南方医科大学学报2020，Vol.40Issue(4)：459-462,4.DOI:10.12122/j.issn.1673-4254.2020.04.02
大面积大脑中动脉脑梗死取栓后弥散加权成像高信号逆转1例报告
Diffusion-weighted imaging hyperintensity is reversible in large middle cerebral artery infarction following thrombectomy:a case report
摘要
Abstract
Diffusion-weighted imaging (DWI) is currently the most sensitive technique to diagnose early ischemic stroke. DWI signal hyperintensity is usually considered to suggest irreversible infarct core, but recent studies demonstrated that DWI hyperintensity signal could be reversible on small embolic lesions. Herein we present a case in a 63-year-old male patient, who was admitted to the emergency department with altered mental status and complaint of weakness in the left arm and leg 6.8 h prior to the admission. Emergency cranial magnetic resonance imaging (MRI) and angiography (MRA) revealed occlusion of his right middle cerebral artery (MCA) and large lesions on DWI. The patient underwent intra-artery thrombectomy after evaluation in spite of the large volume of the DWI lesions up to 91.5 mL at the baseline. His right MCA was recanalized at 8.5 h from symptom onset. One week after the procedure, the patient showed reduced DWI lesion volume to 11.58 mL. In this case we observed the reversibility of a large lesion of the anterior artery circulation presenting with hyperintensity on DWI, suggesting that the clinical implication of DWI hyperintensity should be interpreted with caution, and a large volume of baseline DWI hyperintensity may not be a contraindication to thrombectomy. This conclusion, however, awaits further validation by future large-scale randomized controlled trials.关键词
弥散加权成像/可逆性/取栓Key words
diffusion weighted imaging/reversibility/thrombectomy引用本文复制引用
潘越,王冬梅,林镇洲,吴永明,姬仲..大面积大脑中动脉脑梗死取栓后弥散加权成像高信号逆转1例报告[J].南方医科大学学报,2020,40(4):459-462,4.基金项目
Supported by Guangdong Province Aid of Xinjiang Rural Science and Technology Development (Special Commissioner) Project (KTP20190278), Pilot Project of Technology Promotion and Poverty Alleviation by National Health Commission (2019JSTG31), and President Fund of Nanfang Hospital (No. 2016L010) 广东省援疆农村科技(特派员)项目(KTP20190278) （Special Commissioner）
国家卫生健康委技术推广扶贫试点项目(2019JSTG31) （2019JSTG31）
南方医院院长基金(2016L010) （2016L010）
