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Table of Contents

August 01, 2016; Volume 37,Issue 8

Perspectives

  • You have access
    Perspectives
    Bejoy Thomas
    American Journal of Neuroradiology August 2016, 37 (8) 1383; DOI: https://doi.org/10.3174/ajnr.P0019

Review Article

  • ADULT BRAIN
    Open Access
    Imaging of Neurovascular Compression Syndromes: Trigeminal Neuralgia, Hemifacial Spasm, Vestibular Paroxysmia, and Glossopharyngeal Neuralgia
    S. Haller, L. Etienne, E. Kövari, A.D. Varoquaux, H. Urbach and M. Becker
    American Journal of Neuroradiology August 2016, 37 (8) 1384-1392; DOI: https://doi.org/10.3174/ajnr.A4683

General Contents

  • FELLOWS' JOURNAL CLUBADULT BRAIN
    Open Access
    Multimodal CT Imaging: Time to Treatment and Outcomes in the IMS III Trial
    A. Vagal, L.D. Foster, B. Menon, A. Livorine, J. Shi, E. Qazi, S.D. Yeatts, A.M. Demchuk, M.D. Hill, T.A. Tomsick and M. Goyal
    American Journal of Neuroradiology August 2016, 37 (8) 1393-1398; DOI: https://doi.org/10.3174/ajnr.A4751

    The authors explored the effect of multimodal imaging (CT perfusion and/or CT angiography) versus noncontrast CT alone on time to treatment and outcomes in the IMS III trial. Of 656 subjects enrolled in the trial, 90 (13.7%) received CTP and CTA, 216 (32.9%) received CTA (without CTP), and 342 (52.1%) received NCCT alone. Median times from stroke onset to IV tPA in the CTP+CTA, CTA, and NCCT groups were 120.5 vs 117.5 vs 120 minutes, respectively. They conclude that the use of CTA (with or without CTP) did not delay IV tPA or endovascular therapy compared with NCCT in the IMS III trial.

  • ADULT BRAIN
    You have access
    Performance of CT ASPECTS and Collateral Score in Risk Stratification: Can Target Perfusion Profiles Be Predicted without Perfusion Imaging?
    S. Dehkharghani, R. Bammer, M. Straka, M. Bowen, J.W. Allen, S. Rangaraju, J. Kang, T. Gleason, C. Brasher and F. Nahab
    American Journal of Neuroradiology August 2016, 37 (8) 1399-1404; DOI: https://doi.org/10.3174/ajnr.A4727
  • ADULT BRAIN
    You have access
    MR Imaging in Spinocerebellar Ataxias: A Systematic Review
    A. Klaes, E. Reckziegel, M.C. Franca, T.J.R. Rezende, L.M. Vedolin, L.B. Jardim and J.A. Saute
    American Journal of Neuroradiology August 2016, 37 (8) 1405-1412; DOI: https://doi.org/10.3174/ajnr.A4760
  • ADULT BRAIN
    You have access
    Geometric Parameter Analysis of Ruptured and Unruptured Aneurysms in Patients with Symmetric Bilateral Intracranial Aneurysms: A Multicenter CT Angiography Study
    Z.-Q. Huang, Z.-H. Meng, Z.-J. Hou, S.-Q. Huang, J.-N. Chen, H. Yu, L.-J. Feng, Q.-J. Wang, P.-A. Li and Z.-B. Wen
    American Journal of Neuroradiology August 2016, 37 (8) 1413-1417; DOI: https://doi.org/10.3174/ajnr.A4764
  • ADULT BRAIN
    You have access
    MRI Appearance of Intracerebral Iodinated Contrast Agents: Is It Possible to Distinguish Extravasated Contrast Agent from Hemorrhage?
    O. Nikoubashman, F. Jablawi, S. Dekeyzer, A.M. Oros-Peusquens, Z. Abbas, J. Lindemeyer, A.E. Othman, N.J. Shah and M. Wiesmann
    American Journal of Neuroradiology August 2016, 37 (8) 1418-1421; DOI: https://doi.org/10.3174/ajnr.A4755
  • ADULT BRAIN
    You have access
    Prevalence of Intracranial Aneurysms in Patients with Connective Tissue Diseases: A Retrospective Study
    S.T. Kim, W. Brinjikji and D.F. Kallmes
    American Journal of Neuroradiology August 2016, 37 (8) 1422-1426; DOI: https://doi.org/10.3174/ajnr.A4718
  • FELLOWS' JOURNAL CLUBADULT BRAIN
    You have access
    T1 Signal-Intensity Increase in the Dentate Nucleus after Multiple Exposures to Gadodiamide: Intraindividual Comparison between 2 Commonly Used Sequences
    J. Ramalho, M. Ramalho, M. AlObaidy, R.H. Nunes, M. Castillo and R.C. Semelka
    American Journal of Neuroradiology August 2016, 37 (8) 1427-1431; DOI: https://doi.org/10.3174/ajnr.A4757

