目的 探讨血管回声跟踪(ET)技术评价主动吸烟者与被动吸烟者股动脉血管弹性功能的应用价值.方法 利用ET技术检测40例主动吸烟者、40例被动吸烟者、40例健康对照组的股动脉,通过内-中膜厚度(IMT)、僵硬度(β)、压力-应变弹性系数(Eρ)、动脉顺应性(AC)、脉搏波放大指数(AI)及脉搏波传导速度(PWVβ)评价动脉硬化程度.结果主动吸烟组AI、PWVβ高于被动吸烟组,差异有统计学意义(P<0.05);主动吸烟组、被动吸烟组β和Eρ均高于对照组,差异有统计学意义(P<0.05); 主动吸烟组、被动吸烟组AC均低于对照组,差异有统计学意义(P<0.01).结论 ET技术可早期发现被动吸烟者和主动吸烟者股动脉弹性功能的改变,测量结果精确,是一种无创、便捷的检查方法.%Objective To explore the application value of E - tracking technology (ET) in evaluating femoral artery elasticity in passive smokers and active smokers. Methods Forty active smokers, 40 passive smokers and 40 normal persons (the control group) were enrolled in this study. The arteriosclerosis degree was evaluated by (intima- media thickness) IMT,pressure- strain elastic modulus (Ep), stiffness parameters (β), arterial compliance (AC), pulse amplification index (Al),Pulse wave transmission speed(PWVβ). Results Al and PWVβ in active smoking group were higher than those in passive smoking group, while βand Eρ in active smoking group and passive smoking group were higher than those in normal control group (P ＜0.05), there was significant difference. AC was lower in passive and active smokers than that in normal control group,there was significant difference ( P ＜ 0.01 ). Conclusion As a convenient and non - invasive method, ET can be used to access the vessel dysfunction of passive and active smokers accurately.
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