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目的探讨骨肉瘤对骨骺和/或关节侵犯的低场MRI表现。方法复习12例骨肉瘤的MR影像学特点,并与X线平片进行对比分析。结果12例中,7例骨骺未闭合的患者中有5例越过骺板侵及骨骺,5例骨骺闭合的患者中有4例侵及骨性关节面。MRI显示其病变范围均明显大于X线片。结论MRI是判断骨肉瘤患者骨骺和/或关节受侵情况的可靠方法,是术前不可缺少的补充检查。
Objective To investigate the low-field MRI findings of osteosarcoma on epiphysis and / or joint invasion. Methods The MRI findings of 12 cases of osteosarcoma were reviewed and compared with those of plain radiographs. Results Of the 12 cases, 5 out of 7 epiphyseal non-closed patients crossed the epiphysis and the epiphysis, and 4 of 5 epiphyseal closed patients invaded the bony articular surface. MRI showed that the lesions were significantly larger than the X-ray film. Conclusion MRI is a reliable method to judge the situation of epiphysis and / or joint invasion in patients with osteosarcoma. It is an indispensable supplementary examination before operation.