    The authors performed intraindividual qualitative and quantitative comparison between T1-weighted spin-echo and 3D MPRAGE images in 18 patients who had multiple exposures to gadodiamide. Differences in signal between the 2 sequences for both baseline and last examination dentate nucleus/middle cerebellar peduncle ratios were statistically significant. They conclude that T1-weighted spin-echo and MPRAGE sequences cannot be used interchangeably for qualitative or quantitative signal intensity analysis of the dentate nucleus in patients who received gadodiamide.

  • ADULT BRAIN
    Open Access
    Characteristics of Diffusional Kurtosis in Chronic Ischemia of Adult Moyamoya Disease: Comparing Diffusional Kurtosis and Diffusion Tensor Imaging
    K. Kazumata, K.K. Tha, H. Narita, Y.M. Ito, H. Shichinohe, M. Ito, H. Uchino and T. Abumiya
    American Journal of Neuroradiology August 2016, 37 (8) 1432-1439; DOI: https://doi.org/10.3174/ajnr.A4728
  • EDITOR'S CHOICEADULT BRAIN
    Open Access
    Improved Leakage Correction for Single-Echo Dynamic Susceptibility Contrast Perfusion MRI Estimates of Relative Cerebral Blood Volume in High-Grade Gliomas by Accounting for Bidirectional Contrast Agent Exchange
    K. Leu, J.L. Boxerman, T.F. Cloughesy, A. Lai, P.L. Nghiemphu, L.M. Liau, W.B. Pope and B.M. Ellingson
    American Journal of Neuroradiology August 2016, 37 (8) 1440-1446; DOI: https://doi.org/10.3174/ajnr.A4759

    The authors' hypothesis is that incorporating bidirectional contrast agent transport into the DSC MR imaging signal model will improve rCBV estimates in brain tumors. A unidirectional contrast agent extravasation model (Boxerman-Weisskoff) was compared with a bidirectional contrast agent exchange model. For both models, they compared the goodness of fit with the parent leakage-contaminated relaxation rate curves and the difference between modeled interstitial relaxation rate curves and dynamic contrast-enhanced MR imaging in 21 patients with glioblastoma. The authors conclude that the bidirectional model more accurately corrects for the T1 or T2* enhancement arising from contrast agent extravasation due to blood-brain barrier disruption in high-grade gliomas by incorporating interstitial washout rates into the DSC MR imaging relaxation rate model.

  • ADULT BRAIN
    Open Access
    Lesion Heterogeneity on High-Field Susceptibility MRI Is Associated with Multiple Sclerosis Severity
    D.M. Harrison, X. Li, H. Liu, C.K. Jones, B. Caffo, P.A. Calabresi and P. van Zijl
    American Journal of Neuroradiology August 2016, 37 (8) 1447-1453; DOI: https://doi.org/10.3174/ajnr.A4726
  • EDITOR'S CHOICEADULT BRAIN
    Open Access
    Cortical Perfusion Alteration in Normal-Appearing Gray Matter Is Most Sensitive to Disease Progression in Relapsing-Remitting Multiple Sclerosis
    S.-P. Hojjat, M. Kincal, R. Vitorino, C.G. Cantrell, A. Feinstein, L. Zhang, L. Lee, P. O'Connor, T.J. Carroll and R.I. Aviv
    American Journal of Neuroradiology August 2016, 37 (8) 1454-1461; DOI: https://doi.org/10.3174/ajnr.A4737

    Bookend perfusion was used to quantify parameters in normal-appearing and lesional tissue at different relapsing-remitting MS stages in 39 patients and 19 age-matched healthy controls. Perfusion parameters such as CBF, CBV, and MTT were compared along with cognitive performance. White matter lesion but not cortical lesion perfusion was significantly reduced in cognitively impaired patients with relapsing-remitting MS versus unimpaired patients with relapsing-remitting MS. Perfusion reduction with disease progression was greater in normal-appearing gray matter and normal-appearing white matter compared with cortical lesions and white matter lesions. The authors conclude that the greatest changes are present within NAGM and NAWM, necessitating absolute rather than relative lesion perfusion measurement.

