【摘要】 目的　分析严重急性呼吸综合征 (SARS)患者发生骨缺血性坏死的MRI表现特点。资料与方法　搜集 4 4例SARS患者在接受激素治疗 3个月后进行骨关节MRI随访检查的资料进行分析。。结果　 4 4例患者中有 10例在MRI上发现骨缺血性坏死改变 ,受累部位包括股骨头、股骨髁、肱骨头、胫骨平台、跟骨和股骨干。病变的中央区信号近似脂肪信号 ,边缘区呈线样低信号 ,可见典型的“双线征”。结论　SARS患者在接受大剂量激素治疗后引起骨缺血性坏死是不可忽视的问题。MRI是SARS患者骨缺血性坏死随访筛选检查的一种有效方法更多还原

【Abstract】 Objective To investigate MRI manifestations of ischemic osteonecrosis developed in patients who had an attack of severe acute respiratory syndrome (SARS).Materials and Methods Osteoarticular follow-up examination with MRI was carried out in 44 patients who had affected by SARS and had received adrenocortical steroid medication one to three months before. MRI findings were analyzed.Results Of the total 44 patients, ischemic osteonecrosis was found in 10 on MRI. The affected sites included femoral head, femoral condyle, humeral head, tibia plateau, calcaneus and femoral diaphysis. In all cases, the lesion’s central area showed signal intensity similar to fat, while the lesion’s margin was characterized by linear low-signal with typical “double line” sign. Conclusion Ischemic osteonecrosis caused by use of large dose of steroid in treating SARS is absolutely not a negligible complication. MRI is an effect means for detecting ischemic osteonecrosis during the follow-up examination of SARS patients.更多还原