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本文作者运用多功能血管病变诊断仪ＭＥＤＡＣＯＫＤ（ＰＶＬ）光电容积描记法（ＰＰＧ）检测下肢静脉瓣膜功能，将结果与下肢静脉造影、下肢静脉手术及临床诊断的结果相比较，认为ＰＰＧ是快速简便、可靠和无创伤性的一种检测下肢静脉瓣膜功能不全的物理方法，具有重大的临床实际意义。
In this study, we compared the venous valve function of the lower extremities with MEDACOKD (PVL) photoplethysmography (PPG). The results were compared with those of venous angiography of the lower extremities, venous vein of the lower extremities and clinical diagnosis. PPG was considered to be quick and easy, Reliable and non-invasive detection of venous valve insufficiency of the physical method of great clinical significance.