比目鱼肌超声剪切波弹性成像评估下肢远端深静脉血流滞缓的临床价值

目的 探讨比目鱼肌超声剪切波弹性成像对下肢远端深静脉血流滞缓表现的评估能力及临床应用价值。方法 以小腿肌肉静脉扩张作为远端深静脉血流滞缓标准,将136例下肢深静脉超声检查患者下肢肢体分为扩张组与正常组,比较两组人群临床资料差异并用多因素Logistic分析探讨影响肌肉静脉扩张的危险因素;同时比较比目鱼肌剪切波弹性成像及常规超声血流滞缓评估方法在扩张组与正常组下肢肢体间结果是否存在差异并构建ROC曲线分析各自诊断效能。结果 扩张组比目鱼肌剪切波杨氏模量测值低于正常组（P＜0.001）、二维“暴风雪征”半定量分级评估（P＜0.001）、腘静脉内径及腘静脉血流淤滞指数扩张组大于正常组（P＜0.05）;ROC曲线结果显示,当杨氏模量取12.7kPa时超声剪切波弹性成像诊断左下肢远端血流滞缓的曲线下面积0.960,灵敏度92.06%,特异度97.26%;当杨氏模量取13.0kPa时超声剪切波弹性成像诊断右下肢远端血流滞缓的曲线下面积0.950,灵敏度95.92%,特异度91.95%。结论 剪切波弹性成像测定比目鱼肌硬度具备定量评估肌肉静脉血流状态的能力,对远端深静脉血流滞缓诊断效能优于传统超声检查方法。

Clinical value of soleus muscle ultrasound shear wave elastography in evaluating distal deep venous blood flow stasis of lower extremities

Objective To explore the evaluation ability and clinical application value of soleus muscle ultrasound shear wave elastography in assessing the distal deep venous blood flow stasis of lower extremities. Methods Using the calf muscle venous dilation as the criterion for distal deep venous blood flow stasis, the both of lower limbs of 136 patients with lower extremity deep venous ultrasound examination were divided into dilation group and normal group, the differences in clinical data between the two groups were compared and the risk factors of dilated calf muscle veins were explored using multifactorial logistic analysis.The results of soleus muscle shear wave elastography and conventional ultrasound blood flow stasis evaluation methods were analyzed between the dilation group and normal group. The ROC curve was constructed to analyze their diagnostic performance. Results Young"s modulus value of the soleus