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Abstract #2129

Evolution of Diffuse Wall Thickening of Petrous Internal Carotid Artery Peri-Revascularization: A MR Vessel Wall Imaging Follow-up Study

Xiaoyi Chen1, Huimin Xu2, Tao Wang3, Jin Zhang4, Huiyu Qiao5, Hualu Han5, and Xihai Zhao5
1Department of Radiology, Beijing Geriatric Hospital, Beijing, China, 2Department of Radiology, Peking University Third Hospital, Beijing, China, 3Department of Neurosurgery, Peking University Third Hospital, Beijing, China, 4Department of Radiology, Renji Hospital, Shanghai Jiaotong University, Shanghai, China, 5Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University School of Medicine, Beijing, China

Carotid artery severe stenosis or occlusion will lead to ischemia within the vessel wall and diffuse wall thickening (DWT) in the downstream arterial segment. The revascularization surgery is an effective treatment for carotid artery stenosis. This study investigated the peri-revascularization change of DWT in petrous internal carotid artery (ICA) among carotid atherosclerotic patients using MR vessel wall imaging. We found that the DWT in ipsilateral petrous ICA recovered after revascularization treatment (1.68±0.68 mm vs. 1.39±0.47 mm, P =0.002) and it began to recover one month later after the revascularization.

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