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Table of Contents

December 01, 2019; Volume 40,Issue 12

Perspectives

  • You have access
    Perspectives
    Yulia Bronstein
    American Journal of Neuroradiology December 2019, 40 (12) 1977; DOI: https://doi.org/10.3174/ajnr.P0073

Review Articles

  • Head & Neck
    Open Access
    RESISTing the Need to Quantify: Putting Qualitative FDG-PET/CT Tumor Response Assessment Criteria into Daily Practice
    J.G. Peacock, C.T. Christensen and K.P. Banks
    American Journal of Neuroradiology December 2019, 40 (12) 1978-1986; DOI: https://doi.org/10.3174/ajnr.A6294
  • Head & Neck
    Open Access
    Imaging Findings Related to the Valsalva Maneuver in Head and Neck Radiology
    A.A. Madhavan, C.M. Carr, M.L. Carlson and J.I. Lane
    American Journal of Neuroradiology December 2019, 40 (12) 1987-1993; DOI: https://doi.org/10.3174/ajnr.A6309

Social Media Vignette

  • You have access
    Publicly Available Metrics Underestimate AJNR Twitter Impact and Follower Engagement
    C.M. Tomblinson, V. Wadhwa, E. Latimer, C.H. Gauss and J.L. McCarty
    American Journal of Neuroradiology December 2019, 40 (12) 1994-1997; DOI: https://doi.org/10.3174/ajnr.A6299

Clinical Vignette

  • You have access
    Lyme Disease: What the Neuroradiologist Needs to Know
    H.A. Valand, A. Goyal, D.A. Melendez, S.S. Matharu, H.S. Mangat and R.K. Tu
    American Journal of Neuroradiology December 2019, 40 (12) 1998-2000; DOI: https://doi.org/10.3174/ajnr.A6301

General Contents

  • Patient Safety
    You have access
    Safety and Diagnostic Efficacy of Gadobenate Dimeglumine in MRI of the Brain and Spine of Neonates and Infants
    D.S. Enterline, K.W Martin, H.A Parmar, F.M Triulzi and C. Colosimo
    American Journal of Neuroradiology December 2019, 40 (12) 2001-2009; DOI: https://doi.org/10.3174/ajnr.A6319
  • EDITOR'S CHOICESpine
    You have access
    Anatomy of the Great Posterior Radiculomedullary Artery
    V.H. Perez Perez, J. Hernesniemi and J.E. Small
    American Journal of Neuroradiology December 2019, 40 (12) 2010-2015; DOI: https://doi.org/10.3174/ajnr.A6304

    The authors describe the microsurgical anatomy of the great posterior radiculomedullary artery with emphasis on its morphometric parameters as well as its implications for spinal cord blood supply. The artery of Adamkiewicz in spinal cord specimens (n = 50) was injected with colored latex until the small-caliber arterial vessels were filled and the great posterior radiculomedullary artery was identified. The course, diameter, and location of great posterior radiculomedullary artery were documented. A great posterior radiculomedullary artery was identified in 36 (72%) spinal cord specimens. In 11 (22%) specimens, bilateral great posterior radiculomedullary arteries were present. In 13 cases (26%), a unilateral left-sided great posterior radiculomedullary artery was identified. In 11 cases (22%), a unilateral right-sided great posterior radiculomedullary artery was identified.

  • EDITOR'S CHOICEAdult Brain
    Open Access
    Intracranial Atherosclerotic Burden on 7T MRI Is Associated with Markers of Extracranial Atherosclerosis: The SMART-MR Study
    M.H.T. Zwartbol, M.I. Geerlings, R. Ghaznawi, J. Hendrikse, A.G. van der Kolk and on behalf of the UCC-SMART Study Group
    American Journal of Neuroradiology December 2019, 40 (12) 2016-2022; DOI: https://doi.org/10.3174/ajnr.A6308

