摘要
目的探讨AIDS局灶脑炎MRI特征。方法回顾性分析21例经综合诊断为AIDS局灶脑炎病例,所有病例均行MRI平扫、钆对比增强及DWI成像。结果 AIDS局灶脑炎病灶95.23%多发,主要分布在基底节区及皮髓交界区;形态为环状或不规则状,少数为结节状。MRI平扫病灶实质区主要为等T1WI等T2WI信号,坏死区为稍长T1WI长T2WI信号,T2 Flair上为高信号;增强扫描明显强化,可呈环状、结节状、"靶征"样强化。DWI上病灶主要为高信号。结论 AIDS局灶性脑炎MRI平扫、钆对比剂增强、DWI成像特征明显;综合各种检查信息能为病灶定性诊断、区分各种成份及确定病程提供有力依据。
Objective To approach the character of magnetic resonance imaging（MRI） of the focal encephalitis related Human acquired immunodeficiency syndrome（AIDS）.Methods Conventional MRI,Magnevist Solution/Magnevist contrast enhancement,DWI were taken in 21 AIDS related focal encephalitis.Results 95.23% AIDS related focal encephalitis were multiple ring and nodus.The predominant location were basal ganglia and transition zones of pallium and ectocinerea.Homosignal T1WI and T2WI were in the parenchymatous tissue;hypersignal T1WI and T2WI were in the zone of necrosis.Hypersignal of DWI and the ring and nodus enhanced were in majority focus of infection.Conclusion There were a significant character of MRI and DWI of AIDS related focal encephalitis.The signs for diagnostic and distinguish were discovered.
出处
《新疆医科大学学报》
CAS
2011年第5期443-446,共4页
Journal of Xinjiang Medical University
基金
国家自然科学基金(30860268)
新疆维吾尔自治区自然科学基金(200821110)
乌鲁木齐市新市区科技局基金项目(2007-20)
关键词
人类获得性免疫缺陷综合征
局灶性脑炎
磁共振成像
磁共振扩散加权成像
human acquired immunodeficiency syndrome
acquired immunodeficiency syndrome（AIDS） related focal encephalitis
magnetic resonance imaging
diffusion-weighted imaging
