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Table of Contents

August 01, 2020; Volume 41,Issue 8

Perspectives

  • You have access
    Perspectives
    Yulia Bronstein
    American Journal of Neuroradiology August 2020, 41 (8) 1327; DOI: https://doi.org/10.3174/ajnr.P0075

Review Articles

  • Adult Brain
    Open Access
    Potentially Reversible and Recognizable Acute Encephalopathic Syndromes: Disease Categorization and MRI Appearances
    Y. Koksel and A.M. McKinney
    American Journal of Neuroradiology August 2020, 41 (8) 1328-1338; DOI: https://doi.org/10.3174/ajnr.A6634
  • Adult Brain
    Open Access
    Spontaneous Intracranial Hypotension: Atypical Radiologic Appearances, Imaging Mimickers, and Clinical Look-Alikes
    K.M. Bond, J.C. Benson, J.K. Cutsforth-Gregory, D.K. Kim, F.E. Diehn and C.M. Carr
    American Journal of Neuroradiology August 2020, 41 (8) 1339-1347; DOI: https://doi.org/10.3174/ajnr.A6637

Practice Perspectives

  • You have access
    Parental Leave and Neuroradiology Fellowships
    F.G. Sherbaf, D.D.M. Lin and D.M. Yousem
    American Journal of Neuroradiology August 2020, 41 (8) 1348-1354; DOI: https://doi.org/10.3174/ajnr.A6648

Editorial

  • Open Access
    Evolving Neuroimaging Findings during COVID-19
    R. Jain
    American Journal of Neuroradiology August 2020, 41 (8) 1355-1356; DOI: https://doi.org/10.3174/ajnr.A6658

Practice Perspectives

  • Interventional
    Open Access
    Initial Stroke Thrombectomy Experience in New York City during the COVID-19 Pandemic
    K.A. Yaeger, J.T. Fifi, J. Lara-Reyna, C. Rossitto, T. Ladner, B. Yim, T. Hardigan, G.A. Maragkos, T. Shigematsu, S. Majidi and J. Mocco
    American Journal of Neuroradiology August 2020, 41 (8) 1357-1360; DOI: https://doi.org/10.3174/ajnr.A6652

General Contents

  • FELLOWS' JOURNAL CLUBAdult Brain
    Open Access
    COVID-19 Is an Independent Risk Factor for Acute Ischemic Stroke
    P. Belani, J. Schefflein, S. Kihira, B. Rigney, B.N. Delman, K. Mahmoudi, J. Mocco, S. Majidi, J. Yeckley, A. Aggarwal, D. Lefton and A.H. Doshi
    American Journal of Neuroradiology August 2020, 41 (8) 1361-1364; DOI: https://doi.org/10.3174/ajnr.A6650

    COVID-19 infection is significantly associated with imaging confirmation of acute ischemic stroke, and patients with COVID-19 should undergo more aggressive monitoring for stroke.

  • FELLOWS' JOURNAL CLUBAdult Brain
    Open Access
    Neurologic Involvement in COVID-19: Cause or Coincidence? A Neuroimaging Perspective
    A. Pons-Escoda, P. Naval-Baudín, C. Majós, A. Camins, P. Cardona, M. Cos and N. Calvo
    American Journal of Neuroradiology August 2020, 41 (8) 1365-1369; DOI: https://doi.org/10.3174/ajnr.A6627

    Despite a large cohort of 103 patients with COVID-19, the authors found a large number of symptomatic patients with negative neuroimaging findings, and no conclusions can be drawn concerning concrete associations between neuroimaging and COVID-19.

  • FELLOWS' JOURNAL CLUBAdult Brain
    Open Access
    Cerebral Venous Thrombosis Associated with COVID-19
    D.D. Cavalcanti, E. Raz, M. Shapiro, S. Dehkharghani, S. Yaghi, K. Lillemoe, E. Nossek, J. Torres, R. Jain, H.A. Riina, A. Radmanesh and P.K. Nelson
    American Journal of Neuroradiology August 2020, 41 (8) 1370-1376; DOI: https://doi.org/10.3174/ajnr.A6644

    The authors report a unique series of young patients with COVID-19 presenting with cerebral venous system thrombosis. Three patients younger than 41 years of age with confirmed Severe Acute Respiratory Syndrome coronavirus 2 infection had neurologic findings related to cerebral venous thrombosis.

