超声检查在早期膝骨性关节炎的诊断价值探讨

The diagnostic value of ultrasound in patients with knee osteoarthritis

目的探讨超声检查诊断膝骨性关节炎的临床应用价值。方法选择临床考虑诊断为早期膝骨性关节炎的患者70例。所有患者均接受膝关节超声检查和核磁共振(MRI)检查,以关节镜检查结果为"金标准"。评价膝关节超声检查和核磁共振(MRI)检查的诊断价值。结果70例拟诊断早期膝骨性关节炎患者,关节镜确诊54例。超声检查敏感性88.89%、特异性87.5%、阳性预测值96%、阴性预测值70%、准确性88.57%,MRI检查敏感性92.59%、特异性93.75%、阳性预测值98.04、阴性预测值78.95%、准确性92.86%,两种方法结果差异无统计学意义(P>0.05)。结论超声检查检出膝骨性关节炎的敏感性、特异性和准确性与核磁共振检查无明显差异,对膝骨性关节炎早期诊断准确可靠。

Objective To investigate the clinical diagnosis value of ultrasound in patients with knee osteoarthritis.Methods We selected 70 patients with early knee osteoarthritis.All patients received examinations of knee ultrasonography and MRI.With arthroscopy results as the"gold standard,the diagnostic value of ultrasound and MRI were evaluated.Results In the 70 patients,54 patients with knee osteoarthritis were confirmed by arthroscopy.The sensitivity,specificity,positive predictive value,negative predictive value and accuracy of ultrasound were 88.89%,87.50%,96.00%,70.00%,and 88.57%,respectively.The sensitivity,specificity,positive predic tive value,negative predictive value and accuracy were was 92.59%,93.75%,98.04%,78.95% and 92.86%,respectively.There was no statistically significant difference between the two methods(P>0.05).Conclusion There is no obvious difference in sensitivity,specificity and accuracy between ultrasound and MRI.Therefore,ultrasound is reliable and accurate for early diagnosis of knee osteoarthritis.