不同缺血性卒中病因TOAST亚型的DWI改变特征  

Lesion Patterns In Ischemic Stroke TOAST Subtypes:A Diffusion-Weighted Imaging Study

作　　者：肖祖锋[1] 赖燕蔚[1] 刘少强[1] 余海[1] 陶立刚[1] 刘铮[1] 

机构地区：[1]赣南医学院第一附属医院,江西赣州341000

出　　处：《赣南医学院学报》2007年第6期858-859,共2页JOURNAL OF GANNAN MEDICAL UNIVERSITY

摘　　要：目的:分析缺血性卒中TOAST分型各亚型DWI显示的病灶特点。方法:对我院住院经磁共振成像诊断的缺血性卒中患者共262例,按照TOAST分型进行病因学分类,分析各亚型患者DWI所显示病灶的方式及特征。结果:缺血性卒中TOAST分型中,各型依次为SAA28.62%,LAA28.24%,SUE15.64%,SOU15.26%,CE12.21%;DWI未显示病灶20例(7.61%),SAA占55%,显示单个病灶130例(49.61%),≥1.5cm者LAA占46.55%,<1.5cm者SAA占71.62%,散发病灶者67例(25.57%),除CE较少外,各型之间无显著差异,多发病灶45例(17.17%),其中CE和LAA均为18.96%。结论:基于DWI显示的病灶特点,有助于缺血性卒中病因的阐明。Objective：To analysis lesion patterns on DWI in isehemie stroke TOAST subtypes. Methods：262 patients with isehemie stroke, diagnosed by MRI were classfied retrospectively according to TOAST subtype ciriteria, we analysed the characteristics and lesion pattens in different aetiologies of ischemic stroke. Results ： The most common underlying stroke subtype, in 75 （28.62%） patients was SAA ,LAA in 74（28.24% ） patients, CE in 32（ 12.21% ） patients,SOU in 40（ 15.26% ） patients,SUE in 41 （ 15.64% ） patients. According to lesion patterns on DWI, No lesions on DWI were found in 20 （7.61%）patients, mainly in SAA （55%）. Single lesion in 130（49.61% ） patients were divided into ≥ 1.5cm in LAA （46.55%）, and 〈 1.5cm in SAA （71.62%）. Scatted lesions in 69 （26.33%） patients were not speeific to any one elassficationg TOAST Subtypes, beside CE. Multiple lesions in 45 （ 17.17% ） patients were in CE and LAA （ 18.96% , respectively）. Conclusions：Lesion patterns based on DWI were helpful for defining aetiology of isehemic stroke.

关 键 词：磁共振 弥散加权成像 缺血性卒中 TOAST分型 

分 类 号：R445.2[医药卫生—影像医学与核医学]