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Abstract #4705

Evaluation of collaterals: comparison between cerebral perfusion using 3D TASL and FVH in unilateral internal carotid artery stenosis

Xinbo Xing1,2, Ting Wang1, Jinhao Lv1, Xiaoxiao Ma1, Jiafei Yang2, Lin Ma1, and Xin Lou1

1Radiology, Chinese PLA general hospital, Beijing, People's Republic of China, 2Radiology, First affiliated hospital of Chinese PLA general hospital, Beijing, People's Republic of China

As a critical result in different researches the sign of FHV refers to the hemodynamic impairment and slow retrograde flow in leptomeningeal collaterals with or without good clinical outcome. We collected MR imaging data of 32 patients with unilateral ICA stenosis-occlusion who all underwent MR examinations by using 3D tASL perfusion imaging and T2-FLAIR. The tASL perfusion scores were compared between in FVH(-) group (14 patients) and FVH(+) group (18 patients), and there was no difference in the 2 groups. The result showed that 3D tASL perfusion MRI may be a useful non-invasive tool to identify the collateral flow.

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