    Intracranial atherosclerosis, a major risk factor for ischemic stroke, is thought to have different atherogenic mechanisms than extracranial atherosclerosis. Studies investigating their relationship in vivo are sparse and report inconsistent results. Within the Second Manifestations of ARTerial disease–Magnetic Resonance (SMART) Study, cross-sectional analyses were performed in 130 patients with a history of vascular disease and with assessable 7T intracranial vessel wall MR imaging data. Intracranial atherosclerosis burden was defined as the number of intracranial vessel wall lesions in the circle of Willis and its major branches. Significant associations were observed between higher intracranial atherosclerosis burden and carotid intima-media thickness, 50%–100% carotid stenosis versus no stenosis, ankle-brachial index, and estimated glomerular filtration rate. No significant differences in intracranial atherosclerosis burden were found among different categories of vascular disease.

  • Commentary
    You have access
    Intracranial and Extracranial Atherosclerosis: More Similar Than Different?
    L.L. Chan
    American Journal of Neuroradiology December 2019, 40 (12) 2023-2024; DOI: https://doi.org/10.3174/ajnr.A6349
  • Adult Brain
    Open Access
    Qualitative Assessment and Reporting Quality of Intracranial Vessel Wall MR Imaging Studies: A Systematic Review
    J.W. Song, S.C. Guiry, H. Shou, S. Wang, W.R. Witschey, S.R. Messé, S.E. Kasner and L.A. Loevner
    American Journal of Neuroradiology December 2019, 40 (12) 2025-2032; DOI: https://doi.org/10.3174/ajnr.A6317
  • Adult Brain
    Open Access
    Automated ASPECTS in Acute Ischemic Stroke: A Comparative Analysis with CT Perfusion
    V.K. Sundaram, J. Goldstein, D. Wheelwright, A. Aggarwal, P.S. Pawha, A. Doshi, J.T. Fifi, R. De Leacy, J. Mocco, J. Puig and K. Nael
    American Journal of Neuroradiology December 2019, 40 (12) 2033-2038; DOI: https://doi.org/10.3174/ajnr.A6303
  • Adult Brain
    You have access
    Are Linear Measurements of the Nucleus Basalis of Meynert Suitable as a Diagnostic Biomarker in Mild Cognitive Impairment and Alzheimer Disease?
    K.D. Jethwa, P. Dhillon, D. Meng, D.P. Auer and for the Alzheimer’s Disease Neuroimaging Initiative
    American Journal of Neuroradiology December 2019, 40 (12) 2039-2044; DOI: https://doi.org/10.3174/ajnr.A6313
  • Adult Brain
    Open Access
    DWI for Monitoring the Acute Response of Malignant Gliomas to Photodynamic Therapy
    Y. Fujita, T. Sasayama, K. Tanaka, K. Kyotani, H. Nagashima, M. Kohta, H. Kimura, A. Fujita and E. Kohmura
    American Journal of Neuroradiology December 2019, 40 (12) 2045-2051; DOI: https://doi.org/10.3174/ajnr.A6300
  • Adult Brain
    Open Access
    Prognostic Predictions for Patients with Glioblastoma after Standard Treatment: Application of Contrast Leakage Information from DSC-MRI within Nonenhancing FLAIR High-Signal-Intensity Lesions
    S.H. Kim, K.H. Cho, S.H. Choi, T.M. Kim, C.K. Park, S.H. Park, J.K. Won, I.H. Kim and S.T. Lee
    American Journal of Neuroradiology December 2019, 40 (12) 2052-2058; DOI: https://doi.org/10.3174/ajnr.A6297
  • Adult Brain
    You have access
    Quantification of Iodine Leakage on Dual-Energy CT as a Marker of Blood-Brain Barrier Permeability in Traumatic Hemorrhagic Contusions: Prediction of Surgical Intervention for Intracranial Pressure Management
    U.K. Bodanapally, K. Shanmuganathan, Y.P. Gunjan, G. Schwartzbauer, R. Kondaveti and T.R. Feiter
    American Journal of Neuroradiology December 2019, 40 (12) 2059-2065; DOI: https://doi.org/10.3174/ajnr.A6316
  • Adult Brain
    You have access
    Angiographic Analysis of Natural Anastomoses between the Posterior and Anterior Cerebral Arteries in Moyamoya Disease and Syndrome
    S. Bonasia, G. Ciccio, S. Smajda, A.G. Weil, C. Chaalala, R. Blanc, M. Reinert, M. Piotin, M. Bojanowski and T. Robert
    American Journal of Neuroradiology December 2019, 40 (12) 2066-2072; DOI: https://doi.org/10.3174/ajnr.A6291
  • Adult Brain
    Open Access
    Validation of Highly Accelerated Wave–CAIPI SWI Compared with Conventional SWI and T2*-Weighted Gradient Recalled-Echo for Routine Clinical Brain MRI at 3T
    J. Conklin, M.G.F. Longo, S.F. Cauley, K. Setsompop, R.G. González, P.W. Schaefer, J.E. Kirsch, O. Rapalino and S.Y. Huang
    American Journal of Neuroradiology December 2019, 40 (12) 2073-2080; DOI: https://doi.org/10.3174/ajnr.A6295
  • Adult Brain
    Open Access
    Volumetry of Mesiotemporal Structures Reflects Serostatus in Patients with Limbic Encephalitis
    L. Ernst, B. David, J. Gaubatz, I. Domínguez-Narciso, G. Lüchters, A.J. Becker, B. Weber, E. Hattingen, C.E. Elger and T. Rüber
    American Journal of Neuroradiology December 2019, 40 (12) 2081-2089; DOI: https://doi.org/10.3174/ajnr.A6289
  • FELLOWS' JOURNAL CLUBAdult Brain
    You have access
    Prevalence of Asymptomatic Middle Cranial Fossa Floor Pits and Encephaloceles on MR Imaging
    J.C. Benson, J. Lane, J.R. Geske, J.V. Gompel and K.N. Krecke
    American Journal of Neuroradiology December 2019, 40 (12) 2090-2093; DOI: https://doi.org/10.3174/ajnr.A6311

