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目的：对 CT 与核磁共振在股骨头坏死患者临床中诊断价值比较。方法从本院2013年5月-2015年3月期间收治股骨头坏死患者中选取70例作为研究对象，使用数字表法随机分观察组和对照组，各35例。观察组患者给予核磁共振检查，对照组患者给予 CT 检查，观察分析两组阳性检出情况。结果观察组阳性检出率（91.24%）优于对照组阳性检出率（54.28%），差异存在统计学意义（p＜0.05）。观察组中27例患者图像显示出 T1W1和 T2W1信号（77.14%），7例表现出低信号区（20%），仅1例出关节囊积液（2.85%）。对照组经过 CT 检查所有结果表现出骨硬化与囊状透亮区。结论在股骨头坏死患者临床诊断中常使用 CT 和 MRI 经检查，MRI 技术优势较显著，具有较高的安全性，而 CT 检查的使用应根据患者实际情况进行合理安排。“,”Objective To compare the diagnostic value of CT and MRI in patients with femoral head necrosis. Methods 70 cases of patients with osteonecrosis of the femoral head treated in our hospital from May 2013 to -2015 in March were selected as the research object, and were randomly divided into the observation group and the control group, each with 35 cases. Patients in the observation group were given magnetic resonance imaging, the control group was given CT examination, observation and analysis of two groups of positive detection. Results the positive rate of the observation group (91.24%) was better than that of the control group (54.28%), and the difference was statistical y significant (P < 0.05). In the observation group, 27 cases showed T1W1 and T2W1 signal (77.14%), and the low signal area (20%) was found in al the patients in the observation group (1), and only in the joint capsule effusion (2.85%) in al of the patients (7). The control group after CT check al showed bone sclerosis and cystic hyalomere. Conclusion in the clinical diagnosis of femoral head necrosis in the use of CT and MRI examination, MRI technology has obvious advantages, with high safety, and the use of CT examination should be based on the actual situation of patients with reasonable arrangements.