  • Adult Brain
    Open Access
    Atypical Deep Cerebral Vein Thrombosis with Hemorrhagic Venous Infarction in a Patient Positive for COVID-19
    L. Chougar, B. Mathon, N. Weiss, V. Degos and N. Shor
    American Journal of Neuroradiology August 2020, 41 (8) 1377-1379; DOI: https://doi.org/10.3174/ajnr.A6642
  • Adult Brain
    Open Access
    Neuroimaging Findings in Patients with COVID-19
    P. Nicholson, L. Alshafai and T. Krings
    American Journal of Neuroradiology August 2020, 41 (8) 1380-1383; DOI: https://doi.org/10.3174/ajnr.A6630
  • Adult Brain
    Open Access
    COVID-19 Neurologic Complication with CNS Vasculitis-Like Pattern
    R. Hanafi, P.-A. Roger, B. Perin, G. Kuchcinski, N. Deleval, F. Dallery, D. Michel, L. Hacein-Bey, J.-P. Pruvo, O. Outteryck and J.-M. Constans
    American Journal of Neuroradiology August 2020, 41 (8) 1384-1387; DOI: https://doi.org/10.3174/ajnr.A6651
  • Adult Brain
    Open Access
    Evaluation of Ultrafast Wave-CAIPI MPRAGE for Visual Grading and Automated Measurement of Brain Tissue Volume
    M.G.F. Longo, J. Conklin, S.F. Cauley, K. Setsompop, Q. Tian, D. Polak, M. Polackal, D. Splitthoff, W. Liu, R.G. González, P.W. Schaefer, J.E. Kirsch, O. Rapalino and S.Y. Huang
    American Journal of Neuroradiology August 2020, 41 (8) 1388-1396; DOI: https://doi.org/10.3174/ajnr.A6703
  • Adult Brain
    Open Access
    Cerebral Microbleeds Are Associated with Loss of White Matter Integrity
    J.-Y. Liu, Y.-J. Zhou, F.-F. Zhai, F. Han, L.-X. Zhou, J. Ni, M. Yao, S. Zhang, Z. Jin, L. Cui and Y.-C. Zhu
    American Journal of Neuroradiology August 2020, 41 (8) 1397-1404; DOI: https://doi.org/10.3174/ajnr.A6622
  • EDITOR'S CHOICEAdult Brain
    You have access
    Black Dipole or White Dipole: Using Susceptibility Phase Imaging to Differentiate Cerebral Microbleeds from Intracranial Calcifications
    C.-L. Weng, Y. Jeng, Y.-T. Li, C.-J. Chen and D.Y.-T. Chen
    American Journal of Neuroradiology August 2020, 41 (8) 1405-1413; DOI: https://doi.org/10.3174/ajnr.A6636

    The authors evaluated the diagnostic accuracy of differentiating cerebral microbleeds and calcifications from phase patterns in axial locations in 31 consecutive patients undergoing both CT and MR imaging for acute infarction and exhibiting dark spots in gradient-echo magnitude images. Six patients had additional quantitative susceptibility mapping images. To determine their susceptibility, 2 radiologists separately investigated the phase patterns in the border and central sections. Among 190 gradient-echo dark spots, 62 calcifications and 128 cerebral microbleeds were detected from CT. Interobserver reliability was higher for the border phase patterns than for the central phase patterns. The sensitivity and specificity of the border phase patterns in identifying calcifications were higher than those of the central phase patterns, particularly for lesions >2.5 mm in diameter and quantitative susceptibility mapping of dark spots. They conclude that the border phase patterns were more accurate than the central phase patterns in differentiating calcifications and cerebral microbleeds and were as accurate as quantitative susceptibility mapping.

