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目的:判断高频超声桡动脉(RA)、尺动脉(UA)及手掌侧支循环的相关性及后两者在临床诊断中的准确性。方法:采用改良和量化SaO2-Allen试验方法,判断受试者手掌侧支循环建立时间。采用高频超声检测受试者RA受压迫前后,RA、UA、RA掌浅支和拇指动脉的血流动力学参数。结果:207例受试者的手掌侧支循环建立时间:量化SaO2-Allen试验坐位为7.34(Q2.5～Q97.5:4.35～13.22)s,卧位为7.30(Q2.5～Q97.5:3.63～13.22)s,改良Allen试验坐位为3.02(Q2.5～Q97.5:1.17～11.38)s,卧位为2.77(Q2.5～Q97.5:1.28～11.29)s;高频超声检测:以高频超声检测拇指动脉血流消失为异常标准,对量化SaO2和改良Allen试验进行受试者工作特征曲线分析,得出曲线下面积(AZ),量化SaO2-Allen试验AZ=0.52～0.53,改良Allen试验AZ=0.53～0.55。结论:与高频超声检测结果比较,量化SaO2和经典Allen试验诊断准确性较低。
Objective: To determine the correlation between the radial artery (RA), ulnar artery (UA) and the collateral circulation of the palm and the accuracy of the latter two in clinical diagnosis. Methods: The improved and quantified SaO2-Allen test method to determine the subject’s palm collateral circulation establishment time. The hemodynamic parameters of RA, UA, RA superficial palmar and thumb artery were measured by high-frequency ultrasound before and after compression of RA. Results: The establishment time of the collateral circulation in the palm of 207 subjects: The SaO2-Allen test sitting position was 7.34 (Q2.5 ~ Q97.5: 4.35 ~ 13.22) s and the lying position was 7.30 (Q2.5 ~ Q97.5 : 3.63 ~ 13.22) s, modified Allen test sitting position was 3.02 (Q2.5 ~ Q97.5: 1.17 ~ 11.38) s, lying position was 2.77 (Q2.5 ~ Q97.5: 1.28 ~ 11.29) s; Detection: High-frequency ultrasound to detect the disappearance of the thumb artery blood flow as an abnormal standard, quantitative SaO2 and modified Allen test subjects characteristic curve analysis, the area under the curve (AZ), quantified SaO2-Allen test AZ = 0.52 ~ 0.53, improved Allen test AZ = 0.53 ~ 0.55. Conclusion: Compared with the results of high-frequency ultrasound, the diagnostic accuracy of quantified SaO2 and classical Allen test is low.