脑血吸虫病的MRI诊断  

MRI diagnosis of the cerebral schistosomiasis

作　　者：龚才桂[1] 王小宜[1] 刘慧[1] 

机构地区：[1]中南大学湘雅医院放射科,长沙410008

出　　处：《放射学实践》2010年第7期737-739,共3页Radiologic Practice

摘　　要：目的:探讨脑血吸虫病的MRI表现及其诊断价值。方法:回顾性分析30例脑血吸虫病患者的MRI表现。结果:30例中脑内单发病灶18例(18/30)、多发12例(12/30),不对称病灶共44个,位于顶叶14个,枕叶11个,颞叶9个,额叶5个,小脑半球5个。病灶MRI表现为T1WI呈稍低信号或等信号,T2WI呈稍高信号或等信号,病灶周围脑实质可见大片状水肿。增强扫描30例,病灶均有强化,主要呈结节样强化(26例),4例呈泥沙样、斑片样和环形强化。结论:脑血吸虫病的脑部MRI表现具有一定特征性,增强扫描至关重要,MRI是诊断脑血吸虫病最有价值的无创性检查手段。Objective：To evaluate the MRI findings and diagnostic value of cerebral schistosomiasis.Methods：30 patients with cerebral schistosomiasis were analyzed retrospectively with the MRI findings.Results：39 cases of cerebral schistosomiasis including 18 with single lesion and 12 with multiple lesion contained totally 44 asymmetrical lesions：14 lesions in parietal lobe,11 in occipital lobe,9 in temporal lobe,5 in frontal lobe and 5 in cerebellar hemisphere.The lesions showed slightly hypointense or isointense signal on T1-weighted images and moderate hyperintense or isointense on T2-weighted images,with parenchymal edema all around the lesions.Enhanced MRI of the 30 cases demonstrated abnormal enhancement such as nodular（n=26）,sand-like,mottled and peripheral ring-like enhancements（n=4）.Conclusion：MRI findings of cerebral schistosomiasis provide specific characteristics,especially the enhanced scanning would be considered as the most valuable noninvasive diagnostic method.

关 键 词：血吸虫病 脑 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学]