【摘要】 目的 :通过超声心动图 (UCG)检查测算心血管系统的生物学年龄。方法 :对320位高校健康教师行UCG检查 ,测量心血管系统结构及功能的多项指标。经相关分析筛选出老化指标,经多元回归分析建立心血管系统生物学年龄的回归方程。结果 :二尖瓣频谱E波的峰值速度与A波的峰值的比值 ,等容松弛时间 ,室间隔与主动脉根部的夹角 ,主动脉运动幅度是较敏感的老化指标 ,可进入多元回归方程。结论 :由超声参数可求出心血管系统生物学年龄的近似值。更多还原

【Abstract】 Objective: To evaluate the biological age of cardiovascular system with echocardiographic indexes. Methods: Three hundred twenty cases of healthy intellectuals from universities underwent echocardiography. Some echocardiographic indexes were selected to evaluate the cardiac aging condition by correlation and regression analysis. The biological age of the heart were assessed by multiple stepwise regression analysis. Results: Ratio of rapid filling peak velocity to atrial peak velocity(E/A), relaxation time, the angle between septum and the root of aorta and the amplitude of aortic wall movement were the sensitive cardiac aging indexes and could enter multiple stepwise regression equation. Conclusion: the biological age of the cardiovascular system could be approximately evaluated by echocardiographic indexes .更多还原