  • Adult Brain
    You have access
    Lower Lactate Levels and Lower Intracellular pH in Patients with IDH-Mutant versus Wild-Type Gliomas
    K.J. Wenger, J.P. Steinbach, O. Bähr, U. Pilatus and E. Hattingen
    American Journal of Neuroradiology August 2020, 41 (8) 1414-1422; DOI: https://doi.org/10.3174/ajnr.A6633
  • Adult Brain
    Open Access
    Effect of Piezo1 Overexpression on Peritumoral Brain Edema in Glioblastomas
    S. Qu, T. Hu, O. Qiu, Y. Su, J. Gu and Z. Xia
    American Journal of Neuroradiology August 2020, 41 (8) 1423-1429; DOI: https://doi.org/10.3174/ajnr.A6638
  • Adult Brain
    You have access
    Focal Leptomeningeal Disease with Perivascular Invasion in EGFR-Mutant Non-Small-Cell Lung Cancer
    A. Dasgupta, F.Y. Moraes, S. Rawal, P. Diamandis and D.B. Shultz
    American Journal of Neuroradiology August 2020, 41 (8) 1430-1433; DOI: https://doi.org/10.3174/ajnr.A6640
  • Interventional
    You have access
    Dural Venous Channels: Hidden in Plain Sight–Reassessment of an Under-Recognized Entity
    M. Shapiro, K. Srivatanakul, E. Raz, M. Litao, E. Nossek and P.K. Nelson
    American Journal of Neuroradiology August 2020, 41 (8) 1434-1440; DOI: https://doi.org/10.3174/ajnr.A6647
  • Interventional
    You have access
    Reliability of the Modified TICI Score among Endovascular Neurosurgeons
    D.M. Heiferman, N.C. Pecoraro, A.W. Wozniak, K.C. Ebersole, L.M. Jimenez, M.R. Reynolds, A.J. Ringer and J.C. Serrone
    American Journal of Neuroradiology August 2020, 41 (8) 1441-1446; DOI: https://doi.org/10.3174/ajnr.A6696
  • Interventional
    You have access
    Incidence and Risk Factors of In-Stent Restenosis for Symptomatic Intracranial Atherosclerotic Stenosis: A Systematic Review and Meta-Analysis
    G. Peng, Y. Zhang and Z. Miao
    American Journal of Neuroradiology August 2020, 41 (8) 1447-1452; DOI: https://doi.org/10.3174/ajnr.A6689
  • Extracranial Vascular
    You have access
    The Risk of Stroke and TIA in Nonstenotic Carotid Plaques: A Systematic Review and Meta-Analysis
    N. Singh, M. Marko, J.M. Ospel, M. Goyal and M. Almekhlafi
    American Journal of Neuroradiology August 2020, 41 (8) 1453-1459; DOI: https://doi.org/10.3174/ajnr.A6613
  • Extracranial Vascular
    You have access
    Perivascular Fat Density and Contrast Plaque Enhancement: Does a Correlation Exist?
    L. Saba, S. Zucca, A. Gupta, G. Micheletti, J.S. Suri, A. Balestrieri, M. Porcu, P. Crivelli, G. Lanzino, Y. Qi, V. Nardi, G. Faa and R. Montisci
    American Journal of Neuroradiology August 2020, 41 (8) 1460-1465; DOI: https://doi.org/10.3174/ajnr.A6710
  • Head & Neck
    Open Access
    Non-EPI-DWI for Detection, Disease Monitoring, and Clinical Decision-Making in Thyroid Eye Disease
    C. Feeney, R.K. Lingam, V. Lee, F. Rahman and S. Nagendran
    American Journal of Neuroradiology August 2020, 41 (8) 1466-1472; DOI: https://doi.org/10.3174/ajnr.A6664
  • Head & Neck
    You have access
    Pretreatment DWI with Histogram Analysis of the ADC in Predicting the Outcome of Advanced Oropharyngeal Cancer with Known Human Papillomavirus Status Treated with Chemoradiation
    M. Ravanelli, A. Grammatica, M. Maddalo, M. Ramanzin, G.M. Agazzi, E. Tononcelli, S. Battocchio, P. Bossi, M. Vezzoli, R. Maroldi and D. Farina
    American Journal of Neuroradiology August 2020, 41 (8) 1473-1479; DOI: https://doi.org/10.3174/ajnr.A6695
  • Head & Neck
    You have access
    Multishell Diffusion MRI–Based Tractography of the Facial Nerve in Vestibular Schwannoma
    M. Castellaro, M. Moretto, V. Baro, S. Brigadoi, E. Zanoletti, M. Anglani, L. Denaro, R. Dell’Acqua, A. Landi, F. Causin, D. d’Avella and A. Bertoldo
    American Journal of Neuroradiology August 2020, 41 (8) 1480-1486; DOI: https://doi.org/10.3174/ajnr.A6706
  • EDITOR'S CHOICEHead & Neck
    You have access
    Indentation and Transverse Diameter of the Meckel Cave: Imaging Markers to Diagnose Idiopathic Intracranial Hypertension
    A. Kamali, K.C. Sullivan, F. Rahmani, A. Gandhi, A. Aein, O. Arevalo, P. Rabiei, S.J. Choi, X. Zhang, R.E. Gabr and R.F. Riascos
    American Journal of Neuroradiology August 2020, 41 (8) 1487-1494; DOI: https://doi.org/10.3174/ajnr.A6682

