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Abstract #3255

Consistency of FLAIR vascular hyperintensity (FVH) and arterial transit artifact (ATA) in 3D ASL imaging in patients with unilateral MCA stenosis

Peipei Chang1, Yanwei Miao1, Yiwei Che1, Yuhan Jiang1, Li Yang1, Lizhi Xie2, and Kaiyu Wang2

1The First Affiliated Hospital of Dalian Medical University, Dalian, China, 2GE Healthcare China, Beijing, China

Arterial spin labeling (ASL), a noncontrast method of measuring CBF has become feasible in the clinical setting. Serpiginous high intensity structures (ASL) are seen in the ischemic tissue on ASL, prior studies suggested that ATA may represent collateral flow. On the other hand, FVHs are related to hemodynamic impairment and represent slow retrograde flow in leptomeningeal collaterals. Our aim was to compare the consistency of the occurrence of ATA relative to that of FVH in patients with proximal MCA occlusion.

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