    A retrospective review was completed of high-resolution axial T2WI for internal auditory canal protocol imaging. The presence and laterality of middle cranial fossa pits (small bony defects containing CSF) and encephaloceles (brain parenchyma protrusion through osseous defects with or without bony remodeling) were recorded. A total of 203 patients were included in the final cohort; 106 (52.2%) were women. Forty-five (22.2%) patients had middle cranial fossa pits: 14 (31.1%) unilateral on the right, 17 (37.8%) unilateral on the left, and 14 (31.1%) bilateral. Ten (5.0%) patients had one or more encephaloceles, none of whom had a documented history of seizure in the electronic medical record. The incidence of such findings should be taken into account when identifying or treating such lesions as possible epileptogenic foci.

  • Neurointervention
    Open Access
    Outcome Study of the Pipeline Embolization Device with Shield Technology in Unruptured Aneurysms (PEDSU)
    D. Atasoy, N. Kandasamy, J. Hart, J. Lynch, S.-H. Yang, D. Walsh, C. Tolias and T.C. Booth
    American Journal of Neuroradiology December 2019, 40 (12) 2094-2101; DOI: https://doi.org/10.3174/ajnr.A6314
  • Neurointervention
    You have access
    Comparing Morphology and Hemodynamics of Stable-versus-Growing and Grown Intracranial Aneurysms
    E.L. Leemans, B.M.W. Cornelissen, C.H. Slump, C.B.L.M. Majoie, J.R. Cebral and H.A. Marquering
    American Journal of Neuroradiology December 2019, 40 (12) 2102-2110; DOI: https://doi.org/10.3174/ajnr.A6307
  • EDITOR'S CHOICENeurointervention
    You have access
    Identification of Vortex Cores in Cerebral Aneurysms on 4D Flow MRI
    K. Futami, T. Uno, K. Misaki, S. Tamai, I. Nambu, N. Uchiyama and M. Nakada
    American Journal of Neuroradiology December 2019, 40 (12) 2111-2116; DOI: https://doi.org/10.3174/ajnr.A6322

