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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