Abstract #1657

Evaluating collateral circulation and its association with clinical outcomes in patients with ischemic stroke using random vessel-encoded ASL

Xiaoyue Ma^1,2, Yan Wang^1,2, Fengshan Yan^1,2, Xianchang Zhang³, Lirong Yan⁴, and Meiyun Wang^1,2

¹Radiology, Henan Provincial People's Hospital, Zhengzhou, China, ²Henan Key Laboratory of Neurological Imaging, Zhengzhou, China, ³MR Collaboration, Siemens Healthcare Ltd., Beijing, China, ⁴Stevens Neuroimaging Informatics Institute, Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States

This study aimed to explore the clinical value of random vessel-encoded arterial spin labeling (rVE-ASL) in evaluating the collateral status as well as its association with clinical outcomes in patients with ischemic stroke. Results suggested that the rVE-ASL findings were consistent with DSA/CTA findings in characterizing collateral flows and poor collateral flows evaluated by rVE-ASL were associated with poor outcomes. The rVE-ASL could be a potentially useful tool to assess the cerebral collateral circulation in patients with ischemic stroke and predict the clinical outcome.

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