajnr.A6288
  8. Tong, E.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  9. Tran, N.-A.

    1. Head & Neck
      Open Access
      MR Imaging of the Extracranial Facial Nerve with the CISS Sequence
      J.P. Guenette, N. Ben-Shlomo, J. Jayender, R.T. Seethamraju, V. Kimbrell, N.-A. Tran, R.Y. Huang, C.J. Kim, J.I. Kass, C.E. Corrales and T.C. Lee
      American Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261

V

  1. Vann, S.D.

    1. Pediatrics
      Open Access
      Signal Change in the Mammillary Bodies after Perinatal Asphyxia
      M. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. Lequin
      American Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
  2. Varble, N.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
  3. Vardapetyan, A.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  4. Venier, A.

    1. FELLOWS' JOURNAL CLUBSpine
      You have access
      Armed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst Fractures
      A. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. Cianfoni
      American Journal of Neuroradiology November 2019, 40 (11) 1965-1972; DOI: https://doi.org/10.3174/ajnr.A6285

      This study assesses the results of armed kyphoplasty using vertebral body stents or the SpineJack in traumatic, osteoporotic, and neoplastic burst fractures with respect to vertebral body height restoration and correction of posterior wall retropulsion. The authors performed a retrospective assessment of 53 burst fractures with posterior wall retropulsion and no neurologic deficit in 51 consecutive patients treated with armed kyphoplasty. Posterior wall retropulsion and vertebral body height were measured on pre- and postprocedural CT. Armed kyphoplasty was performed as a stand-alone treatment in 43 patients, combined with posterior instrumentation in 8 and laminectomy in 4. Pre-armed kyphoplasty and post-armed kyphoplasty mean posterior wall retropulsion was 5.8 and 4.5 mm, respectively, and mean vertebral body height was 10.8 and 16.7 mm, respectively. They conclude that in the treatment of burst fractures with posterior wall retropulsion and no neurologic deficit, armed kyphoplastyyields fracture reduction, internal fixation, and indirect central canal decompression.

  5. Villablanca, J.P.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  6. Vu, T.H.

    1. Head & Neck
      You have access
      Diagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal Masses
      T.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-Monroe
      American Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236

W

  1. Wald, L.L.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  2. Wang, C.

    1. Patient Safety
      You have access
      Dose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal Model
      F.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. Zhang
      American Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
  3. Wang, J.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
  4. Wang, K.

    1. EDITOR'S CHOICEInterventional
      Open Access
      Hemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control Study
      W. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. Liu
      American Journal of Neuroradiology November 2019, 40 (11) 1916-1923; DOI: https://doi.org/10.3174/ajnr.A6256

      The authors enrolled 10 patients with intracranial aneurysms, treated with flow diverters between September 2014 and December 2018, who experienced postoperative aneurysm rupture. They matched these subjects 1:2 with 20 with postoperative unruptured intracranial aneurysms based on clinical and morphologic factors. Using computational fluid dynamics, they assessed hemodynamic changes pre- and posttreatment between the 2 groups on a number of qualitative and quantitative parameters. Compared with pretreatment, unstable flow pattern and higher energy loss after Pipeline Embolization Device placement for intracranial aneurysm may be the important hemodynamic risk factors related to delayed aneurysm rupture.

  5. Wang, Y.

    1. EDITOR'S CHOICEInterventional
      Open Access
      Hemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control Study
      W. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. Liu
      American Journal of Neuroradiology November 2019, 40 (11) 1916-1923; DOI: https://doi.org/10.3174/ajnr.A6256

      The authors enrolled 10 patients with intracranial aneurysms, treated with flow diverters between September 2014 and December 2018, who experienced postoperative aneurysm rupture. They matched these subjects 1:2 with 20 with postoperative unruptured intracranial aneurysms based on clinical and morphologic factors. Using computational fluid dynamics, they assessed hemodynamic changes pre- and posttreatment between the 2 groups on a number of qualitative and quantitative parameters. Compared with pretreatment, unstable flow pattern and higher energy loss after Pipeline Embolization Device placement for intracranial aneurysm may be the important hemodynamic risk factors related to delayed aneurysm rupture.

    2. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
  6. Wang, Y.-L.

    1. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
  7. Warmuth-Metz, M.

