关键词: 肿瘤，结缔和软组织;核磁共振

    摘 要:目的 评价磁共振成像(MRI)对软组织肿瘤的诊断能力. 方法 分析61个软组织肿瘤(良性31个，恶性30个)的大小、部位、边缘、信号强度、周围水肿等特征，并与最后诊断结果进行比较. 结果 部分良性肿瘤如脂肪瘤、血管瘤、神经源性肿瘤及个别恶性肿瘤依据MRI表现可以明确诊断.良性肿瘤中正确诊断率为52%.在良、恶性肿瘤间，病变的大小、水肿、骨骼侵犯等有统计学差异(P<0.05)，但没有任何单一MRI征象可以鉴别肿瘤的良、恶性. 结论 MRI可明确软组织肿瘤的范围，部分良性肿瘤和个别恶性肿瘤可以依据MRI征象正确诊断.

    MR imaging of soft┐tissue tumors

    HAN Yue-Dong，LIU Yan-Li，WEI Meng-Qi，ZHAO Hai-Tao，LIUMan-Sheng，XUChang-Jie，ZHANG Gui-Xiang

    Department of Radiology，Xijing Hospital，Fourth Military Medical University，Xi'an710033，China

    Keywords:neoplasms，connective and soft tissue;nuclear magnetic resonance

    Abstract:AIM To evaluate the efficacy of MR imaging in pathologic diagnosis of soft-tissue tumors.METHODS MRI features of61tumors(31benign，30malignant)，such as the size，location，margination，signal intensity，edema et al，were analyzed and compared with the final diagnosis estab-lished by surgical and pathologic examinations.RESULTS Histologic diagnosis could be made to some benign lesions in-cluding lipomas ......