AUGUST 2015 THE JOURNAL OF DIAGNOSTIC AND VOLUME 36 INTERVENTIONAL NEURORADIOLOGY NUMBER 8 WWW.AJNR.ORG Reversible cerebral vasoconstriction syndrome Proton beam radiation necrosis in pediatric patients Woven EndoBridge flow disrupter Official Journal ASNR • ASFNR • ASHNR • ASPNR • ASSR Engineered® by MicroVention HYDROGEL ADVANCED COILS ThT e cliniccalal benenefie ts of hydrogel NOW engginneeereed wiwitht the sooftf ness of bare plal titinunum onn the VV-Trak® Advd ana cec d Coill Systet m. INDICATIONS FOR USE: The HydroCoil® Embolic System (HES) is intended for the endovascular embolization of intracranial aneurysms and other neurovascular abnormalities such as arteriovenous malformations and arteriovenous fistulae. The HES is also intended for vascular occlusion of blood vessels within the neurovascular system to permanently obstruct blood flow to an aneurysm or other vascular malformation and for arterial and venous embolizations in the peripheral vasculature. The device should only be used by physicians who have undergone pre-clinical training in all aspects of HES procedures as prescribed by MicroVention. MICROVENTION, V-Trak, HydroCoil, HydroFrame, HydroFill and HydroSoft are registered trademarks of MicroVention, Inc. Scientific and clinical data related to this document are on file at MicroVention, Inc. Refer to Instructions for Use, contraindications and warnings for additional information. Federal (USA) law restricts this device for sale by or on the order of a physician. © 2015 MicroVention, Inc. 6/15 Frame, Fill, Finish HydroFrame® ® ® HydroCoil® Embolic System HydroCoil® Embolic System HydroCoil® Embolic System t $-*/*$"--: 456%*&% ):%30(&- t &''&$5*7&1,2,3 t &45"#-*4)&% 4"'&5: 130'*-&4 t 40'5&3 %&4*(/5 MicroVention, Inc. For more information or a product demonstration, Worldwide Headquarters PH +1.714.247.8000 contact your local MicroVention representative: 1311 Valencia Avenue Tustin, CA 92780 USA MicroVention UK Limited PH +44 (0) 191 258 6777 MicroVention Europe, S.A.R.L. PH +33 (1) 39 21 77 46 MicroVention Deutschland GmbH PH +49 211 210 798-0 microvention.com References 1. Speirs, Burke, Lee, and Ala. The next generation HydroCoil: initial clinical experience with the HydroFill embolic coil. J NeuroIntervent Surg, 2013. 2. Brinjikiji et al. Abstract 112. Presented at: International Stroke Conference 2015, Nashville, Tennessee, February 11-13, 2015. 3. Lee, Seo, Less, Cho, Kang and Han. Mid-term outcome of intracranial aneurysms treated with HydroSoft coils compared to historical controls treated with bare platinum coils: a single-center experience. Acta Neurochir, 156:1687-1694, 2014. 4. Laymond et al. Patients prone to recurrence after endovascular treatment: periprocedural results of the PRET randomized trial on large and recurrent aneurysms, AJNR AM J Neuroradiol, 2014. 5. Data on file at MicroVention, Inc. Extremely soft profi le of The Barricade Finishing coil now in a complex shape Excellent microcatheter stability for confi dent coil placement Available in a size range of 1mm-5mm MADE IN AMERICA The Barricade Coil System is intended for the endovascular embolization of intracranial aneurysms and other neurovascular abnormalities such as arteriovenous malformations and arteriovenous fi stulae. The System is also intended for vascular occlusion of blood vessels within the neurovascular system to permanently obstruct blood fl ow to an aneurysm or other vascular malformation and for arterial and venous embolizations in the peripheral vasculature. Refer to the instructions for use for complete product information. 