Fluid-attenuated inversion recovery vascular hyperintensity-diffusion-weighted imaging mismatch and functional outcome after endovascular reperfusion therapy for acute ischemic stroke

医学 高强度 四分位间距 放射科 改良兰金量表 颈内动脉 大脑中动脉 冲程(发动机) 闭塞 流体衰减反转恢复 置信区间 磁共振成像 缺血 心脏病学 内科学 缺血性中风 机械工程 工程类
作者
Keisuke Tokunaga,So Tokunaga,Kenta Hara,Masahiro Yasaka,Yasushi Okada,Takanari Kitazono,Tomoyuki Tsumoto
出处
期刊:Interventional Neuroradiology [SAGE Publishing]
卷期号:30 (2): 189-194 被引量:2
标识
DOI:10.1177/15910199221113900
摘要

Background Fluid-attenuated inversion recovery vascular hyperintensity (FVH) outside of the diffusion-weighted imaging (DWI) lesion, termed FVH-DWI mismatch, may represent penumbral tissue with good collateral status. Methods Consecutive patients who underwent endovascular reperfusion therapy (EVT) for acute internal carotid artery (ICA) or middle cerebral artery (MCA)-M1 occlusion were enrolled. FVH-DWI mismatch score was defined as the number of cortical Alberta Stroke Program Early CT Score areas (I and M1 to M6) that involved FVH but no DWI lesion (0 to 7 points). The outcome measure was set as good functional outcome, defined as a modified Rankin Scale score of 0 to 2, at 90 days after onset. Results Of 196 consecutive patients who underwent EVT for acute ICA or MCA-M1 occlusion, 32 without brain MRI before EVT were excluded, and the remaining 164 were analyzed. The median FVH-DWI mismatch score was 2 (interquartile range, 0 to 4). At 90 days after EVT, 2 patients were lost-to follow-up, and 73 had good functional outcome. The frequency of good functional outcome at 90 days after EVT increased significantly with increasing FVH-DWI mismatch score (P for trend <0.001). FVH-DWI mismatch score was independently associated with good functional outcome at 90 days after onset (adjusted odds ratio per 1 point,1.46; 95% confidence interval, 1.15–1.89). Conclusions Patients with large FVH-DWI mismatch had good functional outcome after EVT for acute ICA or MCA-M1 occlusion.
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