Abstract #2458

Arterial Spin Labeling Evaluation of Severity of Hypoperfusion in Symptomatic Intracranial Atherosclerotic Stenosis

Jinhao Lyu^1,2, Ning Ma³, Bing Wu⁴, Xiaoxiao Ma¹, Lin Ma¹, Zhongrong Miao³, and Xin Lou¹

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

Multiple post labeling delay arterial spin labeling provide dynamic perfusion information in patients with intracranial artery atherosclerostic stenosis, and is of useful to study collatera circulation. In this study, two PLD ASL was used to evaluate the severity of hypoperfusion in patients with unilateral middle cerebral artery (MCA) stenosis and we found that the severity of hypoperfusion assessed by two PLD ASL was significantly correlated with collateral circulation and associated with recurrent ischemic stroke in these patients.

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