MRI在脑脓肿诊断中的应用价值
Journal of North Sichuan Medical College（2011）
Abstract
目的:探讨MRI在诊断脑脓肿中的价值.方法:对临床、手术和病理证实的35例脑脓肿分别进行常规MRI平扫、增强、T2FLAIR和弥散加权成像(DWI)检查.结果:35例脑脓肿共45个病灶,其中15个病灶在T1WI上出现“暗线”征,19个病灶在T2WI上出现“暗带”征,19个病灶在T2FLAIR上出现“亮带”征；19个病灶DWI上呈程度不等的高信号,ADC值低,6个病灶呈等、低信号,ADC值增高；45个病灶脓肿壁均强化明显,显示脓腔、脓肿壁及水肿带征象.结论:“暗带”征和ADC值对脑脓肿的MRI诊断有一定价值,对脑脓肿的MRI检查,DWI应纳入常规.
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Key words
Brain abscess,DWI,MRI
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