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目的 :探讨骨肉瘤侵犯骨骺和关节的影像学表现。方法 :对照术中大体观察和术后组织病一学检查结果 ,对2 7例骨肉瘤患者的X线、CT和MRI所显示的骨骺和关节受侵情况进行分析 ,总结有关影像学特征。统计学分析采用Fisher′s精确检验。结果 :MRI在显示骨骺和关节受侵方面均与组织学检查结果基本一致 ,优于X线片和CT。结论 :MRI是判断骨肉瘤患者骨骺和关节受侵情况的可靠方法。
Objectives: To investigate the imaging manifestations of osteosarcoma in invading osteophytes and joints. Methods : To compare the results of gross observation and postoperative histopathologic examination in 27 patients with osteosarcoma, and analyze the bone invasion and joint invasion on X-ray, CT and MRI, and summarize the related imaging features. Statistical analysis uses Fisher’s exact test. Results: MRI showed basically consistent results with histological examination in demonstrating bone callus and joint invasion. It was superior to X-ray film and CT. Conclusion: MRI is a reliable method for judging osteophytes and joint invasion in patients with osteosarcoma.