Index by author
A
Aboian, M.S.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Adalsteinsson, E.
- EDITOR'S CHOICEPediatricsYou have accessComparison 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 MoyamoyaD.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. RobertsonAmerican 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.
Adams, C.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
Aftab, M.
- EditorialYou have accessTime to Discontinue Use of the Term “Hemorrhagic Stroke”M. Aftab and M. SalmanAmerican Journal of Neuroradiology November 2019, 40 (11) 1893; DOI: https://doi.org/10.3174/ajnr.A6240
Ahmed, S.
- Head & NeckYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
Aoki, S.
- Adult BrainOpen AccessBayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value DecompositionS. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. NariaiAmerican Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
Arat, A.
- InterventionalYou have accessPlacement of a Stent within a Flow Diverter Improves Aneurysm Occlusion RatesO. Ocal, A. Peker, S. Balci and A. AratAmerican Journal of Neuroradiology November 2019, 40 (11) 1932-1938; DOI: https://doi.org/10.3174/ajnr.A6237
Asemani, D.
- EDITOR'S CHOICEAdult BrainOpen AccessProlonged Microgravity Affects Human Brain Structure and FunctionD.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. BrownAmerican 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.
Autti, T.
- PediatricsYou have accessSusceptibility-Weighted Imaging Findings in AspartylglucosaminuriaA. Tokola, M. Laine, R. Tikkanen and T. AuttiAmerican Journal of Neuroradiology November 2019, 40 (11) 1850-1854; DOI: https://doi.org/10.3174/ajnr.A6288
B
Balci, S.
- InterventionalYou have accessPlacement of a Stent within a Flow Diverter Improves Aneurysm Occlusion RatesO. Ocal, A. Peker, S. Balci and A. AratAmerican Journal of Neuroradiology November 2019, 40 (11) 1932-1938; DOI: https://doi.org/10.3174/ajnr.A6237
Barker, P.B.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Barron, B.J.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Ben-Shlomo, N.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
Benson, J.C.
- PediatricsYou have accessMixed Solid and Cystic Mass in an InfantJ.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. MorrisAmerican Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
Berrington, A.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Bhatt, P.R.
- PediatricsYou have accessAge-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR ImagingT.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. MirskyAmerican Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
Billups, C.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Bireley, J.D.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Bison, B.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Blair, L.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Blakeley, J.O.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Bloomberg, J.J.
- EDITOR'S CHOICEAdult BrainOpen AccessProlonged Microgravity Affects Human Brain Structure and FunctionD.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. BrownAmerican 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.
Boddaert, N.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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.
Bolar, D.S.
- EDITOR'S CHOICEPediatricsYou have accessComparison 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 MoyamoyaD.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. RobertsonAmerican 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.
Bonaldi, G.
- FELLOWS' JOURNAL CLUBSpineYou have accessArmed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst FracturesA. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. CianfoniAmerican 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.
Boulouis, G.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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.
Bouzerar, R.
- InterventionalYou have accessTransitioning to Transradial Access for Cerebral Aneurysm EmbolizationC. Chivot, R. Bouzerar and T. YzetAmerican Journal of Neuroradiology November 2019, 40 (11) 1947-1953; DOI: https://doi.org/10.3174/ajnr.A6234
Brabetz, S.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Braunstein, S.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Brown, T.R.
- EDITOR'S CHOICEAdult BrainOpen AccessProlonged Microgravity Affects Human Brain Structure and FunctionD.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. BrownAmerican 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.
Brunelle, F.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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
Campeau, N.G.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Capper, D.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Carter, R.E.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Cervenka, M.C.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Cha, S.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Chavez, L.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Chen, M.M.
- Head & NeckYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
Chen, X.-J.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
Chivot, C.
- InterventionalYou have accessTransitioning to Transradial Access for Cerebral Aneurysm EmbolizationC. Chivot, R. Bouzerar and T. YzetAmerican Journal of Neuroradiology November 2019, 40 (11) 1947-1953; DOI: https://doi.org/10.3174/ajnr.A6234
Cho, D.Y.
- InterventionalYou have accessThe Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment ModalitiesD.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. ShinAmerican Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
Choi, J.H.
- InterventionalYou have accessThe Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment ModalitiesD.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. ShinAmerican Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
Cianfoni, A.
- FELLOWS' JOURNAL CLUBSpineYou have accessArmed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst FracturesA. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. CianfoniAmerican 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.
Clifford, S.C.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Corrales, C.E.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
D
Dangouloff-Ros, V.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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.
