Abstract #4717

Determinants of the Presence and Intensity of Hyperintense Vessels on Fluid-Attenuated Inversion Recovery Imaging in Intracranial Atherosclerotic Stenosis or Occlusion

Jinhao Lyu¹, Ning Ma², Xiaoxiao Ma³, Bing Wu⁴, Lin Ma³, and Xin Lou³

¹Radiology, Chinese PLA General Hospital, Beijing, People's Republic of China, ²Beijing Tiantan Hospital, Capital Medical University, Beijing, People's Republic of China, ³Radiology, Chinese PLA General Hospital, People's Republic of China, ⁴GE healthcare China, People's Republic of China

The correlation of fluid-attenuated inversion recovery imaging (FLAIR) vascular hyperintensity (FVH) and collateral are still in discrepancy in intracranial atherosclerotic stenosis or occlusion. In the present study, we used territorial arterial spin labeling (ASL) and two post labeling delay (1.5s and 2.5s) ASL to study the leptomeningeal collateral and hemodynamic status in patients with different intensity of FVH, and concluded that FVH may be related to poor collateralization and hemodynamic impairments.

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