AJNR Podcast

American Journal of Neuroradiology
  • 4.6 (28)
  • Medicine
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The American Journal of Neuroradiology (AJNR) is a scholarly, peer-reviewed journal that publishes Original Research and Review Articles relevant to the diagnostic, interventional, and functional imaging of the brain, head, neck, and spine. AJNR's monthly podcast include a review of Editor's Choices and Fellows' Journal Club selections and an author interview. The podcast is hosted by Francis Deng and George K. Vilanilam.

  1. 4d ago ·  Video

    Seeing the Difference: Imaging Insights into Cerebral Proliferative Angiopathy

    In this podcast episode, Dr. Vilanilam discusses “Cerebral Proliferative Angiopathy: Imaging Spectrum and Diagnostic Insights,” by first author Rai. Cerebral proliferative angiopathy is a rare cerebrovascular malformation that can mimic an arteriovenous malformation but has a fundamentally different vascular architecture and underlying physiology. This comprehensive review of 75 studies and 153 patients highlights its characteristic multimodal imaging features, including a diffuse vascular network intermingled with normal brain, absence of a compact nidus or dominant arterial feeders, frequent transdural recruitment, relatively limited early venous drainage, and evidence of chronic hypoperfusion. Dr. Vilanilam reviews the key CT, MRI, perfusion, and angiographic findings that help distinguish cerebral proliferative angiopathy from conventional arteriovenous malformations and other vascular mimics. Recognizing this distinction is critical because normal functioning brain is incorporated within the abnormal vascular network, substantially influencing treatment decisions and emphasizing the importance of accurate imaging diagnosis. Featured Article: Cerebral Proliferative Angiopathy: Imaging Spectrum and Diagnostic Insights

    Seeing the Difference: Imaging Insights into Cerebral Proliferative Angiopathy

  2. Aug 18

    Follow-Up or Forget It? Managing Indeterminate T1-Hypointense Spine Lesions

    In this podcast episode, Dr. Vilanilam discusses "Indeterminate T1-Hypointense Spine Lesions: Prevalence of Malignancy in the Absence of Aggressive Imaging Features," by first author Barkovich. Indeterminate low-T1-signal vertebral lesions are commonly encountered on spine MRI, but deciding which lesions require additional imaging or follow-up can be challenging. This study examines the outcomes of 278 such lesions and finds an overall malignancy rate of only 2%, with all malignant lesions representing metastases in patients with known or concurrently diagnosed extraskeletal metastatic disease and no primary malignant bone tumors identified. Dr. Vilanilam reviews the imaging features of these lesions, the importance of incorporating the patient's oncologic history into risk assessment, and the implications for follow-up recommendations. The findings suggest that short-interval imaging may be appropriate when there is meaningful concern for metastatic disease, while follow-up may not be necessary for low-risk patients without aggressive imaging features or extraskeletal metastatic disease.

    Follow-Up or Forget It? Managing Indeterminate T1-Hypointense Spine Lesions

  3. Aug 12

    Traumatic Hemorrhage Expansion feat. Caline Azzi

    In this AJNR Podcast author interview, Dr. Francis Deng speaks with Dr. Caline Azzi about recent studies identifying imaging and clinical predictors of expansion in traumatic subdural, subarachnoid, and intraparenchymal hemorrhage. Hemorrhage size, multicompartment injury, coagulopathy, mass effect, and neurologic status may help determine which patients truly need routine repeat CT. Related Articles: Risk Stratification for Traumatic SAH Enlargement and Surgical Intervention: Guides to Follow-Up Imaging in Patients with Trauma Predictive Factors for Traumatic Intraparenchymal Hemorrhage Expansion and Its Clinical Outcomes Improving the management of acute subdural hematomas; identifying characteristics associated with acute subdural hematoma size and expansion

    Traumatic Hemorrhage Expansion feat. Caline Azzi

  4. Jul 2

    Seeing It First: How Recognizing Sinking Flap Syndrome Can Change Patient Outcomes

    In this AJNR Article Summary, Dr. George Vilanilam discusses the article, "Sinking Flap Syndrome: Risk Factors, Outcomes, and the Role of Neuroradiology in Cranioplasty Timing." Sinking flap syndrome is a common yet frequently underrecognized complication of decompressive craniectomy, with imaging findings often preceding clinical deterioration. Recognition and reporting of key features - including a markedly sunken flap, ventricular compression, and significant midline shift (8 mm or greater) were associated with a two-fold reduction in time to cranioplasty highlighting the important role neuroradiologists can play in expediting definitive treatment and improving patient care.

    Seeing It First: How Recognizing Sinking Flap Syndrome Can Change Patient Outcomes

  5. May 28

    CTA Carotid Plaque-RADS

    In this AJNR Article Summary, Dr. Francis Deng reviews CTA-based Carotid Plaque-RADS and its role beyond stenosis grading. He explains the key imaging features that define plaque vulnerability, then highlights two AJNR studies showing that the system is learnable, reproducible, and clinically meaningful for predicting future stroke risk, especially in patients with only mild or moderate carotid stenosis. Visit the website to read the related articles. Carotid Plaque-RADS: Inter- and Intrareader Agreement and Learning Curve Analysis in CTA CTA-Based Carotid Plaque-RADS Classification Improves Risk Stratification for Ischemic Cerebrovascular Events

    CTA Carotid Plaque-RADS

  6. Apr 14

    Optimizing CSF-Venous Fistula Detection

    In this AJNR Article Summary, Dr. George Vilanilam discusses the article, "Maximizing the Conspicuity of Cerebrospinal Fluid–Venous Fistulas on Computed Tomography Myelography: Assessment of Contrast Density and Timing Effects." 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.

    Optimizing CSF-Venous Fistula Detection

  7. Mar 31

    Traumatic SAH Risk Stratification

    In this AJNR Article Summary, Dr. George Vilanilam discusses the article, "Risk Stratification for Traumatic Subarachnoid Hemorrhage Enlargement and Surgical Intervention: Guides to Follow-Up Imaging in Patients with Trauma." 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.

    Traumatic SAH Risk Stratification

  8. Mar 25

    Poststroke Collaterals on MRI feat. Cynthia Greene

    In this AJNR Author Interview, Dr. Francis Deng speaks with Dr. Cynthia Greene about her article, "Posttreatment Follow-Up MR Imaging Biomarkers of Collateral Status Are Associated with Short-Term Outcomes in Large-Vessel Acute Ischemic Stroke." 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.

    Poststroke Collaterals on MRI feat. Cynthia Greene
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About

The American Journal of Neuroradiology (AJNR) is a scholarly, peer-reviewed journal that publishes Original Research and Review Articles relevant to the diagnostic, interventional, and functional imaging of the brain, head, neck, and spine. AJNR's monthly podcast include a review of Editor's Choices and Fellows' Journal Club selections and an author interview. The podcast is hosted by Francis Deng and George K. Vilanilam.

Information

  • Creator
    American Journal of Neuroradiology
  • Years Active
    2009 - 2026
  • Episodes
    381
  • Rating
    Clean
  • Copyright
    All contents © 2026 American Society of Neuroradiology. All Rights Reserved
  • Show Website
    AJNR Podcast

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