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Index by author

September 01, 2018; Volume 39,Issue 9

  1. Seeburg, D.P.

    1. FELLOWS' JOURNAL CLUBHead and Neck Imaging
      Contrast-Enhanced CISS Imaging for Evaluation of Neurovascular Compression in Trigeminal Neuralgia: Improved Correlation with Symptoms and Prediction of Surgical Outcomes
      A.M. Blitz, B. Northcutt, J. Shin, N. Aygun, D.A. Herzka, D. Theodros, C.R. Goodwin, M. Lim and D.P. Seeburg
      American Journal of Neuroradiology September 2018, 39 (9) 1724-1732; DOI: https://doi.org/10.3174/ajnr.A5743

      Retrospective review of high-resolution MRIs was performed in patients without prior microvascular decompression. 3D-CISS imaging without and with contrast for 81 patients with trigeminal neuralgia and 15 controls was intermixed and independently reviewed in a blinded fashion. Cisternal segments of both trigeminal nerves were assessed for the grade of neurovascular conflict, cross-sectional area, and degree of flattening. Contrast-enhanced CISS more than doubled the prevalence of the highest grade of neurovascular conflict (14.8% versus 33.3%) and yielded significantly lower cross-sectional area and greater degree of flattening for advanced-grade neurovascular conflict on the symptomatic side compared with non-contrast-enhanced CISS.

  2. Seifert, K.

    1. Blunt Cerebrovascular Injuries: Advances in Screening, Imaging, and Management Trends
      A. Malhotra, X. Wu and K. Seifert
      American Journal of Neuroradiology September 2018, 39 (9) E103; DOI: https://doi.org/10.3174/ajnr.A5733

  3. Shafie, M.

    1. EDITOR'S CHOICEAdult Brain
      Open Access
      Hybrid 3D/2D Convolutional Neural Network for Hemorrhage Evaluation on Head CT
      P.D. Chang, E. Kuoy, J. Grinband, B.D. Weinberg, M. Thompson, R. Homo, J. Chen, H. Abcede, M. Shafie, L. Sugrue, C.G. Filippi, M.-Y. Su, W. Yu, C. Hess and D. Chow
      American Journal of Neuroradiology September 2018, 39 (9) 1609-1616; DOI: https://doi.org/10.3174/ajnr.A5742

      This study evaluates a convolutional neural network optimized for the detection and quantification of intraparenchymal, epidural/subdural, and subarachnoid hemorrhages on noncontrast CT with a 10,159-examination training cohort (512,598 images; 901/8.1% hemorrhages) and an 862-examination test cohort (23,668 images; 82/12% hemorrhages). Accuracy, area under the curve, sensitivity, specificity, positive predictive value, and negative predictive value for hemorrhage detection were 0.975, 0.983, 0.971, 0.975, 0.793, and 0.997 on training cohort cross-validation and 0.970, 0.981, 0.951, 0.973, 0.829, and 0.993 for the prospective test set.

  4. Shah-basak, P.

    1. FELLOWS' JOURNAL CLUBFunctional
      Breath-Hold Blood Oxygen Level–Dependent MRI: A Tool for the Assessment of Cerebrovascular Reserve in Children with Moyamoya Disease
      N. Dlamini, P. Shah-Basak, J. Leung, F. Kirkham, M. Shroff, A. Kassner, A. Robertson, P. Dirks, R. Westmacott, G. deVeber and W. Logan
      American Journal of Neuroradiology September 2018, 39 (9) 1717-1723; DOI: https://doi.org/10.3174/ajnr.A5739

      Twenty children (30 imaging sessions, 60 MR scans) with Moyamoya disease underwent dual breath-hold hypercapnic challenge blood oxygen level–dependent MR imaging of cerebrovascular reactivity studies in the same MR imaging session. Within-day, within-subject repeatability of cerebrovascular reactivity estimates, derived from the blood oxygen level–dependent signal, was computed. Breath-hold hypercapnic challenge blood oxygen level–dependent MR imaging is a repeatable technique for the assessment of cerebrovascular reactivity in children with Moyamoya disease and is reliably interpretable for use in clinical practice.

