艾滋病合并弓形体虫脑炎的MRI表现  

MRI Features of Toxoplasmic Encephalitis in AIDS

作　　者：吕亚萍[1] 黄葵[1] 马雪梅[1] 黄可祥[1] 兰庆茂 黄忠道[1] 朱楠[1] 黄菊[1] 

机构地区：[1]柳州市柳铁中心医院放射科,广西柳州545007

出　　处：《实用放射学杂志》2011年第7期989-991,共3页Journal of Practical Radiology

摘　　要：目的 分析艾滋病（AIDS）合并弓形体虫脑炎的MRI表现,评价MRI诊断AIDS合并弓形体虫脑炎的准确性.方法 回顾分析资料完整的26例AIDS合并弓形体虫脑炎的MRI表现.结果 26例病灶在T1W为中等偏低信号,T2W上表现为高信号,24例病灶边缘中等稍高T1、中等偏低T2信号环;病灶形态为类圆形,周围大片水肿,病灶单环或多环样强化;26例均伴随有不同程度副鼻窦炎;5例病灶单发;21例病灶多发.MRI检查准确诊断AIDS合并弓形体脑炎20例,误诊6例.结论 MRI检查对AIDS合并弓形体脑炎的诊断具有重要价值.Objective To analyze the MRI characteristics of the HIV （AIDS） complicated with cerebral toxoplasmosis , and to evaluate the diagnostic accuracy of MRI. Methods MRI features of cerebral toxoplasmosis in 26 cases with clinical details were retro- spectively study. Results The lesions in all cases were elliptic with brain edema and appeared as iso-low signal intensity on T1WI and hyperintesity on T2 WI. The capsule-like rims with iso- to slightly higher intensity on T1 WI and iso- to hypo-intensity on T2 WI in 24 ：ases. All lesions demonstrated rim or muki-rim enhancement and 26 cases were accompanied by varying degrees sinusitis. The leions were multiple in 21 cases and isolated in 5 cases. The AIDS combined with toxoplasmic encephalitis were correctly diagnosed in 20 cases by MRI and 6 cases were misdiagnosed. Conclusion MRI has an important value in diagnosis of cerebral toxoplasmosis.

关 键 词：艾滋病 弓形虫脑炎 脑 磁共振成像 

分 类 号：R512.91[医药卫生—内科学] R531.8[医药卫生—临床医学]