摘要
目的:探讨多发性硬化(MS)与脑梗塞的核磁共振成像(MRI)病灶特征及鉴别方法。方法:分析临床确诊的MS228例及脑梗塞162例的脑部MRI病灶的大小、数量、分布和形态。结果:在MS长轴5~15mm的病灶为多,在脑梗塞25mm以上的病灶占多数。MS与脑梗塞组,有4个以上病灶的例数分别为91%、87%,两组无差异。卵圆形病灶,边缘清晰、光滑、高信号强度均匀一致病灶,与侧脑室相连接病灶,长轴与侧脑室壁相垂直病灶、胼底体病灶,脑干及小脑病灶等项目,在MS远多于脑梗塞组。然而,长轴平行于侧脑室病灶、主要分布于大脑灰质的病灶(占全病灶面积为50%以上),在脑梗塞多于MS,两组有极显著差异(P<001)。结论:4个以上长轴5~15mm的多发性小灶性病灶,边缘清晰、光滑、信号均匀一致病灶,与侧脑室壁相垂直病灶,卵圆形病灶,胼底体、脑干、小脑病灶为MS的MRI病灶特征;长轴平行于侧脑室的病灶及主要分布于大脑灰质的病灶为脑梗塞MRI病灶特征。
Objective: In order to obtain characteristic of MRI lesion in MS and cerebrovascular disorders.we made up 12 MPI diagnosis standards.Methods: T 2-weighted images of 228 patients with multiple sclerosis (MS) and 162 control patients have been studied by 1 5 Tesla MRI instrument. The control patients were selected for having white matter lesions on MRI and were brain infarction. We analyzed some parameters such as size,number,distribution and characteristic of shape of the lesions.Results: ①Ovoid lesions.②The signal of diffuseness lesion is homogeneous,smooth of rim and clear of outline. ③The lesion is abutting bodies of lateral ventricles and >5mm.④The major axes of diffuseness lesion is perpendicular to the wall of lateral ventricles.⑤Lesion of carpus callosum.⑥Infratentorial lesion.⑦Lesion of brainstem center.they are a good many in MS.We observed. ⑧The major axes of lesion parallels body of leteral ventricles .⑨Basal ganglia lesion occupies > 50% of total lesion area are numerous in brain infarction ( P<0 01 ).Conclusion: From the first to the seventh which stated in results were characteristic of MRI lesions for MS.otherwise,the eighth and the ninth were characteristic of MRI lesions for brain infarction.
出处
《河南医学研究》
CAS
1999年第1期38-40,共3页
Henan Medical Research
基金
河南省医学科学院科研基金
关键词
多发性硬化
脑梗塞
NMR
成像
病灶特征
鉴别诊断
multiple sclerosis
brain infarction
magnetic resonance imaging
characteristic