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Abstract #2170

Validity of Three Dimensional Pseudo-Continuous Arterial Spin Labeling in Leptomeaningeal Collaterals Assessement for Patients with Unilateral Middle Cerebral Artery Stenosis

Jinhao Lyu 1 , Ning Ma 2 , Zhongrong Miao 2 , Lin Ma 1 , and Xin Lou 1

1 Department of Radiology, Chinese PLA General Hospital, Beijing, Beijing, China, 2 Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, Beijing, China

Three dimensional pseudo-continuous arterial spin labeling(3D pCASL) is able to differentiate delay arrived blood flow form leptomeaningeal collaterals in patients with middle cerebral artery stenosis by applying multiple post labeling delay(PLD). We compared multi-PLD 3D pCASL with conventional angiography capillary index score(CIS) system in leptomeaningeal collaterals assessment.

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