Daniels, D.J.
- PediatricsYou have accessMixed Solid and Cystic Mass in an InfantJ.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. MorrisAmerican Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
Davies, J.M.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
Debnam, J.M.
- Head & NeckYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
DeLone, D.R.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
de Vries, L.S.
- PediatricsOpen AccessSignal Change in the Mammillary Bodies after Perinatal AsphyxiaM. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. LequinAmerican Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
E
Easter, L.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Eckel, L.
- PediatricsYou have accessMixed Solid and Cystic Mass in an InfantJ.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. MorrisAmerican Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
Eckert, M.A.
- EDITOR'S CHOICEAdult BrainOpen AccessProlonged Microgravity Affects Human Brain Structure and FunctionD.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. BrownAmerican 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.
Edeiken-Monroe, B.
- Head & NeckYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
Edwards, P.K.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Escott, E.J.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
F
Fan, Q.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Feigal, D.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
Felton, E.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Feng, F.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Fletcher, J.G.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Flood, T.F.
- PediatricsYou have accessAge-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR ImagingT.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. MirskyAmerican Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
Fornage, B.D.
- Head & NeckYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
Fouladi, M.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
G
Gagoski, B.
- EDITOR'S CHOICEPediatricsYou have accessComparison 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 MoyamoyaD.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. RobertsonAmerican 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.
Ganesh, H.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
Gao, S.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Gautam, A.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
George, M.S.
- EDITOR'S CHOICEAdult BrainOpen AccessProlonged Microgravity Affects Human Brain Structure and FunctionD.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. BrownAmerican 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.
Goschzik, T.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Grant, P.E.
- EDITOR'S CHOICEPediatricsYou have accessComparison 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 MoyamoyaD.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. RobertsonAmerican 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.
Grayev, A.M.
- SpineYou have accessUnintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine ImagingD.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. KunerAmerican Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
Grevent, D.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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.
Groenendaal, F.
- PediatricsOpen AccessSignal Change in the Mammillary Bodies after Perinatal AsphyxiaM. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. LequinAmerican Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
Guenette, J.P.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
Guerin, J.B.
- PediatricsYou have accessMixed Solid and Cystic Mass in an InfantJ.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. MorrisAmerican Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
Guglielmi, Guido
- You have accessPerspectivesGuido GuglielmiAmerican Journal of Neuroradiology November 2019, 40 (11) 1791; DOI: https://doi.org/10.3174/ajnr.P0072
Gule-Monroe, M.
- Head & NeckYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
H
Hara, S.
- Adult BrainOpen AccessBayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value DecompositionS. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. NariaiAmerican Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
Hartman, A.L.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Hayashi, S.
- Adult BrainOpen AccessBayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value DecompositionS. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. NariaiAmerican Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
Heier, L.A.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Hicks, D.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Hirsch, J.A.
- FELLOWS' JOURNAL CLUBSpineYou have accessArmed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst FracturesA. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. CianfoniAmerican 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.
Holmes, D.R.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Hori, M.
- Adult BrainOpen AccessBayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value DecompositionS. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. NariaiAmerican Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
Hsu, F.-C.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Huang, R.Y.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
Huang, S.Y.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Hwang, E.I.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
I
Inaji, M.
- Adult BrainOpen AccessBayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value DecompositionS. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. NariaiAmerican Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
Inglesby, D.C.
- EDITOR'S CHOICEAdult BrainOpen AccessProlonged Microgravity Affects Human Brain Structure and FunctionD.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. BrownAmerican 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.
Isalberti, M.
- FELLOWS' JOURNAL CLUBSpineYou have accessArmed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst FracturesA. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. CianfoniAmerican 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.
Ishii, K.
- Adult BrainOpen AccessBayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value DecompositionS. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. NariaiAmerican Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
J
Jaju, A.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Jandeaux, C.
- PediatricsYou have accessBiometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 ChildrenC. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-AresAmerican Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
Jayender, J.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
Jensen, A.
- PediatricsYou have accessAge-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR ImagingT.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. MirskyAmerican Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
Jing, L.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
Johnson, M.P.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Jordan, C.D.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Jung, Y.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
K
Kass, J.I.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
Kim, B.-S.
- InterventionalYou have accessThe Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment ModalitiesD.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. ShinAmerican Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
Kim, C.J.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
Kim, N.Y.
