CT与MRI对早期股骨头缺血坏死诊断中的运用价值分析

Diagnosis Value of CT and MRI in Early Avascular Necrosis of Femur Head

目的:分析CT与MRI对早期股骨头缺血坏死的诊断价值。方法:对我院2016年6月-2017年6月收治的82例患有早期股骨头缺血坏死患者均行髋关节CT及MRI扫描,共118髋,其中早期98髋,中晚期有20髋。结果:CT与MRI在敏感性、特异性及准确率都较高,分别为94.1%和96.6%,但对于早期敏感性对比,MRI的敏感度高达100%,两组比较具有显著差异(P<0.05)。结论:CT与MRI对股骨头缺血性坏死的诊断率都很高,但对于早期股骨头缺血性坏死的检查中,MRI的敏感性及特异性高于CT,值得应用推广。

Objective： To discuss the diagnosis values of CT and MRI in the early avascular necrosis of femur head. Methods： The CT and MRI data of the 82 patients diagnosed with avascular necrosis of femur head during June 2016 to June 2017 in our hospital, which involved 118 Hips including 98 cases in early stage and 20 cases in advanced period, were retrospectively analyzed.Results： The rate of sensibility, specificity and accuracy of CT and MRI in diagnosis of avascular necrosis of femur head are equally high, respectively 94.1% and 96.6%. However, the sensibility of MRI in diagnosis of early avascular necrosis of femur head is higher than CT with significant difference（P〈0.05）. Conclusion： The diagnostic rate of CT and MRI in avascular necrosis of femur head are both high. But MRI is worth promoting because of its superior sensibility and specificity to CT in diagnosis of early avascular necrosis of femur head.