    The purpose of this study was to investigate whether the shape (bilobed or indented appearance of the Meckel cave) or the size/volume of the Meckel cave on T2-weighted MRI could serve as a noninvasive diagnostic imaging marker for the diagnosis of idiopathic intracranial hypertension. The authors studied 75 patients with a diagnosis of IIH and 75 age-and sex-matched healthy controls. The transverse diameter of the Meckel cave was measured in the axial and coronal planes of T2-weighted MRI, and comparison was made between the 2 groups. Of 75 patients with an approved diagnosis of IIH, 57 (76%) showed an indented Meckel cave as opposed to 21 (28%) in the control group. They conclude that the shape and size of the Meckel cave can be used as sensitive and specific diagnostic imaging markers for the diagnosis of IIH.

  • EDITOR'S CHOICEPediatrics
    Open Access
    Characterizing White Matter Tract Organization in Polymicrogyria and Lissencephaly: A Multifiber Diffusion MRI Modeling and Tractography Study
    F. Arrigoni, D. Peruzzo, S. Mandelstam, G. Amorosino, D. Redaelli, R. Romaniello, R. Leventer, R. Borgatti, M. Seal and J.Y.-M. Yang
    American Journal of Neuroradiology August 2020, 41 (8) 1495-1502; DOI: https://doi.org/10.3174/ajnr.A6646

    The authors retrospectively reviewed 50 patients (mean age, 8.3 years) with different polymicrogyria (n = 42) and lissencephaly (n = 8) subtypes. The fiber direction-encoded color maps and 6 different white matter tracts reconstructed from each patient were visually compared with corresponding images reconstructed from 7 age-matched, healthy control WM templates. The authors demonstrated a range of white matter tract structural abnormalities in patients with polymicrogyria and lissencephaly. The patterns of white matter tract involvement are related to polymicrogyria and lissencephaly subgroups, distribution, and, possibly, their underlying etiologies.

  • Pediatrics
    You have access
    Characterizing the Subcortical Structures in Youth with Congenital Heart Disease
    K. Fontes, F. Courtin, C.V. Rohlicek, C. Saint-Martin, G. Gilbert, K. Easson, A. Majnemer, A. Marelli, M.M. Chakravarty and M. Brossard-Racine
    American Journal of Neuroradiology August 2020, 41 (8) 1503-1508; DOI: https://doi.org/10.3174/ajnr.A6667
  • Pediatrics
    Open Access
    MRI Findings at Term-Corrected Age and Neurodevelopmental Outcomes in a Large Cohort of Very Preterm Infants
    S. Arulkumaran, N. Tusor, A. Chew, S. Falconer, N. Kennea, P. Nongena, J.V. Hajnal, S.J. Counsell, M.A. Rutherford and A.D. Edwards
    American Journal of Neuroradiology August 2020, 41 (8) 1509-1516; DOI: https://doi.org/10.3174/ajnr.A6666
  • Pediatrics
    You have access
    Pediatric Acute Toxic Leukoencephalopathy: Prediction of the Clinical Outcome by FLAIR and DWI for Various Etiologies
    K. Ozturk, J. Rykken and A.M. McKinney
    American Journal of Neuroradiology August 2020, 41 (8) 1517-1524; DOI: https://doi.org/10.3174/ajnr.A6624
  • Pediatrics
    Open Access
    Association of Isolated Congenital Heart Disease with Fetal Brain Maturation
    C. Jaimes, V. Rofeberg, C. Stopp, C.M. Ortinau, A. Gholipour, K.G. Friedman, W. Tworetzky, J. Estroff, J.W. Newburger, D. Wypij, S.K. Warfield, E. Yang and C.K. Rollins
    American Journal of Neuroradiology August 2020, 41 (8) 1525-1531; DOI: https://doi.org/10.3174/ajnr.A6635
  • Pediatrics
    Open Access
    Introduction of Ultra-High-Field MR Imaging in Infants: Preparations and Feasibility
    K.V. Annink, N.E. van der Aa, J. Dudink, T. Alderliesten, F. Groenendaal, M. Lequin, F.E. Jansen, K.S. Rhebergen, P. Luijten, J. Hendrikse, H.J.M. Hoogduin, E.R. Huijing, E. Versteeg, F. Visser, A.J.E. Raaijmakers, E.C. Wiegers, D.W.J. Klomp, J.P. Wijnen and M.J.N.L. Benders
    American Journal of Neuroradiology August 2020, 41 (8) 1532-1537; DOI: https://doi.org/10.3174/ajnr.A6702
  • Pediatrics
    You have access
    MRI Head Coil Malfunction Producing Artifacts Mimicking Malformation of Cortical Development in Pediatric Epilepsy Work-Up
    N. Kashani, N. Khan, J.M. Ospel and X.-C. Wei
    American Journal of Neuroradiology August 2020, 41 (8) 1538-1540; DOI: https://doi.org/10.3174/ajnr.A6639