- SpineYou have accessUnintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine ImagingD.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. KunerAmerican Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
Kimbrell, V.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
Klawiter, E.C.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Kline, C.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Kool, M.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Kossoff, E.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Kotsenas, A.L.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Kuchcinski, G.
- PediatricsYou have accessBiometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 ChildrenC. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-AresAmerican Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
Kuhlen, D.E.
- FELLOWS' JOURNAL CLUBSpineYou have accessArmed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst FracturesA. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. CianfoniAmerican 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.
Kuner, A.D.
- SpineYou have accessUnintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine ImagingD.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. KunerAmerican Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
Kun Kim, D.
- PediatricsYou have accessMixed Solid and Cystic Mass in an InfantJ.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. MorrisAmerican Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
Kwon, M.
- Head & NeckYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
L
Laine, M.
- PediatricsYou have accessSusceptibility-Weighted Imaging Findings in AspartylglucosaminuriaA. Tokola, M. Laine, R. Tikkanen and T. AuttiAmerican Journal of Neuroradiology November 2019, 40 (11) 1850-1854; DOI: https://doi.org/10.3174/ajnr.A6288
Leclerc, X.
- PediatricsYou have accessBiometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 ChildrenC. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-AresAmerican Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
Lee, T.C.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
Lehman, V.T.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Leng, S.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Lequin, M.
- PediatricsOpen AccessSignal Change in the Mammillary Bodies after Perinatal AsphyxiaM. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. LequinAmerican Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
Levy, R.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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.
Li, M.-L.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Li, R.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
Li, W.
- EDITOR'S CHOICEInterventionalOpen AccessHemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control StudyW. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. LiuAmerican 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.
Li, Y.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Liebeskind, D.S.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Lin, D.D.M.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Liu, J.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
- EDITOR'S CHOICEInterventionalOpen AccessHemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control StudyW. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. LiuAmerican 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.
Liu, M.-W.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Liu, T.-F.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
Lou, X.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
Lozach, C.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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
Ma, L.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
Machado, N.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Maehara, T.
- Adult BrainOpen AccessBayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value DecompositionS. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. NariaiAmerican Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
Maloney, J.A.
- PediatricsYou have accessAge-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR ImagingT.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. MirskyAmerican Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
Mamourian, A.
- LETTERYou have accessImpact on Quality of Neuroradiology Interpretations by CaseloadA. MamourianAmerican Journal of Neuroradiology November 2019, 40 (11) E64; DOI: https://doi.org/10.3174/ajnr.A6229
McCollough, C.H.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Meng, H.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
Michalak, G.J.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Mirsky, D.M.
- PediatricsYou have accessAge-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR ImagingT.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. MirskyAmerican Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
Molavi, M.
- PediatricsOpen AccessSignal Change in the Mammillary Bodies after Perinatal AsphyxiaM. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. LequinAmerican Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
Morris, P.
- PediatricsYou have accessMixed Solid and Cystic Mass in an InfantJ.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. MorrisAmerican Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
Mueller, S.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Mynarek, M.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
N
Naggara, O.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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.
Nariai, T.
- Adult BrainOpen AccessBayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value DecompositionS. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. NariaiAmerican Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
Ngamsombat, C.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Nicolas, N.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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.
Nietert, P.J.
- EDITOR'S CHOICEAdult BrainOpen AccessProlonged Microgravity Affects Human Brain Structure and FunctionD.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. BrownAmerican 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.
Nummenmaa, A.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
O
Ocal, O.
- InterventionalYou have accessPlacement of a Stent within a Flow Diverter Improves Aneurysm Occlusion RatesO. Ocal, A. Peker, S. Balci and A. AratAmerican Journal of Neuroradiology November 2019, 40 (11) 1932-1938; DOI: https://doi.org/10.3174/ajnr.A6237
Olson, J.M.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Orbach, D.B.
- EDITOR'S CHOICEPediatricsYou have accessComparison 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 MoyamoyaD.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. RobertsonAmerican 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.
Otto, B.J.
- SpineYou have accessUnintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine ImagingD.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. KunerAmerican Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
P
Packer, R.J.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
Park, Y.K.
- InterventionalYou have accessThe Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment ModalitiesD.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. ShinAmerican Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
Peker, A.
- InterventionalYou have accessPlacement of a Stent within a Flow Diverter Improves Aneurysm Occlusion RatesO. Ocal, A. Peker, S. Balci and A. AratAmerican Journal of Neuroradiology November 2019, 40 (11) 1932-1938; DOI: https://doi.org/10.3174/ajnr.A6237
Pfister, S.M.