18 TECHNOLOGY DRIVE #169, IRVINE CA 92618 p: 949.788.1443 | f: 949.788.1444 WWW.BLOCKADEMEDICAL.COM MKTG-031 Rev. A AMERICAN JOURNAL OF NEURORADIOLOGY AUGUST 2015 Publication Preview at www.ajnr.org features articles released in advance of print. AJNRVOLUME 36 Visit www.ajnrblog.org to comment on AJNR content and chat with colleagues NUMBER 8 and AJNR’s News Digest at http://ajnrdigest.org to read the stories behind the WWW.AJNR.ORG latest research in neuroimaging. PERSPECTIVES 1391 J. McCarty REVIEW ARTICLE 1392 Reversible Cerebral Vasoconstriction Syndrome, Part 1: Epidemiology, Pathogenesis, and Clinical Course T.R. Miller, R. Shivashankar, M. Mossa-Basha, and D. Gandhi PRACTICE PERSPECTIVES 1400 Mesial Temporal Sclerosis: Accuracy of NeuroQuant versus Neuroradiologist M. Azab, M. Carone, S.H. Ying, and D.M. Yousem ADULT BRAIN 1407 Perfusion Deficits and Mismatch in Patients with Acute Lacunar Infarcts Studied with Whole-Brain CT Perfusion S. Rudilosso, X. Urra, L. San Roma´n, Indicates Editor’s C. Laredo, A. Lo´pez-Rueda, S. Amaro, L. Oleaga, and A´. Chamorro Choices selection Indicates Fellows’ 1413 Residual Thromboembolic Material in Cerebral Arteries after Endovascular Journal Club selection Stroke Therapy Can Be Identified by Dual-Energy CT A.E. Grams, Indicates open access to non- M. Knoflach, R. Rehwald, J. Willeit, M. Sojer, E.R. Gizewski, and B. Glodny subscribers at www.ajnr.org 1419 Performance and Predictive Value of a User-Independent Platform for CT Indicates article with supplemental on-line table Perfusion Analysis: Threshold-Derived Automated Systems Outperform Examiner-Driven Approaches in Outcome Prediction of Acute Ischemic Indicates article with supplemental on-line photo Stroke S. Dehkharghani, R. Bammer, M. Straka, L.S. Albin, O. Kass-Hout, J.W. Allen, Indicates article with S. Rangaraju, D. Qiu, M.J. Winningham, and F. Nahab supplemental on-line video 1426 Hyperintense Vessels on FLAIR: Hemodynamic Correlates and Response to EBM Indicates Evidence-Based Medicine Thrombolysis A. Kufner, I. Galinovic, V. Ambrosi, C.H. Nolte, M. Endres, J.B. Fiebach, 1 Level 1 and M. Ebinger EBM Indicates Evidence-Based Medicine 2 Level 2 1431 Evaluating CT Perfusion Deficits in Global Cerebral Edema after Aneurysmal Subarachnoid Hemorrhage H. Baradaran, V. Fodera, D. Mir, K. Kesavobhotla, J. Ivanidze, U. Ozbek, A. Gupta, J. Claassen, and P.C. Sanelli 1436 Constrained Source Space MR Spectroscopy: Multiple Voxels, No Gradient Readout K. Landheer, A. Sahgal, S. Das, and S. J. Graham 1444 High-Resolution DCE-MRI of the Pituitary Gland Using Radial k-Space Acquisition with Compressed Sensing Reconstruction M.C. Rossi Espagnet, L. Bangiyev, M. Haber, K.T. Block, J. Babb, V. Ruggiero, F. Boada, O. Gonen, CT images showing findings and G.M. Fatterpekar of acute invasive fungal rhinosinusitis including 1450 How Does the Accuracy of Intracranial Volume Measurements Affect periantral fat involvement, Normalized Brain Volumes? Sample Size Estimates Based on 966 Subjects and soft tissue within the from the HUNT MRI Cohort T.I. Hansen, V. Brezova, L. Eikenes, A. Håberg, sphenopalatine foramen. and T.R. Vangberg The newly designed Trevo® XP ProVue Retriever takes proven Trevo Retriever performance to new levels for