摘要
目的:分析脑膜瘤MRI表现及其相关病理。方法:回顾性分析51例经手术证实的脑膜瘤MRI图像,从其信号特点、肿瘤-脑组织界面、瘤周水肿、脑膜尾征病灶增强后MRI信号均匀度等方面进行归纳,并观察相关病理学资料。结果:脑膜瘤大多T1WI为等低信号,T2WI以稍高信号和混杂信号多见,脑膜尾征具有诊断价值。结论:脑膜瘤MRI征象有较高的敏感性和特征性,大多数能在术前诊断,为手术方式提供帮助。
Objective.. To assess the correlations between the MRI feather of menigoeal turners and pathology. Meathods.. 51 cases of meningoeal images were reviewed,the MRI featuers of the meningioma and histological type were analyzed, inclueding the signal appearance of the tumor, tumor-brain interface status, peritumorous edema, tail sign, and the signal uiniformity after enhence. Results： MRI signal features of meningioma included low SI on T, W images, high and mixed SI on T2 W images,and there are diagnostic value of tail sign. Conclusion：The MRI feature of meningiomas, were high sensitivity and distinctive,most of meningioma could be diagnoses before operation.
出处
《放射学实践》
2007年第8期811-813,共3页
Radiologic Practice
关键词
脑膜瘤
磁共振成像
脑膜尾征
Meningioma
Magnetic resonance imaging
Tail sign
