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Abstract #2458

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

Jinhao Lyu1,2, 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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