easy delivery, easy placement, and easy visualization. When you’re in control, it’s amazing what you can capture. Copyright © 2014 Stryker NV00009028.AA 1457 Longitudinal Mixed-Effect Model Analysis of the Association between Global and Tissue-Specific Brain Atrophy and Lesion Accumulation in Patients with Clinically Isolated Syndrome M. Varosanec, T. Uher, D. Horakova, J. Hagemeier, N. Bergsland, M. Tyblova, Z. Seidl, M. Vaneckova, J. Krasensky, M.G. Dwyer, E. Havrdova, and R. Zivadinov 1465 Improving Multiple Sclerosis Plaque Detection Using a Semiautomated Assistive Approach J. van Heerden, D. Rawlinson, A.M. Zhang, R. Chakravorty, M.A. Tacey, P.M. Desmond, and F. Gaillard 1472 Mean Diffusional Kurtosis in Patients with Glioma: Initial Results with a Fast Imaging Method in a Clinical Setting A. Tietze, M.B. Hansen, L. Østergaard, S.N. Jespersen, R. Sangill, T.E. Lund, M. Geneser, M. Hjelm, and B. Hansen FUNCTIONAL EBM 2 1479 Influence of Resting-State Network on Lateralization of Functional Connectivity in Mesial Temporal Lobe Epilepsy L. Su, J. An, Q. Ma, S. Qiu, and D. Hu 1488 Challenges in Identifying the Foot Motor Region in Patients with Brain Tumor on Routine MRI: Advantages of fMRI R.A. Fisicaro, R.X. Jiao, C. Stathopoulos, N.M. Petrovich Brennan, K.K. Peck, and A.I. Holodny 1494 Identifying Corticothalamic Network Epicenters in Patients with Idiopathic Generalized Epilepsy G.-J. Ji, Z. Zhang, Q. Xu, Z. Wang, J. Wang, Q. Jiao, F. Yang, Q. Tan, G. Chen, Y.-F. Zang, W. Liao, and G. Lu INTERVENTIONAL 1501 Woven EndoBridge Intrasaccular Flow Disrupter for the Treatment of Ruptured and Unruptured Wide-Neck Cerebral Aneurysms: Report of 55 Cases D. Behme, A. Berlis, and W. Weber 1507 Vascular Wall Imaging of Unruptured Cerebral Aneurysms with a Hybrid of Opposite-Contrast MR Angiography T. Matsushige, Y. Akiyama, T. Okazaki, K. Shinagawa, N. Ichinose, K. Awai, and K. Kurisu HEAD & NECK 1512 The Role of Core Needle Biopsy and Its Impact on Surgical Management in Patients with Medullary Thyroid Cancer: Clinical Experience at 3 Medical Institutions E.J. Ha, J.H. Baek, D.G. Na, J.-h. Kim, J.K. Kim, H.S. Min, D.E. Song, K.E. Lee, and Y.K. Shong 1518 Optimal Virtual Monochromatic Images for Evaluation of Normal Tissues and Head and Neck Cancer Using Dual-Energy CT S. Lam, R. Gupta, M. Levental, E. Yu, H.D. Curtin, and R. Forghani 1525 Residual Cervical Thymus: A Normal CT Finding That May Be Present Throughout Patients’ Lives A.V. Prabhu, H.A. Kale, and B.F. Branstetter IV 1529 Acute Invasive Fungal Rhinosinusitis: A Comprehensive Update of CT Findings and Design of an Effective Diagnostic Imaging Model E.H. Middlebrooks, C.J. Frost, R.O. De Jesus, T.C. Massini, I.M. Schmalfuss, and A.A. Mancuso 1536 Hyperintense Optic Nerve due to Diffusion Restriction: Diffusion- Weighted Imaging in Traumatic Optic Neuropathy U.K. Bodanapally, K. Shanmuganathan, R.K. Shin, D. Dreizin, L. Katzman, R.P. Reddy, and D. Mascarenhas PEDIATRICS 1542 Injury to the Cerebellum in Term Asphyxiated Newborns Treated with Hypothermia S. Kwan, E. Boudes, G. Gilbert, C. Saint-Martin, S. Albrecht, M. Shevell, and P. Wintermark The Foundation of the ASNR Symposium 2016: Emergency Neuroradiology May 21-22 ASNR 54th Annual Meeting May 23-26 Howard A. Rowley, MD, ASNR 2016 Program Chair/President-Elect Programming developed in cooperation with … American Society of Functional Neuroradiology (ASFNR) Christopher G.