医药学论文：骨梗死的MRI表现和早期诊断

关键词：骨梗死；　　磁共振成像

【关键词】 骨梗死； 磁共振成像
【Abstract】 Objective To analyse the MRI manifestation of bone infarction and explore the value of MRI in early diagnosis of bone infarction. Methods There were 11 patients with bone infarction. All cases were examined by MRI. Results 19 lesions were calculated in 11 patients. There were 10 lesions on distal segment of femur，8 proximal segment of tibia， 1 distal segment of tibia. 8 cases were defined as early bone infarction， 3 cases were defined as middle or late bone infarction. All of the 19 lesions presented typical "map-shaped"manifestation. Four of these cases showed obvious "double-line"sign on T2-weighted and fat-suppression imaging. Conclusion MRI manifestation of early bone infarction has characteristics. MRI can be used in the early diagnosis， especially for the clinically suspected patients.
骨梗死临床较少见，临床表现多不典型，特别是早期骨梗死，X线平片检查多为阴性，易造成漏诊、误诊［1］，延误治疗。现分析11例骨梗死患者的MRI表现，探讨其在骨梗死早期诊断中的应用价值。
1.1 一般资料 搜集我院2002～2006年确诊的骨梗死病人11例，男6例，女5例，年龄21～68岁，平均42.3岁。其中有外伤史者4例，临床上有大量激素使用史5例，有长期酗酒病人1例，病史不明确1例。临床表现为患肢肌肉关节剧痛、活动障碍并局部软组织肿胀的4例。患肢软弱无力、隐痛、轻度活动受限3例。无明显症状者3例。所有病例均行MRI检查。
2 结果