摘要
目的 明确弥散加权成像 (DWI)对超急性期脑梗塞的诊断价值 ,探讨DWI缺血损伤体积与预后的关系。方法 将 2 1例患者分为超急性期、急性期、亚急性期、慢性期。分别计算出各期的DWI及T2 WI上缺血损伤体积和临床评分。结果 DWI对识别超急性期脑梗塞缺血损伤达 10 0 %。急性期、亚急性期、慢性期T2 WI缺血损伤体积比DWI的大 (P <0 .0 1)。超急性期DWI缺血损伤体积与慢性期临床评分有显著相关性 (P <0 .0 5 )。超急性期、慢性期DWI缺血损伤的体积与相应的临床评分有显著相关 (P <0 .0 5、P <0 .0 1)。结论 DWI对识别超急性期梗塞的缺血损伤优于常规磁共振扫描。
Objective To confirm the diagnostic value of DWI in superacute cerebral infarction and analyze the prognostic value of the volume of ischemic lesions on superacute DWI scans. Methods Twenty one patients onset within 6 hours were divided into superacute stage,acute stage,subacute stage,chronic stage.Volume of ischemic lesions on DWI and T 2WI were measured respectively. Results All of the ischemic lesions were detected on superacute DWI scans. The volume of lesions on DWI scans significantly correlated with clinical outcome in superacute stage, chronic stage ( P <0.05). Conclusion DWI is superior to conventional MRI in detecting superacute ischemic lesions.Lesion size is a potential parameter for predicting clinical outcome in superacute infarction patients.
出处
《中国医学影像技术》
CSCD
2002年第7期640-641,共2页
Chinese Journal of Medical Imaging Technology
基金
沈阳市科委科研基金资助重点项目 (2 0 0 1 4 2 1 0 0 )
关键词
MR
弥散加权成像
超急性期梗塞
临床研究
诊断
Diffusion weighted imaging
Cerebral infarction
Magnetic resonance imaging
