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Abstract #2731

Differential Middle Cerebral Artery Plaque Characteristics in Patients with Transient Ischemic Attack and Ischemic Stroke: A High-Resolution MR Vessel Wall Imaging Study

Jiayu Xiao1, Qi Yang2, Zhaoyang Fan1, Shujuan Li3, Fang Wu2, Debiao Li1, and Tao Jiang4

1Biomedical Imaging Research Institute, Cedars Sinai Medical Center, los angeles, CA, United States, 2Radiology, Xuanwu Hospital Capital Medical University, Beijing, China, 3Neurology, Beijing Chaoyang Hospital, Capital Medical university, Beijing, China, 4Radiology, Beijing Chaoyang Hospital, Capital Medical university, Beijing, China

This study is to compare the characteristics of intracranial plaques between TIA and stroke patients using VWI. Sixty-two patients (31 TIA and 31 stroke) with MCA stenosis were enrolled in the study. Routine brain MRI, TOF-MRA, pre and post- contrast VWI were performed on each patient. Morphological features of the culprit plaque were compared between the two groups. TIA group had a lower occurrence of hyperintensity plaque, plaque surface irregularity and enhancement grade, those features showed no statistically significant differences and also the degree of stenosis and RI. VWI is useful modality for assessing the intracranial plaques in TIA patients.

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