摘要
目的:探讨椎管内神经鞘瘤的低场MRI表现及诊断价值。方法:搜集12例经手术病理证实的椎管内神经鞘瘤,重点分析其MRI特点及发病部位。结果:本组病例肿瘤均为单发,T1WI肿瘤呈低或等信号,T2WI呈高信号,增强后显著强化,12例肿瘤病理均无钙化。MRI对椎管内神经鞘瘤定位诊断符合率100%,定性诊断符合率83.3%。结论:低场MRI可作为诊断椎管内神经鞘瘤的敏感检查方法,正确认识其MRI征象能帮助术前诊断,并指导手术。
Objective:To analyze the value of low-field MRI for neurilemmoma in spinal canal. Methods: Twelve patients with pathologically proven neurilemmoma of spinal canal were studied. MRI features of these tumors were analysed with emphasis on signal characteristics and location. Results:Whole of the patients had solitary mass. The material part in the neurilemmoma appeared low signal on T1WI,high signal on T2WI,and the significant enhancement after injection of Gd-Ⅰ)TPA on TIWI . In those areas no enhancement was found on T1WI . The MRI coincidence rate in location diagnosis was 100% ,and that in nature diagnosis 83.3%. Conclusion: Low-field MRI was a sensitive method in diagnosis of neurilemmoma. Accurate understanding of these MRI manifestations was helpful to obtain pre operational diagnosis and direct the operation.
出处
《中国中西医结合影像学杂志》
2005年第4期253-254,共2页
Chinese Imaging Journal of Integrated Traditional and Western Medicine
关键词
椎管
神经鞘瘤
磁共振成像
Spinal canal
Neurilemmoma
Magnetic resonance imaging