出血性脑梗死MRI表现和分型及其临床意义

Manifestation and Type Of MRI and its significance In Hemorrhagic Cerebral Infarction

目的 探讨出血性脑梗死的MRI表现及分型与临床关系。方法 收集 2 0 0 0～ 2 0 0 3年在我院诊治的 13例出血性脑梗死MRI资料。采用SEIMENSImpact 1.0TMR成像仪 ,SE序列行轴位T1WI、T2 WI及矢状位T2 WI,必要时增加MRA。分析MRI表现 ,根据梗死、出血的形态、范围进行MRI分型。结果 I型 1例 ,II型8例 ,III型 2例 ,混合型 (II+III) 2例。脑梗死MRI表现为斑片状长T1长T2 信号 ,边界较清晰 ,周围有轻度水肿 ,占位效应不明显。出血表现为短T1高信号 ,位于梗塞区内、边缘呈斑片状或位于邻近脑回表面呈线样。结论 出血性脑梗死有典型的MRI表现 。

Objective To study the manifestation, type and clinical relation of MRI in hemorrhagic cerebral infarction.Methods MRI data 13 cases with hemorrhagic cerebral infarction in our hospital (2000～2003) were collected,9 cases of male.4 cases of female, whose age ranged from 36 to 79.The they nere scanned with transverse T 1WI,T 2WI and sagittal T 2WI in SE study by SEIMENS Impact 1.0T MR normal,necessarily MRA was used. According to the position/shape or scope of infarction and hemorrhage. MRI type was typed.Results They were classified into type I(1 case),type II(8 cases),type III(2 cases) and mixed type(2 cases).On MRI,infarction showed spot slice-like long T 1,long T 2 signal, whose boundary was clear and surrounding contained little dropsy. Hemorrhage showed high signal on T 1WI in infarction area with patch border or neighboring brain gyrus face showed bg line-like.Conclusion There are typical manifestation of MRI in hemorrhagic cerebral infarction, and MRI type is very important for clinical treatment and evaluation of prognosis.