结核性脑膜炎各期磁共振表现及分析

目的：探讨磁共振在各期结核性脑膜炎中的诊断价值。方法：回顾性分析69例临床确诊为结核性脑膜炎患者的临床资料及磁共振表现。结果：69例中,Ⅰ期15例,Ⅱ期40例,Ⅲ期14例,磁共振对各期结核性脑膜炎均能显示病变,尤其是MR增强扫描,对脑内粟粒性结节及脑膜炎性病变显示最佳,粟粒性结节常位于皮髓交界区,脑膜炎性病变则以脑底部明显。结论：磁共振平扫和增强是结核性脑膜炎首选的影像检查方法。

MRI findings and analysis of tuberculous meningitis in each stage

Objective： To evaluate the value of magnetic resonance imaging （MRI） for tuberculous meningitis in each stage. Methods： Clinical data and MRI findings of 69 cases with tuberculous meningitis clinically confirmed were analyzed retrospectively. Results： Among 69 cases, 15 cases stage Ⅰ, 40 cases stage Ⅱ and 14 cases stage m. MR can display abnormal signal of tuberculous meningitis in each stage, particularly MR enhancement scan, which present obviously miliary nodus in the brain and the thickened leptomeninges. Miliary nodus of the brain was located mostly frequently at the junctional area of white and gray matter, and the thickened leptomeninges were mostly at the bottom of the brain. Conclusion： Routine and enhanced MRI scan is proved to be prior examination in the patients of tuberculous meningitis.