论文部分内容阅读
目的 :分析脑部多发性硬化的常规MRI及临床表现 ,总结鉴别意义。方法 :回顾华山医院住院病人中临床确诊脑部多发性硬化 2 0例 ,分析常规MRI上斑块各种特征 ,与脑囊虫、梗死、非特异性白质病变等比较。结果 :2 0例脑部多发性硬化共有斑块约 2 5 8个。分布上侧脑室旁最常见 ,其次为皮质下白质、胼胝体及脑干 ,小脑斑块最少。急性期斑块为卵圆形或圆形 ,有膨胀感。几毫米至 2cm不等 ,周围可有水肿 ,慢性期趋于片状。T1WI呈略低信号 ,T2 WI为高信号 ,急性期由于斑块与水肿在T2 WI上的不同 ,呈“核心”现象。结论 :脑部多发性硬化常规MRI有一定特征性 ,结合临床 ,可以与囊虫、梗死及血管炎等鉴别
Objective: To analyze the conventional MRI and clinical manifestations of multiple brain sclerosis, and to summarize the differential significance. Methods: To review 20 cases of clinically diagnosed multiple sclerosis in hospitalized patients in Huashan Hospital, and to analyze various features of plaques on conventional MRI and to compare with cerebral cysticercosis, infarction and nonspecific white matter lesions. Results: There were about 25 58 common plaques in 20 cases of brain sclerosis. Distribution of the most common lateral ventricle, followed by cortical white matter, corpus callosum and brainstem, the least cerebellar plaque. Acute plaque oval or round, with a sense of expansion. A few millimeters to 2cm range, may have edema around, chronic phase tends to flake. T1WI was slightly lower signal, T2WI high signal, the acute phase due to plaque and edema in different T2W, was “core” phenomenon. CONCLUSIONS: Conventional MRI of multiple sclerosis in the brain has some characteristics. Combined with clinical practice, it can be distinguished from cysticercosis, infarction and vasculitis