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Abstract #2171

Interstudy and intraobserver reproducibility of high-resolution MRI in evaluating basilar atherosclerotic plaque at 3Tesla

Luguang Chen 1 , Xia Tian 1 , Qi Liu 1 , Chao Ma 1 , Qian Zhan 1 , Xuefeng Zhang 1 , Yuanliang Jiang 1 , and Jianping Lu 1

1 Department of Radiology,Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, Shanghai, China

Intracranial artery atherosclerosis is increasingly being recognized as a major cause of stroke worldwide, and patients with intracranial steno-occlusive disease have an augmented risk of vascular events. Several imaging modalities, including digital subtraction angiography, computed tomography angiography, and magnetic resonance imaging (MRI), are used to assess intracranial atherosclerosis. However, dark blood high-resolution MRI (HRMRI) superiors to other techniques in delineating the wall of the basilar artery (BA) because it is noninvasive and radiation-free.To our knowledge, the scan and rescan reproducibility of quantification of BA plaque has not reported. Therefore, the purpose of the present study is to evaluate of the interscan and intraobserver reproducibility of BA plaque employing dark blood HRMRI at 3Tesla.

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