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目的分析螺旋CT与高场MRI早期诊断成人股骨头坏死的临床效果,为临床医生诊断成人股骨头坏死提供可靠依据。方法选择成人股骨头坏死的患者124例,所有患者均采用螺旋CT与高场MRI检查,观察两种方式检查效果。结果采用高场MRI检查,早期股骨头坏死诊断正确率、整体诊断正确率明显高于CT检查,差异有统计学意义(P<0.05);两种检查方式在中期、晚期股骨头坏死诊断方面相比,差异无统计学意义(P>0.05)。MRI正确判断早期股骨头坏死灵敏度为91.62%,特异度为98.11%,误诊率为1.89%,漏诊断率为8.33%;CT正确判断早期股骨头坏死灵敏度为72.92%,特异度为95.60%,误诊率为4.40%,漏诊断率为27.08%。结论对成人股骨头坏死患者采用CT及MRI检查均有明显效果,但MRI检查在早期股骨头坏死和整体诊断方面的正确率明显高于CT检查,可作为临床诊断成人股骨头坏死的首选方法。
Objective To analyze the clinical effect of spiral CT and high field MRI in early diagnosis of adult femoral head necrosis and provide a reliable basis for clinicians to diagnose adult femoral head necrosis. Methods 124 patients with adult osteonecrosis of the femoral head were selected. All patients were examined by spiral CT and high field MRI, and the results of two methods were observed. Results High-field MRI showed that the correct rate of early diagnosis of femoral head necrosis was higher than that of CT, the difference was statistically significant (P <0.05). The diagnosis of femoral head necrosis The difference was not statistically significant (P> 0.05). MRI correctly diagnosed early femoral head necrosis sensitivity was 91.62%, specificity was 98.11%, misdiagnosis rate was 1.89%, missed diagnosis rate was 8.33%; CT correct judgment of early femoral head necrosis sensitivity was 72.92%, specificity was 95.60%, misdiagnosis The rate was 4.40%, the missed diagnosis rate was 27.08%. Conclusion CT and MRI examination of adult patients with femoral head necrosis have obvious effect, but the accuracy of MRI examination in the early stage of femoral head necrosis and overall diagnosis is significantly higher than CT examination, which can be used as the first choice of clinical diagnosis of adult femoral head necrosis.