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Abstract #3607

Association of middle cerebral artery steno-occlusion with intraplaque hemorrhage with acute cerebral infarction: a magnetic resonance imaging study

Huilin Zhao 1 , Jinnan Wang 2 , Xiaosheng Liu 1 , Xihai Zhao 3 , Chun Yuan 4 , and Jianrong Xu 1

1 Radiology, Renji hospital, Shanghai Jiaotong University, Shanghai, Shanghai, China, 2 Philips Research North America, NY, United States, 3 Biomedical Engineering & Center for Biomedical Imaging Research,Tsinghua University, Beijing, China, 4 University of Washington, WA, United States

Further understanding of the characteristics of intracranial atherosclerosis with symptomatic middle cerebral artery (MCA) steno-occlusion could be helpful for stroke risk stratification and treatment strategy modification. This study sought to assess the association between infarction pattern and size and intraplaque hemorrhage (IPH) in patients with symptomatic MCA steno-occlusion lesion. Our key findings are that 36.8% IPH characterized by SNAP imaging exist in symptomatic steno-occlusion MCA. In additon, our findings indicate that IPH together with stenosis may account for the heterogeneity of infarct sizes and patterns.

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