【摘要】 目的　探讨空气体积描记仪 (airplethysmography ,APG)在下肢深静脉瓣膜功能不全中的应用价值。方法　运用APG对 6 5例 (89条肢体 )下肢静脉曲张患者进行检测 ,其中肢体返流程度 0度 17条、Ⅰ度 18条、Ⅱ度 2 4条、Ⅲ度 18条、Ⅳ度 12条。测量静脉灌注指数 (VFI) ,射血分数(EF) ,残余容积分数 (RVF)和流出分数 (OF)指标并统计分析其综合向量效能。同期行静脉造影。结果　深静脉各度返流的VFI值 (除Ⅰ与Ⅱ外 )两两之间差异均有显著意义 (P <0 0 5 ) ;Ⅰ、Ⅱ、Ⅲ度之间EF、RVF、OF值差异无显著意义 ,但Ⅳ度与 0、Ⅰ、Ⅱ、Ⅲ度间差异有显著意义 (P <0 0 5 )。综合向量分析 (HotellingT2 检验 )显示APG具备显著检验效能。结论　APG可准确诊断下肢深静脉瓣膜功能不全 ,静脉灌注指数是定量评价深静脉瓣膜功能不全返流程度的可靠指标。深静脉返流与小腿肌泵功能之间存在一种指数关系。更多还原

【Abstract】 Objective To study the diagnostic value of air plethysmography (APG) in deep venous valvular incompetence of lower limbs and the relationship between deep venous reflux and calf muscular pump function. Methods Sixty-five varicose cases (89 limbs) were detected by APG in alterations of venous filling index (VFI), ejection fraction(EF), residual volume fraction(RVF) and outflow fraction(OF). Of 89 limbs, 18 limbs were in GradeⅠ of deep venous reflux, 24 in Grade Ⅱ, 18 in Grade Ⅲ and 12 in Grade Ⅳ. Integrated vectors analysis (Hotelling T 2test) was done with these index. Venography was performed in all patients. Results There were statistical differences in VFI between each two Grades of deep venous reflux except for between Grade Ⅰ and Ⅱ. There were also statistical differences in EF,RVF and OF between Grade Ⅳ and the other Grades. Hotelling T 2test showed significant testing efficiency of APG. ConclusionsDeep venous valvular insufficiency of lower limbs can be assessed by APG. VFI is a reliable quantitative index for evaluating the degree of deep venous reflux. There may be an exponent relation between deep venous reflux and calf muscular pump function.更多还原