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Updated: Jul 14, 2026

Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
Published on: September 25, 2019
FLAIR vascular hyperintensity may predict stroke after TIA
Nerses Sanossian1, Beau M Ances, Samir H Shah
1Department of Neurology, University of Southern California, Los Angeles, CA 90033, United States. sanossia@yahoo.com
Abstract:
FLAIR vascular hyperintensities (FVH) are frequently encountered in acute ischemic stroke. We report two cases presenting with transient ischemic attack (TIA) with isolated FVH on MRI who went on to have a stroke during hospitalization. Isolated FVH may be an important imaging correlate in acute ischemia, and may suggest proximal occlusion with the presence of slow flow through retrograde leptomeningeal collaterals. Recognition of these subtle correlates may complement clinical predictors of stroke after TIA.
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