- PediatricsOpen AccessMRI 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 TrialA. 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. HeierAmerican Journal of Neuroradiology November 2019, 40 (11) 1796-1803; DOI: https://doi.org/10.3174/ajnr.A6253
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Pham, M.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Pietsch, T.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Pruvo, J.-P.
- PediatricsYou have accessBiometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 ChildrenC. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-AresAmerican Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
R
Rajabzadeh-Oghaz, H.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
Raslau, F.D.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
Reinert, M.
- FELLOWS' JOURNAL CLUBSpineYou have accessArmed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst FracturesA. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. CianfoniAmerican 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.
Riquet, A.
- PediatricsYou have accessBiometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 ChildrenC. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-AresAmerican Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
Roberts, D.R.
- EDITOR'S CHOICEAdult BrainOpen AccessProlonged Microgravity Affects Human Brain Structure and FunctionD.R. Roberts, D. Asemani, P.J. Nietert, M.A. Eckert, D.C. Inglesby, J.J. Bloomberg, M.S. George and T.R. BrownAmerican 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.
Robertson, R.L.
- EDITOR'S CHOICEPediatricsYou have accessComparison 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 MoyamoyaD.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. RobertsonAmerican 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.
Roccatagliata, L.
- FELLOWS' JOURNAL CLUBSpineYou have accessArmed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst FracturesA. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. CianfoniAmerican 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.
Rosen, B.R.
- EDITOR'S CHOICEPediatricsYou have accessComparison 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 MoyamoyaD.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. RobertsonAmerican 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.
Roux, C.-J.
- FELLOWS' JOURNAL CLUBPediatricsYou have accessIncidental Brain MRI Findings in Children: A Systematic Review and Meta-AnalysisV. Dangouloff-Ros, C.-J. Roux, G. Boulouis, R. Levy, N. Nicolas, C. Lozach, D. Grevent, F. Brunelle, N. Boddaert and O. NaggaraAmerican 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.
Russo, A.W.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Rutkowski, S.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
S
Salman, M.
- EditorialYou have accessTime to Discontinue Use of the Term “Hemorrhagic Stroke”M. Aftab and M. SalmanAmerican Journal of Neuroradiology November 2019, 40 (11) 1893; DOI: https://doi.org/10.3174/ajnr.A6240
Scalzo, F.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Scarone, P.
- FELLOWS' JOURNAL CLUBSpineYou have accessArmed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst FracturesA. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. CianfoniAmerican 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.
Schreck, K.C.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Schwalbe, E.C.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Seethamraju, R.T.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
Shi, P.-A.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
Shimizu, A.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
Shin, Y.S.
- InterventionalYou have accessThe Fate of Unruptured Intracranial Vertebrobasilar Dissecting Aneurysm with Brain Stem Compression According to Different Treatment ModalitiesD.Y. Cho, B.-S. Kim, J.H. Choi, Y.K. Park and Y.S. ShinAmerican Journal of Neuroradiology November 2019, 40 (11) 1924-1931; DOI: https://doi.org/10.3174/ajnr.A6252
Siddiqui, A.H.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
Smiley, J.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
Smith, E.
- EDITOR'S CHOICEPediatricsYou have accessComparison 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 MoyamoyaD.S. Bolar, B. Gagoski, D.B. Orbach, E. Smith, E. Adalsteinsson, B.R. Rosen, P.E. Grant and R.L. RobertsonAmerican 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.
Solomon, D.A.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Soto-Ares, G.
- PediatricsYou have accessBiometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 ChildrenC. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-AresAmerican Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
Stence, N.V.
- PediatricsYou have accessAge-Dependent Signal Intensity Changes in the Structurally Normal Pediatric Brain on Unenhanced T1-Weighted MR ImagingT.F. Flood, P.R. Bhatt, A. Jensen, J.A. Maloney, N.V. Stence and D.M. MirskyAmerican Journal of Neuroradiology November 2019, 40 (11) 1824-1828; DOI: https://doi.org/10.3174/ajnr.A6254
Stock, A.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Strowd, R.E.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Sturm, D.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Sugiyama, S.-I.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
Summerfield, D.
- PediatricsYou have accessMixed Solid and Cystic Mass in an InfantJ.C. Benson, D. Summerfield, J.B. Guerin, D. Kun Kim, L. Eckel, D.J. Daniels and P. MorrisAmerican Journal of Neuroradiology November 2019, 40 (11) 1792-1795; DOI: https://doi.org/10.3174/ajnr.A6226
Sun, J.
