目的 分析股骨头坏死的CT及 X线表现并比较其在该病临床诊断中的 应用价值。方法 选择我院2011年9月至 2015年9月收治66例股骨头缺血性坏死患 者作为研究对象，均行CT检查及X线检 查，总结CT及X线影像学表现并比较检 出率。结果 66例MRI确诊结果为Ⅰ期19 例、Ⅱ期26例、Ⅲ期13例、Ⅳ期8例。 其中CT检查共准确诊断61例，检出率为 92.4%(61/66)，X线共准确诊断53例，检 出率为80.3%(53/66)，差异有统计学意义 (P＜0.05)。结论 与X线相比，CT检查在 股骨头坏死中的应用可多层次观察股骨头 韧带钙化、骼腰肌囊扩张、关节囊肿胀、 肌肉萎缩等病变情况，诊断准确性高。

Objective To analyze the CT and X-ray findings of femoral head necrosis, and to compare their application value in its clinical diagnosis. Methods Sixty-six patients with avascular necrosis of femoral head treated in our hospital from September 2011 to September 2015 were selected as the research objects. All underwent CT and X-ray examination. The imaging features of the two methods were summarized and the detection rates were compared. Results Sixty-six cases of MRI were diagnosed as 19 cases of stageⅠ, 26 cases of stage II, 13 cases of stage III and 8 cases of stage IV, in which 61 cases were accurately diagnosed by CT and the detection rate was 92.4% (61/66). 53 cases were accurately diagnosed by X-ray and the detection rate was 80.3% (53/66) (P<0.05). Conclusion Compared with X-ray, the application of CT in femoral head necrosis can clearly reflect ligament femoral head calcification, enlarged iliopsoas bursa, joint capsular swelling, muscle atrophy and other lesions through multi-level observation. It can improve the accuracy of diagnosis and the diagnostic value is higher.