    1. Pediatrics
      You have access
      Imaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial Cohort
      A. Stock, M. Mynarek, T. Pietsch, S.M. Pfister, S.C. Clifford, T. Goschzik, D. Sturm, E.C. Schwalbe, D. Hicks, S. Rutkowski, B. Bison, M. Pham and M. Warmuth-Metz
      American Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
  8. Wayer, D.R.

    1. Spine
      You have access
      Unintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine Imaging
      D.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. Kuner
      American Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
  9. Weinberg, B.

    1. Pediatrics
      Open Access
      Diffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram Analysis
      M.S. Aboian, E. Tong, D.A. Solomon, C. Kline, A. Gautam, A. Vardapetyan, B. Tamrazi, Y. Li, C.D. Jordan, E. Felton, B. Weinberg, S. Braunstein, S. Mueller and S. Cha
      American Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
  10. Whitlow, C.T.

    1. Adult Brain
      Open Access
      Cerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based Diet
      A. Berrington, K.C. Schreck, B.J. Barron, L. Blair, D.D.M. Lin, A.L. Hartman, E. Kossoff, L. Easter, C.T. Whitlow, Y. Jung, F.-C. Hsu, M.C. Cervenka, J.O. Blakeley, P.B. Barker and R.E. Strowd
      American Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
  11. Witzel, T.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  12. Wu, K.

    1. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279

X

  1. Xiao, H.-F.

    1. Adult Brain
      You have access
      Role of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex Encephalitis
      R. Li, P.-A. Shi, T.-F. Liu, Y. Li, Y. Wang, K. Wu, X.-J. Chen, H.-F. Xiao, Y.-L. Wang, L. Ma and X. Lou
      American Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
  2. Xu, W.-H.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  3. Xu, Y.-Y.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260

Y

  1. Yang, X.

    1. Interventional
      Open Access
      Novel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple Aneurysms
      H. Rajabzadeh-Oghaz, J. Wang, N. Varble, S.-I. Sugiyama, A. Shimizu, L. Jing, J. Liu, X. Yang, A.H. Siddiqui, J.M. Davies and H. Meng
      American Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
    2. EDITOR'S CHOICEInterventional
      Open Access
      Hemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control Study
      W. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. Liu
      American Journal of Neuroradiology November 2019, 40 (11) 1916-1923; DOI: https://doi.org/10.3174/ajnr.A6256

      The authors enrolled 10 patients with intracranial aneurysms, treated with flow diverters between September 2014 and December 2018, who experienced postoperative aneurysm rupture. They matched these subjects 1:2 with 20 with postoperative unruptured intracranial aneurysms based on clinical and morphologic factors. Using computational fluid dynamics, they assessed hemodynamic changes pre- and posttreatment between the 2 groups on a number of qualitative and quantitative parameters. Compared with pretreatment, unstable flow pattern and higher energy loss after Pipeline Embolization Device placement for intracranial aneurysm may be the important hemodynamic risk factors related to delayed aneurysm rupture.

  2. Yu, F.

    1. Adult Brain
      Open Access
      Imaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue Volume
      F. Yu, Q. Fan, Q. Tian, C. Ngamsombat, N. Machado, J.D. Bireley, A.W. Russo, A. Nummenmaa, T. Witzel, L.L. Wald, E.C. Klawiter and S.Y. Huang
      American Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
  3. Yu, L.

    1. FELLOWS' JOURNAL CLUBPatient Safety
      Open Access
      Evaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic Deficits
      J.G. Fletcher, D.R. DeLone, A.L. Kotsenas, N.G. Campeau, V.T. Lehman, L. Yu, S. Leng, D.R. Holmes, P.K. Edwards, M.P. Johnson, G.J. Michalak, R.E. Carter and C.H. McCollough
      American Journal of Neuroradiology November 2019, 40 (11) 1855-1863; DOI: https://doi.org/10.3174/ajnr.A6251

