论文部分内容阅读
目的 探讨脑膜瘤MRI的特征及其与病理分型之间的关系。方法 回顾性分析 63例经手术和病理证实的脑膜瘤的MRI表现。结果 63例中 ,62例为单发 ,1例为多发。位于额、顶、枕区脑凸面 3 0例 ,鞍区 10例 ,蝶骨嵴 8例 ,嗅沟 5例 ,其他部位 10例。T1 加权像上脑膜瘤信号主要为等信号和略低信号 ,占 87.2 7%。T2 加权像脑膜瘤信号主要为等和略高信号 ,占 69.84% ,明显高信号占 19.0 5 % ,混杂信号占 7.94% ,略低信号占 3 .17%。病理分型 :上皮型 2 9例 ,纤维母细胞型 11例 ,沙粒体型 8例 ,血管母细胞型 5例 ,血管型 10例。MRI诊断 63例均与手术相符。结论 MRI对脑膜瘤的定性、定位诊断有很大的价值 ,血管型脑膜瘤在MRI中具有较强的流空效应。
Objective To explore the features of MRI in meningioma and its relationship with pathological classification. Methods Retrospective analysis of 63 cases of meningioma confirmed by surgery and pathology MRI findings. Of the 63 cases, 62 were single and 1 was multiple. Located in frontal, top, occipital brain convex 30 cases, 10 cases of saddle, sphenoid ridge in 8 cases, olfactory groove in 5 cases, 10 cases in other parts. T1-weighted images of meningioma signal mainly equal signal and slightly lower signal, accounting for 87.2 7%. T2-weighted meningioma signals mainly consisted of equal and slightly higher signals, accounting for 69.84%, significantly higher signals accounting for 19.0%, promiscuous signals accounting for 7.94% and slightly lower signals accounting for 3.17%. Pathological typing: epithelial 29 cases, fibroblast 11 cases, 8 cases of sand body size, 5 cases of vascular cell type, vascular type in 10 cases. MRI diagnosis of 63 cases were consistent with surgery. Conclusion MRI is of great value in qualitative diagnosis and localization of meningiomas. Vascular meningioma has a strong flow-through effect in MRI.