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Abstract #3583

Accurately Measured Collateral Perfusion in Stroke Patients Using Multi-TI Arterial Spin-Labeling

Tianyi Qian 1 , Zhiwei Zuo 2 , Josef Pfeuffer 3 , Yuehua Pu 4 , Penggang Qiao 2 , Liping Liu 4 , and Gongjie Li 2

1 MR Collaborations NE Asia, Siemens Healthcare, Beijing, Beijing, China, 2 Radiology, Affiliated hospital of Academy of Military Medical Sciences, Beijing, China, 3 Application Development, Siemens Healthcare, Erlangen, Germany, 4 Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China

A 3D multi-TI arterial spin-labeling (mTI-ASL) protocol had been applied to measure the blood perfusion of stroke patients. Both the bolus arrival time and relCBF obtained from fitting the hemodynamic response curve were agreed with the results of CT perfusion. The accurate timing and relCBF obtained by mTI-ASL could provide valuable information for evaluating collateral circulation.

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