摘要
目的:探讨MRI征象在恶性脑膜瘤术前诊断中的价值。方法:回顾性分析23例恶性脑膜瘤的MRI征象,并随机抽取同期34例良性脑膜瘤作为对照。结果:分叶征、囊变坏死、瘤脑界面、瘤脑界面的边缘、T1WI信号、信号不均匀性、强化不均匀性、强化程度、脑膜尾征的有无及形态与脑膜瘤良、恶性相关。结论:恶性脑膜瘤的MRI表现具有一定的特征性,评价某些MRI征象对恶性脑膜瘤的术前定性诊断具有重要意义。
Objective: To investigate the value of MRI features in preoperative diagnosis of malignant meningioma. Methods: MRI findings in 23 patients with malignant meningioma were analyzed retrospectively, and 34 cases of benign meningiomas in the same period were randomly selected as control. Results: Lobulation, cystic necrosis, tumor-brain interface, tumor-brain interface rim, signal intensity in T1WI, signal inhomogeneity, inhomogeneous contrast enhancement, the degree of contrast enhancement and dural tail sign are related to the gradings of meningioma. Conclusion: Malignant meningiomas do have characteristic MRI features, to evaluate some MRI features has important significance in qualitative diagnosing malignant meningioma before operation.
出处
《中国临床医学影像杂志》
CAS
北大核心
2007年第11期777-780,共4页
Journal of China Clinic Medical Imaging
关键词
脑膜瘤
磁共振成像
meningioma
magnetic resonance imaging