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Abstract #4761

Can 3D pCASL be another predictor to evaluate the collateral Perfusion in Patients with severe intracranial arterial stenosis?

Xin Lou 1 , Diandian Huang 1 , Lin Ma 1 , and Kaining Shi 2

1 Department of Radiology, Chinese PLA General Hospital, Beijing, Beijing, China, 2 MR Research (China), General Electric Company GE ( China ) Co., Ltd.-Healthcare, Beijing, Beijing, China

DSA remains the method that can best measure collateral extents, but it is relatively time-consuming, invasive, and costly. Determining the presence and adequacy of collateral blood flow is important in patients with severe intracranial stenosis or occlusion due to collateral flow can maintain cerebral circulation and may be another potential therapeutic target in acute ischemic stroke. Our study suggest that multi-post labeling delay time three dimensional pseudo-continuous arterial spin labelling technique may be a useful tool to investigate the collateral perfusion in patients with intracranial arterial stenosis.

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