Specificity of spontaneous intracranial hypotension MRI scoring feat. Ajay Madhavan
Release Date: 10/01/2025
Optimizing CSF-Venous Fistula Detection
AJNR Podcasts
In this AJNR Article Summary, Dr. George Vilanilam discusses the article, “.” Contrast density, not just timing, plays the dominant role in detecting CSF-venous fistulas, with higher subarachnoid contrast significantly improving diagnostic confidence. These findings support prioritizing contrast pooling strategies during CT myelography to enhance fistula detection in patients with spontaneous intracranial hypotension.
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Traumatic SAH Risk Stratification
AJNR Podcasts
In this AJNR Article Summary, Dr. George Vilanilam discusses the article, “.” Not all traumatic subarachnoid hemorrhages behave the same - risk factors such as coagulopathy, concurrent intracranial hemorrhage, and low Glasgow Coma Scale scores predict hemorrhage progression and need for intervention. A risk-stratified imaging approach may reduce unnecessary repeat CT scans while focusing surveillance on patients most likely to deteriorate.
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Poststroke Collaterals on MRI feat. Cynthia Greene
AJNR Podcasts
In this AJNR Author Interview, Dr. Francis Deng speaks with Dr. Cynthia Greene about her article, “.” In a retrospective study of follow-up MRI after anterior-circulation large-vessel occlusion stroke, a greater burden of FLAIR hyperintense vessels was associated with worse short-term neurologic outcomes, even among successfully reperfused patients, suggesting persistent FLAIR hyperintense vessels may mark ongoing perfusion abnormality or possible no-reflow physiology.
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CTA for Strangulation feat. Jimmy Moon
AJNR Podcasts
In this AJNR Author Interview, Dr. Francis Deng speaks with Dr. Jimmy Moon about his article, "". In a retrospective review, the yield of CTA neck for blunt cerebrovascular injury in patients who presented after strangulation was 1 in 138 (0.7%), suggesting the broad use of CTAs in this setting may be of low value.
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Menière Disease Associated Vestibular Aqueduct Hypoplasia feat. Amy Juliano
AJNR Podcasts
In this AJNR Podcast Author Interview, Dr. Francis Deng and Dr. Amy Juliano discuss how CT can subtype Menière disease by assessing the vestibular aqueduct and adjacent bone. During normal childhood, the angular trajectory of the vestibular aqueduct progressively narrows; an angle greater than 120 degrees after age 12 indicates adult-persistent hypoplasia and thus the hypoplastic endolymphatic sac endotype rather than normal maturation. A retrolabyrinthine bone thickness of at least 1.2 mm serves as a practical surrogate for a mature vestibular aqueduct orientation, reliably excluding the...
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Post-Radiation Carotid Disease
AJNR Podcasts
In this AJNR Article Summary, Dr. George Vilanilam discusses the article, “”. Low‑density carotid plaque on imaging may signal accelerated stenosis progression in post‑radiation patients, highlighting the need for earlier intervention and a shift toward evaluating plaque composition, not just degree of narrowing, to help prevent stroke in this high‑risk group.
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CT Perfusion Timing feat. Amir Khadivi
AJNR Podcasts
In this AJNR Fellows' Journal Club article summary, Dr. Francis Deng and Dr. Amir Khadivi discuss the article by Proner et al., "" They discuss the authors' findings that cardiac arrhythmias and older age are independent predictors of nondiagnostic CTP exams. Specifically, these factors often lead to the truncation of reference vessel time-attenuation curves that fail to reach equilibrium within a 45-second acquisition window.
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Vertebral Artery Injury Grading
AJNR Podcasts
Dr. Francis Deng discusses the article by Vankawala et al. entitled "." The Biffl grading scale assess blunt cerebrovascular injury severity, but its prognostic validity for vertebral artery injuries with respect to stroke risk remains controversial.
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AI intracranial aneurysm detection feat. Babatunde Akinpelu
AJNR Podcasts
In this AJNR Author Interview, Dr. Francis Deng discusses with Dr. Babatunde Akinpelu the article "." Neuroradiologists performed better than a commercial AI program for intracranial aneurysm detection in sensitivity and accuracy, while achieving comparable specificity. Common failure modes are reviewed.
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Sudden Sensorineural Hearing Loss
AJNR Podcasts
In this AJNR article summary, Dr. Francis Deng reviews a study, from corresponding author Dr. Katherine Reinshagen, entitled "". In this large cohort, the yield of MRI for relevant findings was 5.9%, including tumors in less than 3%. The spectrum of pathology is illustrated
info_outlineDr. Francis Deng interviews Dr. Ajay Madhavan about his article "Evaluation of Spontaneous Intracranial Hypotension Probabilistic Brain MRI Scoring Systems in Normal Patients" published in the September issue of AJNR.