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 Yuan^1,4

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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