    The authors subjected 40 aneurysms (37 unruptured, 3 ruptured) to 4D flow MR imaging. They visualized streamlines with velocities below the threshold—that is, a percentage value of the aneurysm maximum inflow velocity—and progressively decreased the threshold to identify vortex cores as thin, streamline bundles with minimum velocities. A simple flow pattern (single vortex core) was identified in 27 aneurysms; the other 13 exhibited a complex flow pattern. The cores were stable in 32 and unstable in 8 aneurysms. Significantly more aneurysms with-than-without blebs or daughter sacs had a complex flow pattern. The identification of vortex cores on 4D flow MR imaging may help to stratify the rupture risk of unruptured cerebral aneurysms.

  • Neurointervention
    Open Access
    How Flow Reduction Influences the Intracranial Aneurysm Occlusion: A Prospective 4D Phase-Contrast MRI Study
    O. Brina, P. Bouillot, P. Reymond, A.S. Luthman, C. Santarosa, M. Fahrat, K.O. Lovblad, P. Machi, B.M.A. Delattre, V.M. Pereira and M.I. Vargas
    American Journal of Neuroradiology December 2019, 40 (12) 2117-2123; DOI: https://doi.org/10.3174/ajnr.A6312
  • Neurointervention
    You have access
    Optimizing the Quality of 4D-DSA Temporal Information
    K.L. Ruedinger, E.C. Harvey, S. Schafer, M.A. Speidel and C.M. Strother
    American Journal of Neuroradiology December 2019, 40 (12) 2124-2129; DOI: https://doi.org/10.3174/ajnr.A6290
  • Neurointervention
    You have access
    The Influence of Angioarchitectural Features on the Success of Endovascular Embolization of Cranial Dural Arteriovenous Fistulas with Onyx
    D.F. Vollherbst, C. Herweh, S. Schönenberger, F. Seker, S. Nagel, P.A. Ringleb, M. Bendszus and M.A. Möhlenbruch
    American Journal of Neuroradiology December 2019, 40 (12) 2130-2136; DOI: https://doi.org/10.3174/ajnr.A6326
  • FELLOWS' JOURNAL CLUBPediatrics
    Open Access
    Ultra-High-Field Targeted Imaging of Focal Cortical Dysplasia: The Intracortical Black Line Sign in Type IIb
    E. Bartolini, M. Cosottini, M. Costagli, C. Barba, L. Tassi, R. Spreafico, R. Garbelli, L. Biagi, A. Buccoliero, F. Giordano and R. Guerrini
    American Journal of Neuroradiology December 2019, 40 (12) 2137-2142; DOI: https://doi.org/10.3174/ajnr.A6298

    Between 2013 and 2019, the authors performed a standardized 7T MR imaging protocol in patients with drug-resistant focal epilepsy. They focused on 12 patients in whom postsurgical histopathology revealed focal cortical dysplasia and explored the diagnostic yield of preoperative 7T versus 1.5/3T MR imaging and the correlations of imaging findings with histopathology. They observed clear abnormalities in 10/12 patients using 7T versus 9/12 revealed by 1.5/3T MR imaging. In patients with focal cortical dysplasia I, 7T MR imaging did not disclose morphologic abnormalities (n= 0/2). In patients with focal cortical dysplasia II, 7T uncovered morphologic signs that were not visible on clinical imaging in 1 patient with focal cortical dysplasia IIa (n= 1/4) and in all those with focal cortical dysplasia IIb (n= 6/6). T2*WI provided the highest added value. The authors conclude that the high sensitivity of 7T T2*-weighted images provides an additional tool in defining potential morphologic markers of high epileptogenicity within the dysplastic tissue of focal cortical dysplasia IIb and will likely help to more precisely plan epilepsy surgery.

