摘要
目的:探讨MR诊断AIDS脑部病变的诊断价值和临床意义,总结其影像特征。材料与方法:分析39例AIDS患者的临床及脑部MR影像资料。结果:本组15例为MR检查疑似AIDS患者,经验血后予以证实。39例患者中脑萎缩33例,32例脑异常信号病例中病灶多发320例,病变以额顶叶居多,脑部病灶大小相差较大,形态表现多样,可多种形态并存,占位效应相对较轻。病灶大多呈T1WI像低信号,T2WI及Flair高信号,Flair序列对病灶的显示较清,病灶增强后强化或不强化,弓形体脑炎占大多数。结论:MR在诊断AIDS患者脑部病变方面具有较高的诊断价值和重要的临床意义。
Purpose： To evaluate the clincal value of MRI in the diagnosis of brain lesion of AIDS patients and summarize its imaging features. Materials and Methods： Analysis of 39 cases of AIDS patients and brain MR imaging data. Results： 15 patients who were suspeeted by MR to have AIDS were confirmed by a blood test. There were 33 patients baying eneephalon atrophy. 30 out of 32patients showed muhffocal encephalon abnormality. The presences of lesions were mainly observed in lobusfrontalis and paretalis. MRI showed the variability of size and form of brain lesion, there was no strong oeeuping effet obseved. The signal of the lesions on MRI was hypointense on T1WI and mostly hyperintense on T2WI and Flarir, Flair series is more sensitive in detecting brain abnormalities, image contrast enhancement of lesion after Gd - DTPA enhanced were not observed in all cases, majority of 32 eases showed encephalon toxplasmosis. ConclusIon： MRI has high clinical value in the diagnosis of eneephalon of AIDS patientd.
出处
《现代医用影像学》
2009年第1期1-4,共4页
Modern Medical Imageology