- Head & NeckYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
T
Tamrazi, B.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Tanaka, Y.
- Adult BrainOpen AccessBayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value DecompositionS. Hara, Y. Tanaka, S. Hayashi, M. Inaji, T. Maehara, M. Hori, S. Aoki, K. Ishii and T. NariaiAmerican Journal of Neuroradiology November 2019, 40 (11) 1894-1900; DOI: https://doi.org/10.3174/ajnr.A6248
Ternynck, C.
- PediatricsYou have accessBiometry of the Cerebellar Vermis and Brain Stem in Children: MR Imaging Reference Data from Measurements in 718 ChildrenC. Jandeaux, G. Kuchcinski, C. Ternynck, A. Riquet, X. Leclerc, J.-P. Pruvo and G. Soto-AresAmerican Journal of Neuroradiology November 2019, 40 (11) 1835-1841; DOI: https://doi.org/10.3174/ajnr.A6257
Tian, Q.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Tian, Z.
- EDITOR'S CHOICEInterventionalOpen AccessHemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control StudyW. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. LiuAmerican 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.
Tikkanen, R.
- PediatricsYou have accessSusceptibility-Weighted Imaging Findings in AspartylglucosaminuriaA. Tokola, M. Laine, R. Tikkanen and T. AuttiAmerican Journal of Neuroradiology November 2019, 40 (11) 1850-1854; DOI: https://doi.org/10.3174/ajnr.A6288
Tokola, A.
- PediatricsYou have accessSusceptibility-Weighted Imaging Findings in AspartylglucosaminuriaA. Tokola, M. Laine, R. Tikkanen and T. AuttiAmerican Journal of Neuroradiology November 2019, 40 (11) 1850-1854; DOI: https://doi.org/10.3174/ajnr.A6288
Tong, E.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Tran, N.-A.
- Head & NeckOpen AccessMR Imaging of the Extracranial Facial Nerve with the CISS SequenceJ.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. LeeAmerican Journal of Neuroradiology November 2019, 40 (11) 1954-1959; DOI: https://doi.org/10.3174/ajnr.A6261
V
Vann, S.D.
- PediatricsOpen AccessSignal Change in the Mammillary Bodies after Perinatal AsphyxiaM. Molavi, S.D. Vann, L.S. de Vries, F. Groenendaal and M. LequinAmerican Journal of Neuroradiology November 2019, 40 (11) 1829-1834; DOI: https://doi.org/10.3174/ajnr.A6232
Varble, N.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
Vardapetyan, A.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Venier, A.
- FELLOWS' JOURNAL CLUBSpineYou have accessArmed Kyphoplasty: An Indirect Central Canal Decompression Technique in Burst FracturesA. Venier, L. Roccatagliata, M. Isalberti, P. Scarone, D.E. Kuhlen, M. Reinert, G. Bonaldi, J.A. Hirsch and A. CianfoniAmerican 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.
Villablanca, J.P.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Vu, T.H.
- Head & NeckYou have accessDiagnostic Accuracy and Scope of Intraoperative Transoral Ultrasound and Transoral Ultrasound–Guided Fine-Needle Aspiration of Retropharyngeal MassesT.H. Vu, M. Kwon, S. Ahmed, M. Gule-Monroe, M.M. Chen, J. Sun, B.D. Fornage, J.M. Debnam and B. Edeiken-MonroeAmerican Journal of Neuroradiology November 2019, 40 (11) 1960-1964; DOI: https://doi.org/10.3174/ajnr.A6236
W
Wald, L.L.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Wang, C.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
Wang, J.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
Wang, K.
- EDITOR'S CHOICEInterventionalOpen AccessHemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control StudyW. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. LiuAmerican 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.
Wang, Y.
- EDITOR'S CHOICEInterventionalOpen AccessHemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control StudyW. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. LiuAmerican 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.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
Wang, Y.-L.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
Warmuth-Metz, M.
- PediatricsYou have accessImaging Characteristics of Wingless Pathway Subgroup Medulloblastomas: Results from the German HIT/SIOP-Trial CohortA. 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-MetzAmerican Journal of Neuroradiology November 2019, 40 (11) 1811-1817; DOI: https://doi.org/10.3174/ajnr.A6286
Wayer, D.R.
