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目的：研究脊柱转移瘤的CT与MR表现及其诊断价值。材料与方法：对已查明原发癌的21例脊柱转移瘤的CT、MR图像进行回顾性分析。结果：CT诊断正确17例，共发现椎骨破坏47块，12例椎旁软组织肿块和椎管受累。MR对全部病例均做出正确诊断，共发现椎骨破坏65块，16例软组织肿块及椎管受累。结论：椎骨大片状溶骨性破坏，椎体病理压缩变形，椎旁软组织肿块及椎管受累是CT、MR诊断本病的重要征象。在显示骨质受累情况，特别是椎弓根和椎间小关节的改变方面，CT优于MR。而在早期检出椎骨改变，椎管受累等软组织改变方面MR明显优于CT。同时使用CT和MR检查，更利于疾病的鉴别诊断，提高诊断率。
Objective: To study CT and MR findings of spinal metastases and their diagnostic value. Materials and Methods: CT and MR images of 21 patients with metastatic spine having been identified as primary cancer were analyzed retrospectively. Results: CT was correctly diagnosed in 17 cases. A total of 47 vertebrae were found to be damaged and 12 cases of paravertebral soft tissue mass and spinal canal were involved. MR made a correct diagnosis of all cases, a total of 65 vertebral destruction, 16 cases of soft tissue mass and spinal involvement. CONCLUSION: Large osteolysis of vertebrae, compression of vertebral body pathology, paravertebral soft tissue mass and spinal canal involvement are important signs of CT and MR diagnosis of this disease. CT is superior to MR in displaying bone involvement, especially in pedicle and intervertebral facet joints. In the early detection of vertebral changes, spinal involvement and other soft tissue changes in MR was significantly better than CT. At the same time the use of CT and MR examination, more conducive to the differential diagnosis of disease and improve the diagnostic rate.