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Abstract #2519

Optimized Fast Simultaneous Non-contrast Angiography and intraPlaque hemorrhage (fSNAP) imaging for intracranial arteries

Jia Ning 1 , Shuo Chen 1 , Jinnan Wang 2,3 , Xihai Zhao 1 , Chun Yuan 1,2 , and Huijun Chen 1

1 Center for Biomedical Imaging Research & Department of Biomedical Engineering, Tsinghua University, Beijing, China, 2 Department of radiology, University of Washington, Seattle, WA, United States, 3 Philips Research North America, United States

Simultaneous Non-contrast Angiography and intraPlaque hemorrhage (SNAP) imaging has been proposed to image the stenosis of artery and intraplaque hemorrahge (IPH) lesions in the atherosclerotic plaques in one scan Since the SNAP consists a TFE based reference scan for phase sensitive reconstruction, so the scan time is very long. A new proposed optimized fast SNAP contains a low-resolution reference scan is tested on intracranial arteries. Result shows that there is no significant difference in CNRs of SNAP and optimized fSNAP. Also, fSNAP gives a comparable visualization of smaller branches. The scan time of optimized fSNAP is 37.5% less than SNAP.

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