      Projection data from 83 patients undergoing unenhanced spiral head CT for suspected neurologic deficits were collected. A routine dose was obtained using 250 effective mAs and iterative reconstruction. Lower-dose configurations were reconstructed (25-effective mAs iterative reconstruction, 50-effective mAs filtered back-projection and iterative reconstruction, 100-effective mAs filtered back-projection and iterative reconstruction, 200-effective mAs filtered back-projection). Three neuroradiologists circled findings, indicating diagnosis, confidence, and image quality. The routine-dose jackknife alternative free-response receiver operating characteristic figure of merit was 0.87. Noninferiority was shown for 100-effective mAs iterative reconstruction and 200-effective mAs filtered back-projection, but not for100-effective mAs filtered back-projection. The authors conclude that substantial opportunity exists for dose reduction using spiral nonenhanced head CT and that the dose level might potentially be reduced to 40% of routine dose levels or a volume CT dose index of approximately 15mGy if slight decreases in performance are acceptable. The beneficial effect of iterative reconstrution was most pronounced at this 15-mGy dose level.

  4. Yu, Y.-N.

    1. Adult Brain
      Open Access
      Middle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic Stroke
      Y.-N. Yu, M.-W. Liu, J.P. Villablanca, M.-L. Li, Y.-Y. Xu, S. Gao, F. Feng, D.S. Liebeskind, F. Scalzo and W.-H. Xu
      American Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
  5. Yzet, T.

    1. Interventional
      You have access
      Transitioning to Transradial Access for Cerebral Aneurysm Embolization
      C. Chivot, R. Bouzerar and T. Yzet
      American Journal of Neuroradiology November 2019, 40 (11) 1947-1953; DOI: https://doi.org/10.3174/ajnr.A6234

Z

  1. Zhang, J.

    1. Patient Safety
      You have access
      Dose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal Model
      F.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. Zhang
      American Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
  2. Zhang, Y.

    1. EDITOR'S CHOICEInterventional
      Open Access
      Hemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control Study
      W. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. Liu
      American Journal of Neuroradiology November 2019, 40 (11) 1916-1923; DOI: https://doi.org/10.3174/ajnr.A6256

      The authors enrolled 10 patients with intracranial aneurysms, treated with flow diverters between September 2014 and December 2018, who experienced postoperative aneurysm rupture. They matched these subjects 1:2 with 20 with postoperative unruptured intracranial aneurysms based on clinical and morphologic factors. Using computational fluid dynamics, they assessed hemodynamic changes pre- and posttreatment between the 2 groups on a number of qualitative and quantitative parameters. Compared with pretreatment, unstable flow pattern and higher energy loss after Pipeline Embolization Device placement for intracranial aneurysm may be the important hemodynamic risk factors related to delayed aneurysm rupture.

  3. Zhang, Y.S.

    1. EDITOR'S CHOICEInterventional
      Open Access
      Hemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control Study
      W. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. Liu
      American Journal of Neuroradiology November 2019, 40 (11) 1916-1923; DOI: https://doi.org/10.3174/ajnr.A6256

      The authors enrolled 10 patients with intracranial aneurysms, treated with flow diverters between September 2014 and December 2018, who experienced postoperative aneurysm rupture. They matched these subjects 1:2 with 20 with postoperative unruptured intracranial aneurysms based on clinical and morphologic factors. Using computational fluid dynamics, they assessed hemodynamic changes pre- and posttreatment between the 2 groups on a number of qualitative and quantitative parameters. Compared with pretreatment, unstable flow pattern and higher energy loss after Pipeline Embolization Device placement for intracranial aneurysm may be the important hemodynamic risk factors related to delayed aneurysm rupture.

  4. Zhu, W.

    1. EDITOR'S CHOICEInterventional
      Open Access
      Hemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control Study
      W. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. Liu
      American Journal of Neuroradiology November 2019, 40 (11) 1916-1923; DOI: https://doi.org/10.3174/ajnr.A6256

      The authors enrolled 10 patients with intracranial aneurysms, treated with flow diverters between September 2014 and December 2018, who experienced postoperative aneurysm rupture. They matched these subjects 1:2 with 20 with postoperative unruptured intracranial aneurysms based on clinical and morphologic factors. Using computational fluid dynamics, they assessed hemodynamic changes pre- and posttreatment between the 2 groups on a number of qualitative and quantitative parameters. Compared with pretreatment, unstable flow pattern and higher energy loss after Pipeline Embolization Device placement for intracranial aneurysm may be the important hemodynamic risk factors related to delayed aneurysm rupture.

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American Journal of Neuroradiology: 40 (11)
American Journal of Neuroradiology
Vol. 40, Issue 11
1 Nov 2019
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