  • ADULT BRAIN
    Open Access
    A Diffusion Tensor Imaging Study on White Matter Abnormalities in Patients with Type 2 Diabetes Using Tract-Based Spatial Statistics
    Y. Xiong, Y. Sui, Z. Xu, Q. Zhang, M.M. Karaman, K. Cai, T.M. Anderson, W. Zhu, J. Wang and X.J. Zhou
    American Journal of Neuroradiology August 2016, 37 (8) 1462-1469; DOI: https://doi.org/10.3174/ajnr.A4740
  • EDITOR'S CHOICEADULT BRAIN
    Open Access
    Electrophysiologic Validation of Diffusion Tensor Imaging Tractography during Deep Brain Stimulation Surgery
    V.A. Coenen, C. Jenkner, C.R. Honey and B. Mädler
    American Journal of Neuroradiology August 2016, 37 (8) 1470-1478; DOI: https://doi.org/10.3174/ajnr.A4753

    Eleven patients underwent subthalamic nucleus deep brain stimulation. DTI and high-resolution T1- and T2-weighted MRI were performed at 3T. The electrode positions and current amplitudes that elicited corticospinal tract effects during the operation were studied to determine relative corticospinal tract distance. The mean intraoperative electrophysiologic corticospinal tract distance was 3.0 mm +/- 0.6 mm; the mean image-derived corticospinal tract distance (DTI fiber tractography) was 3.0 mm +/- 1.3 mm. DTI fiber tractography depicted the medial corticospinal border in concordance with electrophysiology under 2 different conditions and modeling approaches. Under both conditions, the electrophysiologic measurements were clearly related to the DTI fiber tractography.

