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AJNR Awards, New Junior Editors, and more. Read the latest AJNR updates


Improved Turnaround Times | Median time to first decision: 12 days

MY CONTENT

  • EDITOR'S CHOICEHead and Neck Imaging
    You have access
    Are Gadolinium-Enhanced MR Sequences Needed in Simultaneous 18F-FDG-PET/MRI for Tumor Delineation in Head and Neck Cancer?
    N. Pyatigorskaya, R. De Laroche, G. Bera, A. Giron, C. Bertolus, G. Herve, E. Chambenois, S. Bergeret, D. Dormont, M. Amor-Sahli and A. Kas
    American Journal of Neuroradiology October 2020, 41 (10) 1888-1896; DOI: https://doi.org/10.3174/ajnr.A6764

    Consecutive patients who underwent simultaneous head and neck 18F-FDG-PET/MR imaging staging or restaging followed by surgery were retrospectively included in this study. Local tumor invasion and lymph node extension were assessed by 2 rater groups in 45 head and neck anatomic regions using 18F-FDG-PET/MR imaging. Two reading sessions were performed, one without contrast-enhanced sequences (using only T1WI, T2WI, and PET images) and a second with additional T1-weighted postcontrast sequences. The k concordance coefficient between the reading sessions and sensitivity and specificity for each region were calculated. There was excellent agreement between the contrast-free and postgadolinium reading sessions in delineating precise tumor extension in the 45 anatomic regions studied. The diagnostic accuracy did not differ between contrast-free and postgadolinium reading sessions, being 0.97 for both groups and both reading sessions. The authors conclude that gadolinium-based contrast administration showed no added value for accurate characterization of head and neck primary tumor extension and could possibly be avoided in the PET/MR imaging head and neck workflow.

  • Head and Neck Imaging
    Open Access
    Middle Meningeal Artery: Anatomy and Variations
    S. Bonasia, S. Smajda, G. Ciccio and T. Robert
    American Journal of Neuroradiology October 2020, 41 (10) 1777-1785; DOI: https://doi.org/10.3174/ajnr.A6739
  • Adult Brain
    Open Access
    Pressing Issues in COVID-19: Probable Cause to Seize SARS-CoV-2 for Its Preferential Involvement of Posterior Circulation Manifesting as Severe Posterior Reversible Encephalopathy Syndrome and Posterior Strokes
    F. D’Amore, G. Vinacci, E. Agosti, L.P. Cariddi, A.V. Terrana, F.A. Vizzari, M. Mauri and A. Giorgianni
    American Journal of Neuroradiology October 2020, 41 (10) 1800-1803; DOI: https://doi.org/10.3174/ajnr.A6679
  • Head and Neck Imaging
    You have access
    Prediction of Human Papillomavirus Status and Overall Survival in Patients with Untreated Oropharyngeal Squamous Cell Carcinoma: Development and Validation of CT-Based Radiomics
    Y. Choi, Y. Nam, J. Jang, N.-Y. Shin, K.-J. Ahn, B.-S. Kim, Y.-S. Lee and M.-S. Kim
    American Journal of Neuroradiology October 2020, 41 (10) 1897-1904; DOI: https://doi.org/10.3174/ajnr.A6756
  • FELLOWS' JOURNAL CLUBHead and Neck Imaging
    Open Access
    Olfactory Bulb Signal Abnormality in Patients with COVID-19 Who Present with Neurologic Symptoms
    S.B. Strauss, J.E. Lantos, L.A. Heier, D.R. Shatzkes and C.D. Phillips
    American Journal of Neuroradiology October 2020, 41 (10) 1882-1887; DOI: https://doi.org/10.3174/ajnr.A6751

    This retrospective case-control study compared the olfactory bulb and olfactory tract signal intensity on thin-section T2WI and postcontrast 3D T2 FLAIR images in patients with COVID-19 and neurologic symptoms, and age-matched controls imaged for olfactory dysfunction. Olfactory bulb 3D T2-FLAIR signal intensity was greater in the patients with COVID-19 and neurologic symptoms compared with an age-matched control group with olfactory dysfunction, and this was qualitatively apparent in 4 of 12 patients with COVID-19. Analysis of these preliminary findings suggests that olfactory apparatus vulnerability to COVID-19 might be supported on conventional neuroimaging and may serve as a noninvasive biomarker of infection.

  • Pediatric Neuroimaging
    Open Access
    COVID-19-Associated Cytotoxic Lesions of the Corpus Callosum
    P. Gaur, L. Dixon, B. Jones, H. Lyall and W. Jan
    American Journal of Neuroradiology October 2020, 41 (10) 1905-1907; DOI: https://doi.org/10.3174/ajnr.A6713
  • Neurointervention
    You have access
    Quantifying Intra-Arterial Verapamil Response as a Diagnostic Tool for Reversible Cerebral Vasoconstriction Syndrome
    J.M. Sequeiros, J.A. Roa, R.P. Sabotin, S. Dandapat, S. Ortega-Gutierrez, E.C. Leira, C.P. Derdeyn, G. Bathla, D.M. Hasan and E.A. Samaniego
    American Journal of Neuroradiology October 2020, 41 (10) 1869-1875; DOI: https://doi.org/10.3174/ajnr.A6772
  • Neurointervention
    You have access
    The Dilator-Dotter Technique: A Modified Method of Rapid Internal Carotid Artery Revascularization in Acute Ischemic Stroke
    K. Amuluru, D. Sahlein, F. Al-Mufti, T. Payner, C. Kulwin, A. DeNardo and J. Scott
    American Journal of Neuroradiology October 2020, 41 (10) 1863-1868; DOI: https://doi.org/10.3174/ajnr.A6733
  • Neurointervention
    You have access
    Intraprocedural Flat Panel Detector Rotational Angiography and an Image Fusion Technique for Delivery of a Microcatheter into the Targeted Shunt Pouch of a Dural Arteriovenous Fistula
    J.H. Choi, D.Y. Cho, Y.S. Shin and B.-S. Kim
    American Journal of Neuroradiology October 2020, 41 (10) 1876-1878; DOI: https://doi.org/10.3174/ajnr.A6724
  • EDITOR'S CHOICEAdult Brain
    Open Access
    Tentorial Venous Anatomy: Variation in the Healthy Population
    J.S. Rosenblum, J.M. Tunacao, V. Chandrashekhar, A. Jha, M. Neto, C. Weiss, J. Smirniotopoulos, B.R. Rosenblum and J.D. Heiss
    American Journal of Neuroradiology October 2020, 41 (10) 1825-1832; DOI: https://doi.org/10.3174/ajnr.A6775

    The authors retrospectively reviewed tentorial venous anatomy of the head using CTA/CTV performed for routine care or research purposes in 238 patients. Tentorial vein development was related to the ring configuration of the tentorial sinuses. There were 3 configurations: Groups 1A and 1B had ring configuration, while group 2 did not. Group 1A had a medialized ring configuration, and group 1B had a lateralized ring configuration. Measurements of skull base development were predictive of these groups. The ring configuration of group 1 was related to the presence of a split confluens, which correlated with a decreased internal auditory canal-petroclival fissure angle. Configuration 1A was related to the degree of petrous apex pneumatization.

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