  5. Shaibani, A.

    1. Neurointervention
      Adjunctive Efficacy of Intra-Arterial Conebeam CT Angiography Relative to DSA in the Diagnosis and Surgical Planning of Micro-Arteriovenous Malformations
      A.S. Al-Smadi, A. Elmokadem, A. Shaibani, M.C. Hurley, M.B. Potts, B.S. Jahromi and S.A. Ansari
      American Journal of Neuroradiology September 2018, 39 (9) 1689-1695; DOI: https://doi.org/10.3174/ajnr.A5745

  6. Shapiro, M.

    1. Neurointervention
      Toward a Better Understanding of Dural Arteriovenous Fistula Angioarchitecture: Superselective Transvenous Embolization of a Sigmoid Common Arterial Collector
      M. Shapiro, E. Raz, M. Litao, T. Becske, H. Riina and P.K. Nelson
      American Journal of Neuroradiology September 2018, 39 (9) 1682-1688; DOI: https://doi.org/10.3174/ajnr.A5740

  7. Shin, J.

    1. FELLOWS' JOURNAL CLUBHead and Neck Imaging
      Contrast-Enhanced CISS Imaging for Evaluation of Neurovascular Compression in Trigeminal Neuralgia: Improved Correlation with Symptoms and Prediction of Surgical Outcomes
      A.M. Blitz, B. Northcutt, J. Shin, N. Aygun, D.A. Herzka, D. Theodros, C.R. Goodwin, M. Lim and D.P. Seeburg
      American Journal of Neuroradiology September 2018, 39 (9) 1724-1732; DOI: https://doi.org/10.3174/ajnr.A5743

      Retrospective review of high-resolution MRIs was performed in patients without prior microvascular decompression. 3D-CISS imaging without and with contrast for 81 patients with trigeminal neuralgia and 15 controls was intermixed and independently reviewed in a blinded fashion. Cisternal segments of both trigeminal nerves were assessed for the grade of neurovascular conflict, cross-sectional area, and degree of flattening. Contrast-enhanced CISS more than doubled the prevalence of the highest grade of neurovascular conflict (14.8% versus 33.3%) and yielded significantly lower cross-sectional area and greater degree of flattening for advanced-grade neurovascular conflict on the symptomatic side compared with non-contrast-enhanced CISS.

  8. Shroff, M.

    1. FELLOWS' JOURNAL CLUBFunctional
      Breath-Hold Blood Oxygen Level–Dependent MRI: A Tool for the Assessment of Cerebrovascular Reserve in Children with Moyamoya Disease
      N. Dlamini, P. Shah-Basak, J. Leung, F. Kirkham, M. Shroff, A. Kassner, A. Robertson, P. Dirks, R. Westmacott, G. deVeber and W. Logan
      American Journal of Neuroradiology September 2018, 39 (9) 1717-1723; DOI: https://doi.org/10.3174/ajnr.A5739

      Twenty children (30 imaging sessions, 60 MR scans) with Moyamoya disease underwent dual breath-hold hypercapnic challenge blood oxygen level–dependent MR imaging of cerebrovascular reactivity studies in the same MR imaging session. Within-day, within-subject repeatability of cerebrovascular reactivity estimates, derived from the blood oxygen level–dependent signal, was computed. Breath-hold hypercapnic challenge blood oxygen level–dependent MR imaging is a repeatable technique for the assessment of cerebrovascular reactivity in children with Moyamoya disease and is reliably interpretable for use in clinical practice.

  9. Skeete, D.

    1. Reply:
      P. Nagpal, B.A. Policeni, M. Kwofie, G. Bathla, C.P. Derdeyn and D. Skeete
      American Journal of Neuroradiology September 2018, 39 (9) E104; DOI: https://doi.org/10.3174/ajnr.A5758

  10. Sommer, C.M.

    1. Neurointervention
      Investigation of a New Version of the Liquid Embolic Agent PHIL with Extra-Low-Viscosity in an Endovascular Embolization Model
      D.F. Vollherbst, R. Otto, M. Hantz, C. Ulfert, H.U. Kauczor, M. Bendszus, C.M. Sommer and M.A. Möhlenbruch
      American Journal of Neuroradiology September 2018, 39 (9) 1696-1702; DOI: https://doi.org/10.3174/ajnr.A5750
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