  • Pediatrics
    Open Access
    Cost and Utility of Routine Contrast-Enhanced Neck MRA in a Pediatric MRI Stroke Evaluation Protocol
    A. Baltensperger, D. Mirsky, J. Maloney, I. Neuberger, L. Fenton, T. Bernard, J. Borgstede and N. Stence
    American Journal of Neuroradiology December 2019, 40 (12) 2143-2145; DOI: https://doi.org/10.3174/ajnr.A6315
  • Pediatrics
    Open Access
    Topological Alterations of the Structural Brain Connectivity Network in Children with Juvenile Neuronal Ceroid Lipofuscinosis
    T. Roine, U. Roine, A. Tokola, M.H. Balk, M. Mannerkoski, L. Åberg, T. Lönnqvist and T. Autti
    American Journal of Neuroradiology December 2019, 40 (12) 2146-2153; DOI: https://doi.org/10.3174/ajnr.A6306
  • FELLOWS' JOURNAL CLUBPediatrics
    You have access
    Cerebellar Heterotopias: Expanding the Phenotype of Cerebellar Dysgenesis in CHARGE Syndrome
    J.N. Wright, J. Rutledge, D. Doherty and F. Perez
    American Journal of Neuroradiology December 2019, 40 (12) 2154-2160; DOI: https://doi.org/10.3174/ajnr.A6280

    The authors performed a retrospective, observational, cross-sectional study to assess the prevalence and characteristic features of cerebellar heterotopias in 35 patients with CHARGE syndrome with available brain MR imaging studies, as well as to evaluate additional features of cerebellar dysgenesis. Cerebellar heterotopias were identified in 27/35 (77%) patients with CHARGE, characteristic in both location and appearance. Additional features of cerebellar dysgenesis were present in 31/34 evaluable patients (91%), including inferior vermian hypoplasia (90%), anteromedial rotation of the inferior tonsils (90%), and disorganized foliation of the cerebellar hemispheres (74%) or superior vermis (16%). Patients with CHARGE syndrome have a high prevalence of characteristic cerebellar heterotopias.

  • Pediatrics
    Open Access
    White Matter Injury and Structural Anomalies in Infants with Prenatal Opioid Exposure
    S.L. Merhar, N.A. Parikh, A. Braimah, B.B. Poindexter, J. Tkach and B. Kline-Fath
    American Journal of Neuroradiology December 2019, 40 (12) 2161-2165; DOI: https://doi.org/10.3174/ajnr.A6282
  • Pediatrics
    You have access
    Intraspinal Paragonimiasis in Children: MRI Findings and Suggestions for Pathogenesis
    Y. Qin, J. Cai, W. Ji, X. Chen, L. Tian, S. Jun, L. Wang and X. He
    American Journal of Neuroradiology December 2019, 40 (12) 2166-2171; DOI: https://doi.org/10.3174/ajnr.A6296

Online Features

  • Letters

    • Letter
      You have access
      Methodologic Concerns on the Reported Values for Assessing Permeability of the Blood-Brain Barrier in the Hippocampus
      C.M. Lim and W.-J. Moon
      American Journal of Neuroradiology December 2019, 40 (12) E65-E66; DOI: https://doi.org/10.3174/ajnr.A6228
    • Letter
      You have access
      Reply:
      J. Ivanidze, M. Mackay, A. Hoang, J.M. Chi, K. Cheng, C. Aranow, B. Volpe, B. Diamond and P.C. Sanelli
      American Journal of Neuroradiology December 2019, 40 (12) E67-E68; DOI: https://doi.org/10.3174/ajnr.A6361
    • Letter
      You have access
      Multinodular and Vacuolating Neuronal Tumor of the Cerebrum: Does the Name Require Review?
      A. Agarwal, R. Lakshmanan, I. Devagnanam and M. Bynevelt
      American Journal of Neuroradiology December 2019, 40 (12) E69-E70; DOI: https://doi.org/10.3174/ajnr.A6284

Erratum

  • Errata
    You have access
    Erratum
    American Journal of Neuroradiology December 2019, 40 (12) E71; DOI: https://doi.org/10.3174/ajnr.A6353
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American Journal of Neuroradiology: 40 (12)
American Journal of Neuroradiology
Vol. 40, Issue 12
1 Dec 2019
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