摘要
目的探讨MRI不同扫描模式在诊断急性期脑梗死合并脑微出血患者中的应用价值。方法以2016年1月-2018年1月本院收治的60例急性期脑梗死患者为研究对象,均行常规MRI、弥散加权成像(DWI)和磁敏感加权成像(SWI)序列扫描,比较MRI不同扫描模式在诊断急性期脑梗死合并脑微出血患者中的应用价值。结果急性期脑梗死合并A型脑微出血在SWI序列上表现为点状信号丢失、周围无水肿、无占位效应,DWI呈低信号,T2WI、FLAIR呈稍低信号,T1WI呈类圆形等或低信号影;急性期脑梗死合并B型脑微出血SWI序列上呈小片状不规则低信号,DWI呈多发点片状低信号影或混杂信号影,T1WI呈等或偏高信号,T2WI呈等或略低信号,FLAIR呈略低信号;SWI对脑微出血检出率明显高于DWI和MRI常规序列(χ~2=49.412、36.505,P<0.05);急性期脑梗死合并脑微出血患者MRI不同扫描方式(DWI序列和SWI序列)影像学图像各具特征。结论 SWI诊断急性期脑梗死合并脑微出血患者中的应用价值较MRI常规序列和DWI序列更高,更具临床推广应用优势。
Objective To investigate the value of different MRI scan patterns in the diagnosis of acute cerebral infarction with cerebral microbleeds. Methods A total of 60 patients with acute cerebral infarction treated in the hospital from January 2016 to January 2018 were enrolled in the study. All patients underwent conventional MRI, diffusion weighted imaging（DWI） and magnetic susceptibility weighted imaging（SWI） sequence scanning. The value of different MRI scan patterns in diagnosing acute cerebral infarction with cerebral microbleeds was compared. Results Patients with acute cerebral infarction and type A cerebral microbleeds mainly manifested as spot signal loss, non peripheral edema and non occupying effect on SWI sequence, low signal on DWI, slightly lower signals on T2 WI and FLAIR, quasi-circular equal or low density shadow on T1 WI. Acute cerebral infarction with type B cerebral microbleeds showed small patchy irregular low signal on SWI sequence, multiple spotted and patchy low signal or mixed signal shadow on DWI, equal or slightly higher signal on T1 WI, equal or slightly lower signal on T2 WI, and slightly lower signal on FLAIR. The detection rate of cerebral microbleeds by SWI was significantly higher than that by DWI or MRI routine sequence（χ^2= 49.412, 36.505, P〈0.05）. Images of different MRI scan patterns（DWI sequence and SWI sequence） for patients with acute cerebral infarction and cerebral microbleeds were characteristic. Conclusion The value of SWI in the diagnosis of acute cerebral infarction with cerebral microbleeds is higher than that of MRI routine sequence or DWI sequenc. It has more advantages in clinical application.
作者
刘志英
赵利红
唐聚花
LIU Zhi-ying;ZHAO Li-hong;TANG Ju-hua(Department of Neurology,the Fiifteenth People＇s Hospital of Zhengzhou City,Zhengzhou 450041,Henan Province,China)
出处
《中国CT和MRI杂志》
2018年第7期65-67,共3页
Chinese Journal of CT and MRI
关键词
急性期脑梗死
脑微出血
MRI
扫描模式
Acute Cerebral Infarction
Cerebral Microbleeds
MRI
Scan Pattern
