摘要
目的:探讨不同b值磁共振扩散成像(DWI)技术对急性脑梗死的诊断价值。方法:分析、比较116例急性脑梗死患者的b=1000 s/mm2和b=2000 s/mm2DWI图像、常规T2加权像(T2WI)和T2加权压水像(T2WI-FLAIR)。结果:b=2000 DWI图像对脑梗死病灶的显示明显好于b=1000 DWI图像(P<0.05)。结论:高b值DWI可以更敏感地发现脑梗死病灶。
Objective：To explore the value of diffusion weighted imaging（DWI） with different b values in diagnosing acute cerebral infarction.Methods： Two weightings（b=1000,2000 s/mm2） were applied in 116 acute cerebral infarction patients in DWI and the T2WI and T2WI-FLAIR imaging scans were performed as well.Results： When compared with the DWI image scanning with low b value（b=1000 s/mm2）,DWI image scanning with high b value（b=2000 s/mm2） can more sensitively reveal infarcted lesions in patients of acute cerebral infarction in early stage（P0.05）.Conclusion： Acute cerebral infarction can be demonstrated earlier and more clearly by the images of DWI with high b values.
出处
《神经损伤与功能重建》
2009年第6期405-407,共3页
Neural Injury and Functional Reconstruction
关键词
B值
MR扩散成像技术
脑梗死
high b value diffusion weighing imaging cerebral infarction
