摘要
目的初步探讨膝关节滑膜病变高频超声图像的特征,评价其与MRI在诊断滑膜病变中的应用价值。方法 72例患者,144个膝关节进行高频超声及MRI检查。所有病变均经病理证实,分别分析高频超声和MRI对膝关节滑膜病变的诊断能力。结果不同疾病类型具有一定特征性的声像图表现。关节囊积液的声像图特征为无回声、云雾状、混合状和暴风雪状。高频超声及MRI与病理对照:诊断完全符合率分别为81.1%和87.4%。高频超声诊断能力:敏感性为90.2%、特异性为81.9%、准确性为87.2%、阳性预测值为97.2%、阴性预测值72.3%,MRI诊断能力评价表:敏感性为96.2%、特异性为85.9%、准确性为89.2%、阳性预测值为97.6%、阴性预测值80.1%。结论高频超声和MRI在诊断膝关节滑膜病变方面均有一定的优势,可为临床提供客观信息。
Objective To analyze high-frequency ultrasound features of synovial diseases of the knee joint and to compare the value of ultrasound and MRI examination in the diagnosis of synovial diseases of knee joint.Methods A total of 72 patients with 144 knees were examined with high-frequency ultrasound and MRI examination.All the patients were confirmed by pathology.The diagnostic value of high-frequency ultrasound and MRI for synovial diseases of knee joints were evaluated.Results The different synovial diseases showed some characteristics on ultrasound.Sonographic patterns of joint effusion were：anechoic,cloudy,mixed and snow-storm on high-frequency ultrasound.The coincidence rate of high-frequency ultrasound and MRI were 81.1% and 87.4%,respectively.For the synovial diseases of the knee joint,the sensitivity,specificity,accuracy,positive predictive value and negative predictive value were 90.2%,96.2%,81.9%,85.9% and 87.2% for high-frequency ultrasound,and were 89.2%,97.2%,97.6%,72.3%,and 80.1% for MRI,respectively.Conclusion High-frequency ultrasound and MRI are valuable imaging methods in the diagnosis of synovial diseases of the knee joint and provide useful information clinically.
出处
《上海医学影像》
2010年第2期132-135,共4页
Shanghai Medical Imaging
关键词
高频超声
膝关节
滑膜病变
MRI
诊断
High-frequency ultrasound
Knee joint
Synovial diseases
MRI
Diagnosis
