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Abstract #2192

An automated post-processing pipeline for the separation of intracranial and extracranial vessels in 7T TOF-MRA

Zihao Zhang 1,2 , Dehe Weng 3 , Jing An 3 , Zhentao Zuo 1 , Bo Wang 1 , Qingle Kong 1 , Ning Wei 1,2 , Yan Zhuo 1 , Xiaohong Joe Zhou 4 , and Rong Xue 1

1 State Key Lab of Brain and Cognitive Science, Beijing MR Center for Brain Research, Institute of Biophysics, Chinese Academy of Sciences, Beijing, Beijing, China, 2 Graduate School, University of Chinese Academy of Sciences, Beijing, Beijing, China, 3 Siemens Shenzhen Magnetic Resonance Ltd., Shenzhen, Guangdong, China, 4 Dept. of Radiology, Center for MR Research, University of Illinois, Chicago, Illinois, United States

An automated post-processing pipeline of TOF-MRA is proposed to separate intracranial and extracranial vessels, without the aid of T1w structural images. The post-processing uses nonlinear registration to produce ROIs in individual space. The pipeline was verified to provide clear MIP images of intracranial and extracranial vessels, respectively, which is useful in extra-intracranial bypass surgery.

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