摘要
目的:提高对椎管内脊膜瘤MRI表现的认识。材料与方法:回顾性分析20例经手术病理证实为脊膜瘤的MRI表现及临床资料。结果:全部20例脊膜瘤均为椎管内单一发病,其中胸段15例,颈段4例,腰段1例,肿瘤T_1WI呈等信号,T_2WI呈等或稍高信号,增强后大多为中度较均匀强化,13例可见"硬脊膜尾征"。结论:脊膜瘤的MRI表现较具有特征性,MBI是诊断椎管内脊膜瘤的最佳影像检查方法。
Purpose: To improve the acknowledgement of MR imaging features of intraspinal meningioma. Materials and Methods: The MR imaging and clinical data of 20 patients with surigical pathologically proved intraspical meningioma were retrospectively analyzed. Results: In 20 patents, a singular lesion was found in each patient. 15 lesions of intraspinal meningioma occurred in the thoracal spine, 4 lesions in the cervical spine and 1 lesion in the lumbar spine. The lesions manifested iso- intense signal on the T1WI imaging and iso- or slightly high intense signa on the T2WI imaging and moderately homogeneous enhancement after contrast enhancement. The tail sign was found in 13 patients. Conclusion: The manifestation of the intraspinal meningioma was characteristic on MR imaging. MR imaging is the best modality of choice for the diagnosis of itraspinal meningioma.
出处
《现代医用影像学》
2008年第3期109-111,共3页
Modern Medical Imageology
关键词
椎管
脊膜瘤
磁共振成像
Vertebral canal Meningioma Magnetic resonance imaging