- SpineYou have accessUnintended Consequences: Review of New Artifacts Introduced by Iterative Reconstruction CT Metal Artifact Reduction in Spine ImagingD.R. Wayer, N.Y. Kim, B.J. Otto, A.M. Grayev and A.D. KunerAmerican Journal of Neuroradiology November 2019, 40 (11) 1973-1975; DOI: https://doi.org/10.3174/ajnr.A6238
Weinberg, B.
- PediatricsOpen AccessDiffusion Characteristics of Pediatric Diffuse Midline Gliomas with Histone H3-K27M Mutation Using Apparent Diffusion Coefficient Histogram AnalysisM.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. ChaAmerican Journal of Neuroradiology November 2019, 40 (11) 1804-1810; DOI: https://doi.org/10.3174/ajnr.A6302
Whitlow, C.T.
- Adult BrainOpen AccessCerebral Ketones Detected by 3T MR Spectroscopy in Patients with High-Grade Glioma on an Atkins-Based DietA. 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. StrowdAmerican Journal of Neuroradiology November 2019, 40 (11) 1908-1915; DOI: https://doi.org/10.3174/ajnr.A6287
Witzel, T.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Wu, K.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
X
Xiao, H.-F.
- Adult BrainYou have accessRole of 3D Pseudocontinuous Arterial Spin-Labeling Perfusion in the Diagnosis and Follow-Up in Patients with Herpes Simplex EncephalitisR. 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. LouAmerican Journal of Neuroradiology November 2019, 40 (11) 1901-1907; DOI: https://doi.org/10.3174/ajnr.A6279
Xu, W.-H.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Xu, Y.-Y.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Y
Yang, X.
- InterventionalOpen AccessNovel Models for Identification of the Ruptured Aneurysm in Patients with Subarachnoid Hemorrhage with Multiple AneurysmsH. 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. MengAmerican Journal of Neuroradiology November 2019, 40 (11) 1939-1946; DOI: https://doi.org/10.3174/ajnr.A6259
- EDITOR'S CHOICEInterventionalOpen AccessHemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control StudyW. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. LiuAmerican 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.
Yu, F.
- Adult BrainOpen AccessImaging G-Ratio in Multiple Sclerosis Using High-Gradient Diffusion MRI and Macromolecular Tissue VolumeF. 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. HuangAmerican Journal of Neuroradiology November 2019, 40 (11) 1871-1877; DOI: https://doi.org/10.3174/ajnr.A6283
Yu, L.
- FELLOWS' JOURNAL CLUBPatient SafetyOpen AccessEvaluation of Lower-Dose Spiral Head CT for Detection of Intracranial Findings Causing Neurologic DeficitsJ.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. McColloughAmerican 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.
Yu, Y.-N.
- Adult BrainOpen AccessMiddle Cerebral Artery Plaque Hyperintensity on T2-Weighted Vessel Wall Imaging Is Associated with Ischemic StrokeY.-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. XuAmerican Journal of Neuroradiology November 2019, 40 (11) 1886-1892; DOI: https://doi.org/10.3174/ajnr.A6260
Yzet, T.
- InterventionalYou have accessTransitioning to Transradial Access for Cerebral Aneurysm EmbolizationC. Chivot, R. Bouzerar and T. YzetAmerican Journal of Neuroradiology November 2019, 40 (11) 1947-1953; DOI: https://doi.org/10.3174/ajnr.A6234
Z
Zhang, J.
- Patient SafetyYou have accessDose Reduction While Preserving Diagnostic Quality in Head CT: Advancing the Application of Iterative Reconstruction Using a Live Animal ModelF.D. Raslau, E.J. Escott, J. Smiley, C. Adams, D. Feigal, H. Ganesh, C. Wang and J. ZhangAmerican Journal of Neuroradiology November 2019, 40 (11) 1864-1870; DOI: https://doi.org/10.3174/ajnr.A6258
Zhang, Y.
- EDITOR'S CHOICEInterventionalOpen AccessHemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control StudyW. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. LiuAmerican 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.
Zhang, Y.S.
- EDITOR'S CHOICEInterventionalOpen AccessHemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control StudyW. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. LiuAmerican 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.
Zhu, W.
- EDITOR'S CHOICEInterventionalOpen AccessHemodynamic Analysis of Postoperative Rupture of Unruptured Intracranial Aneurysms after Placement of Flow-Diverting Stents: A Matched Case-Control StudyW. Li, Z. Tian, W. Zhu, Y.S. Zhang, K. Wang, Y. Zhang, Y. Wang, X. Yang and J. LiuAmerican 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.