  • ADULT BRAIN
    You have access
    Neurovascular Manifestations of Hereditary Hemorrhagic Telangiectasia: A Consecutive Series of 376 Patients during 15 Years
    W. Brinjikji, V.N. Iyer, V. Yamaki, G. Lanzino, H.J. Cloft, K.R. Thielen, K.L. Swanson and C.P. Wood
    American Journal of Neuroradiology August 2016, 37 (8) 1479-1486; DOI: https://doi.org/10.3174/ajnr.A4762
  • ADULT BRAIN
    Open Access
    Reduced Myelin Water in the White Matter Tracts of Patients with Niemann-Pick Disease Type C
    J. Davies-Thompson, I. Vavasour, M. Scheel, A. Rauscher and J.J.S. Barton
    American Journal of Neuroradiology August 2016, 37 (8) 1487-1489; DOI: https://doi.org/10.3174/ajnr.A4719
  • INTERVENTIONAL
    You have access
    Fate of Coiled Aneurysms with Minor Recanalization at 6 Months: Rate of Progression to Further Recanalization and Related Risk Factors
    J.P. Jeon, Y.D. Cho, J.K. Rhim, D.H. Yoo, W.-S. Cho, H.-S. Kang, J.E. Kim and M.H. Han
    American Journal of Neuroradiology August 2016, 37 (8) 1490-1495; DOI: https://doi.org/10.3174/ajnr.A4763
  • EXTRACRANIAL VASCULAR
    You have access
    Prediction of Carotid Intraplaque Hemorrhage Using Adventitial Calcification and Plaque Thickness on CTA
    L.B. Eisenmenger, B.W. Aldred, S.-E. Kim, G.J. Stoddard, A. de Havenon, G.S. Treiman, D.L. Parker and J.S. McNally
    American Journal of Neuroradiology August 2016, 37 (8) 1496-1503; DOI: https://doi.org/10.3174/ajnr.A4765
  • HEAD & NECK
    You have access
    Do Radiologists Report the TNM Staging in Radiology Reports for Head and Neck Cancers? A National Survey Study
    B. Ko, U. Parvathaneni, P.A. Hudgins and Y. Anzai
    American Journal of Neuroradiology August 2016, 37 (8) 1504-1509; DOI: https://doi.org/10.3174/ajnr.A4742
  • HEAD & NECK
    Open Access
    Reduced Field-of-View Diffusion Tensor Imaging of the Optic Nerve in Retinitis Pigmentosa at 3T
    Y. Zhang, X. Guo, M. Wang, L. Wang, Q. Tian, D. Zheng and D. Shi
    American Journal of Neuroradiology August 2016, 37 (8) 1510-1515; DOI: https://doi.org/10.3174/ajnr.A4767
  • PEDIATRICS
    You have access
    A New Ultrasound Marker for Bedside Monitoring of Preterm Brain Growth
    J.A. Roelants, I.V. Koning, M.M.A. Raets, S.P. Willemsen, M.H. Lequin, R.P.M. Steegers-Theunissen, I.K.M. Reiss, M.J. Vermeulen, P. Govaert and J. Dudink
    American Journal of Neuroradiology August 2016, 37 (8) 1516-1522; DOI: https://doi.org/10.3174/ajnr.A4731
  • PEDIATRICS
    Open Access
    MR Imaging of the Pituitary Gland and Postsphenoid Ossification in Fetal Specimens
    T.M. Mehemed, Y. Fushimi, T. Okada, M. Kanagaki, A. Yamamoto, T. Okada, T. Takakuwa, S. Yamada and K. Togashi
    American Journal of Neuroradiology August 2016, 37 (8) 1523-1527; DOI: https://doi.org/10.3174/ajnr.A4808
  • PEDIATRICS
    You have access
    Quiet T1-Weighted Pointwise Encoding Time Reduction with Radial Acquisition for Assessing Myelination in the Pediatric Brain
    N. Aida, T. Niwa, Y. Fujii, K. Nozawa, M. Enokizono, K. Murata and T. Obata
    American Journal of Neuroradiology August 2016, 37 (8) 1528-1534; DOI: https://doi.org/10.3174/ajnr.A4747
  • PEDIATRICS
    You have access
    Cranial Ultrasonography in Infantile Encephalitic Beriberi: A Useful First-Line Imaging Tool for Screening and Diagnosis in Suspected Cases
    N.A. Wani, U.A. Qureshi, K. Ahmad and N.A. Choh
    American Journal of Neuroradiology August 2016, 37 (8) 1535-1540; DOI: https://doi.org/10.3174/ajnr.A4756
  • PEDIATRICS
    You have access
    Spectrum of Clinical and Associated MR Imaging Findings in Children with Olfactory Anomalies
    T.N. Booth and N.K. Rollins
    American Journal of Neuroradiology August 2016, 37 (8) 1541-1548; DOI: https://doi.org/10.3174/ajnr.A4738
  • PEDIATRICS
    You have access
    Reduction of Oxygen-Induced CSF Hyperintensity on FLAIR MR Images in Sedated Children: Usefulness of Magnetization-Prepared FLAIR Imaging
    H.-K. Jeong, S.W. Oh, J. Kim, S.-K. Lee and S.J. Ahn
    American Journal of Neuroradiology August 2016, 37 (8) 1549-1555; DOI: https://doi.org/10.3174/ajnr.A4723
  • SPINE
    You have access
    Effect of the Suboccipital Musculature on Symptom Severity and Recovery after Mild Traumatic Brain Injury
    S. Fakhran, C. Qu and L.M. Alhilali
    American Journal of Neuroradiology August 2016, 37 (8) 1556-1560; DOI: https://doi.org/10.3174/ajnr.A4730
  • FELLOWS' JOURNAL CLUBSPINE
    You have access
    Evaluation of Focal Cervical Spinal Cord Lesions in Multiple Sclerosis: Comparison of White Matter–Suppressed T1 Inversion Recovery Sequence versus Conventional STIR and Proton Density–Weighted Turbo Spin-Echo Sequences
    D.K. Sundarakumar, C.M. Smith, W.D. Hwang, M. Mossa-Basha and K.R. Maravilla
    American Journal of Neuroradiology August 2016, 37 (8) 1561-1566; DOI: https://doi.org/10.3174/ajnr.A4761

    The authors performed a retrospective blinded analysis of cervical cord MR imaging examinations of 50 patients with MS. In each patient, 2 neuroradiologists measured the number of focal lesions and overall lesion conspicuity in the STIR/proton density–weighted TSE and WM-suppressed T1 inversion recovery sequence groups. Substantial interreader agreement was noted on the WM-suppressed T1 inversion recovery sequence compared with STIR/proton density–weighted TSE. Average lesion conspicuity was better on the WM-suppressed T1 inversion recovery sequence. Additionally, spurious lesions were more common on STIR/proton density–weighted TSE than on the WM-suppressed T1 inversion recovery sequence. They conclude that the WM-suppressed T1 inversion recovery sequence could potentially be substituted for either STIR or proton density–weighted TSE sequences in routine clinical protocols.

  • SPINE
    You have access
    SAPHO Syndrome: Imaging Findings of Vertebral Involvement
    A.M. McGauvran, A.L. Kotsenas, F.E. Diehn, J.T. Wald, C.M. Carr and J.M. Morris
    American Journal of Neuroradiology August 2016, 37 (8) 1567-1572; DOI: https://doi.org/10.3174/ajnr.A4736
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American Journal of Neuroradiology: 37 (8)
American Journal of Neuroradiology
Vol. 37, Issue 8
1 Aug 2016
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