论文部分内容阅读
目的::探讨鞍结节脑膜瘤的磁共振成像(magnetic resonance imaging,MRI)影像学特征及其诊断价值。方法::回顾性分析1995年1月—2015年12月经术后病理证实的59例鞍结节脑膜瘤患者的术前MRI影像学特征。结果::59例鞍结节脑膜瘤患者中,男性15例,女性44例。所有59例鞍结节脑膜瘤的基底均位于鞍结节或鞍隔的硬膜;MRI平扫T1加权像(weighted image,WI)均呈等信号或略低信号,T2WI均呈等信号或略高信号;57例鞍结节脑膜瘤的MRI增强扫描图像呈明显的均匀强化,2例呈不均匀强化;45例可见“脑膜尾征”。结论::MRI检查在鞍结节脑膜瘤的定位和定性诊断中显示出明显的优势,可以为手术方式的选择、肿瘤切除程度的评估以及手术风险的预测提供重要指导。
Objective: To investigate the magnetic resonance imaging (MRI) features of saddle nodular meningioma and its diagnostic value. Methods: Preoperative MRI features of 59 patients with saddle nodular meningioma confirmed by postoperative pathology from January 1995 to December 2015 were analyzed retrospectively. Results: Among 59 patients with saddle nodular meningioma, 15 were male and 44 were female. All 59 cases of saddle nodular meningiomas were located in the saddle nodules or septum dura; MRI weighted T1 weighted images showed equal signal or slightly lower signal, T2WI showed equal signal or slightly High signal; 57 cases of sella nodules meningioma enhanced MRI image was significantly uniform enhancement, 2 cases were heterogeneous enhancement; 45 cases can be seen “Meningeal sign ”. Conclusion: The MRI examination shows obvious advantages in the localization and qualitative diagnosis of sella nodules meningiomas. It can provide important guidance for the selection of operative methods, the degree of tumor resection and the prediction of operative risk.