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논문 기본 정보

자료유형
학술저널
저자정보
Ho Geol Woo Hyug-Gi Kim (Radiology Kyung Hee University Hospital Kyung Hee University College of Medicine Seoul Korea) Kyung Mi Lee (Radiology Kyung Hee University Hospital Kyung Hee University College of Medicine Seoul Korea) Sang Hee Ha (Department of Neurology Asan Medical Center Seoul Korea) HangJin Jo (Department of Mechanical Engineering & Division of Advanced Nuclear Engineering POSTECH Pohang Korea) Sung Hyuk Heo (Department of Neurology Kyung Hee University Hospital Seoul Korea) Dae-Il Chang (Department of Neurology Kyung Hee University Medical Center Seoul Korea) David S. Liebeskind (Department of Neurology University of California Los Angeles Los Angeles CA USA) Bum Joon Kim (Department of Neurology Asan Medical Center Seoul)
저널정보
대한뇌졸중학회 대한뇌졸중학회지 대한뇌졸중영문학회지 제25권 제1호
발행연도
2023.1
수록면
132 - 140 (9page)

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Background and Purpose Various mechanisms are involved in the etiology of stroke caused by atherosclerosis of the middle cerebral artery (MCA). Here, we compared differences in plaque nature and hemodynamic parameters according to stroke mechanism in patients with MCA atherosclerosis. Methods Consecutive patients with asymptomatic and symptomatic MCA atherosclerosis (≥50% stenosis) were enrolled. MCA plaque characteristics (location and plaque enhancement) and wall shear stress (WSS) were measured using high-resolution vessel wall and four-dimensional flow magnetic resonance imaging, respectively, at five points (initial, upstream, minimal lumen, downstream, and terminal). These parameters were compared between patients with asymptomatic and symptomatic MCA atherosclerosis with infarctions of different mechanisms (artery-to-artery embolism vs. local branch occlusion). Results In total, 110 patients (46 asymptomatic, 32 artery-to-artery embolisms, and 32 local branch occlusions) were investigated. Plaques were evenly distributed in the MCA of patients with asymptomatic MCA atherosclerosis, more commonly observed in the distal MCA of patients with artery-to-artery embolism, and in the middle MCA of patients with local branch occlusion. Maximum WSS and plaque enhancement were more prominent in the minimum lumen area of patients with asymptomatic MCA atherosclerosis or those with local branch occlusion, and were more prominent in the upstream area in those with artery-to-artery embolism. The elevated variability in the maximum WSS was related to stroke caused by artery-to-artery embolism. Conclusion Stroke caused by artery-to-artery embolism was related to plaque enhancement and the highest maximum WSS at the upstream point of the plaque, and was associated with elevated variability of maximum WSS.

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