椎管肿瘤的MRI诊断  

Magnetic Resonance Imaging Diagnosis of Intraspinal Tumor

作　　者：居胜红[1] 高广如[1] 

机构地区：[1]南京铁道医学院附属医院放射科

出　　处：《南京铁道医学院学报》1999年第1期30-33,共4页Journal of Nanjing Railway Medical College

摘　　要：目的：分析椎管内肿瘤的ＭＲＩ表现，以提高对该病的定位、定性及鉴别诊断水平。方法：收集６３例手术病理证实的椎管内肿瘤，重点分析肿瘤在ＭＲＩ上的形态、边界、信号特点及增强情况。结果：髓内肿瘤，尤其当肿瘤很小时，其边界不清、三方位成像始终显示脊髓增粗的特点至关重要；在对髓外膜内肿瘤的神经鞘瘤与脊膜瘤鉴别中，观察Ｔ２ＷＩ的信号强度最有意义，并有其病理学根据；硬膜外肿瘤中，转移瘤最多见，但也有少量良性肿瘤。结论：椎管内肿瘤在ＭＲＩ上各有特征。Objective:The magnetic resonance imaging (MRI) features of intraspinal tumors were analyzed in order to detect their location and nature accurately and improve the differentiable diagnosis from other diseases.Methods:Sixty-three cases of pathologically proved intraspinal tumors were studied.MRI featrures of these tumors were analyzed with emphasis on characteristic of tumor appearance,margin,signal and contrast-enhancement.Results:For spinal cord tumor,especially when the tumor is small,it is important to study carefully if the margin is ill-defined and the spine cord distended on three-dimension imaging.For the differential diagnosis from neurinoma and meningioma,the signal characteristic of T 2WI is the most important,which could be explained by pathology.Metastatic carcinoma is most common in epidural tumor,but some other tumors may be observed.Conclusion:There are characteristic MRI features in all intraspinal tumors.MRI is a valuable for diagnosis of intraspinal tumors.

关 键 词：椎管内肿瘤 椎管肿瘤 MRI诊断 脊膜瘤 手术病理 转移瘤 髓内肿瘤 边界 结论 信号强度 

分 类 号：R739.42[医药卫生—肿瘤] R730.54[医药卫生—临床医学]