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Abstract #2768

Identification of Intrapalque Hemorrhage in Carotid Artery by Simultaneous Non-contrast Angiography and intraPlaque hemorrhage (SNAP) Imaging: A Comparison Study with MP-RAGE

Xihai Zhao1, Dongye Li2, Huilin Zhao3, Xiaoyi Chen2, Huiyu Qiao1, Le He1, Rui Li1, Jianrong Xu3, and Chun Yuan1,4

1Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University, Beijing, People's Republic of China, 2Beijing Institute for Brain Disorders, Beijing, People's Republic of China, 3Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China, 4Department of Radiology, University of Washington, Seattle, WA, United States

It is important to accurately identify carotid artery intraplaque hemorrhage (IPH) due to its significant association with ischemic stroke. MP-RAGE sequence has been demonstrated to be the best approach to detect carotid IPH. Recently, investigators proposed SNAP imaging technique which allows non-contrast MR angiography and identifying IPH simultaneously. This study sought to investigate the performance of SNAP imaging in detecting carotid IPH by comparing with MP-RAGE. We found that SNAP imaging detected more IPHs and showed larger IPH size than MP-RAGE, suggesting SNAP imaging might be a sensitive imaging tool to detect IPH.

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