Online Features

  • White Paper

    • White Paper
      You have access
      Artificial Intelligence in Neuroradiology: Current Status and Future Directions
      Y.W. Lui, P.D. Chang, G. Zaharchuk, D.P. Barboriak, A.E. Flanders, M. Wintermark, C.P. Hess and C.G. Filippi
      American Journal of Neuroradiology August 2020, 41 (8) E52-E59; DOI: https://doi.org/10.3174/ajnr.A6681
  • Letters

    • LETTER
      You have access
      Depth-of-Fissure Cerebellar Infarcts in Adults
      L.J.L. De Cocker and J. Hendrikse
      American Journal of Neuroradiology August 2020, 41 (8) E60; DOI: https://doi.org/10.3174/ajnr.A6626
    • LETTER
      You have access
      Reply
      J.N. Wright, D.W.W. Shaw, G. Ishak, F.A. Perez and D. Doherty
      American Journal of Neuroradiology August 2020, 41 (8) E61; DOI: https://doi.org/10.3174/ajnr.A6673
    • LETTER
      Open Access
      Occam’s Razor, Stroke, and COVID-19
      N. Morelli, M. Spallazzi, E. Rota and E. Michieletti
      American Journal of Neuroradiology August 2020, 41 (8) E62-E63; DOI: https://doi.org/10.3174/ajnr.A6656
    • LETTER
      Open Access
      Reply:
      Michael F. Goldberg, Morton F. Goldberg, R. Cerejo and A.H. Tayal
      American Journal of Neuroradiology August 2020, 41 (8) E64; DOI: https://doi.org/10.3174/ajnr.A6686
    • LETTER
      Open Access
      Acute Common Carotid Artery Bifurcation Thrombus: An Emerging Pattern of Acute Strokes in Patients with COVID-19?
      E. Gulko, W. Gomes, S. Ali, F. Al-Mufti and H. Mehta
      American Journal of Neuroradiology August 2020, 41 (8) E65-E66; DOI: https://doi.org/10.3174/ajnr.A6657
    • LETTER
      Open Access
      Augmented Reality
      M.K. O’Reilly, P.J. Heagerty, L.S. Gold, D.F. Kallmes and J.G. Jarvik
      American Journal of Neuroradiology August 2020, 41 (8) E67-E68; DOI: https://doi.org/10.3174/ajnr.A6587
    • LETTER
      Open Access
      Reply:
      J.A. Hirsch, R.V. Chandra, D. Beall, M. Frohbergh and K. Ong
      American Journal of Neuroradiology August 2020, 41 (8) E69-E70; DOI: https://doi.org/10.3174/ajnr.A6721
    • LETTER
      You have access
      The Significance and Challenge of Quantitative Hemodynamic Study in Moyamoya Disease
      J. Yu, Q. Du and J. Chen
      American Journal of Neuroradiology August 2020, 41 (8) E71; DOI: https://doi.org/10.3174/ajnr.A6517
    • Erratum
      You have access
      Erratum
      American Journal of Neuroradiology August 2020, 41 (8) E72; DOI: https://doi.org/10.3174/ajnr.A6660
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American Journal of Neuroradiology: 41 (8)
American Journal of Neuroradiology
Vol. 41, Issue 8
1 Aug 2020
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