DWI在超急性期脑出血诊断中的临床应用研究  

Application of MR diffusion-weighted imaging in the diagnosis of hyperacute intracerebral hemorrhage

作　　者：王普清 张贵斌 刘焦枝 柳娟娟 罗韵文 黄本友 李晨旭 罗文浩 李光 

机构地区：[1]襄樊市第一人民医院神经科,湖北441000

出　　处：《脑与神经疾病杂志》2008年第3期168-170,共3页Journal of Brain and Nervous Diseases

摘　　要：目的:评价磁共振弥散加权成像(DWI)对超急性期脑出血诊断的准确性。方法:对卒中样起病,发病时间在6h以内,因怀疑缺血性脑血管病急诊行头部MRI检查,按文献Schellinger描述的超急性期脑出血MRI特征初步诊断脑出血,并随即行头部CT证实。10例患者均进行DWI、ADC图和常规MRI扫描,测算不同序列血肿体积,并与头部CT进行比较。结果:10例MRI初步诊断脑出血的患者均经CT确诊为脑出血,敏感性和特异性均为100%,超急性期脑出血血肿DWI的特征性表现为高低混杂信号,磁共振T2WI?DWI和ADC图显示血肿体积均大于CT,差异有显著性(P<0.01);而T1WI与CT的血肿体积无显著差异(P>0.05)。结论:DWI对超急性期脑出血诊断准确,有重要临床应用价值。Objective:To evaluate the accuracy of MR diffusion weighted imaging(DWI)in the diagnosis of hyperacute intracerebral hemorrhage(ICH).Methods:The patients with onset of stroke like symptoms underwent conventional MRI ﹑apparent diffusion coefficients(ADC)mapping and DWI within 6 hours.All patients that suggested a diagnosis of hyperacute intracerebral hemorrhage underwent CT.We measured and compared the size of the hematoma on CT and all MRI images.Results:DWI indicated intracerebral hemorrhage in 10 patients...

关 键 词：超急性期脑出血 磁共振 弥散加权成像 

分 类 号：R743.3[医药卫生—神经病学与精神病学]