Objective To investigate the value of magnetic resonance imaging (MRI) in the diagnosis of bone marrow and soft tissue lesions in patients with acute osteomyelitis .Methods 60 patients with osteomyelitis who were confirmed by surgical pathology biopsy were chosen for the study ,all patients underwent MRI and X‐ray examination ,bone marrow and soft tissue lesion were analyzed .Results ① X‐ray film showed 6 cases were abnormal ;② 2 .60 patients with MRI scans showed abnormalities ,SE T1 WI and SE T2 WI on bone marrow and soft tissue lesions were detected in 88 .3% and 80.0% ,while the detection rate of STIR sequence on bone marrow and soft tissue lesion were 100% and 91 .7% ,the difference was statistically significant ( P <0 .05) .The detection rate of both bone marrow and soft tissue lesions of MRI were significantly higher than the detection of X‐ray film ,the difference was statistically significant ( P<0 .05) .Conclu‐sion X‐ray film has less effective for early detection of osteomyelitis ,MRI has a significant advantage ,and can be a pre‐ferred method of acute osteomyelitis examination .%目的：探讨M RI在急性骨髓炎患者骨髓及软组织病变诊断中的应用价值。方法选取经穿刺手术病理学确诊的60例骨髓炎感染患者为研究对象，对所有患者均分别进行M RI和X线平片检测，分析其对患者骨髓及软组织病变的检测效果。结果①X线平片显示6例异常；②60例患者M RI扫描均显示异常，其中，SE T1 WI及SE T2 WI对骨髓及软组织病变的检出率分别为88．3％和80．0％，而S T IR序列对骨髓及软组织病变的检出率为100％和91．7％，两者比较，差异具有统计学意义（P ＜0．05）。而两者对骨髓及软组织病变的检出率均显著高于X线平片，差异具有统计学意义（P＜0．05）。结论对于早期骨髓炎患者的检测X线平片的效果较差，M RI检测具有显著的优势，可作为急性骨髓炎患者的首选检查方法。
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