【摘要】 目的应用起搏负荷超声评价冠心病左室舒张功能的改变。方法使用心脏程序刺激仪,提高心率至次极量,应用彩色多普勒超声心动仪检测肺静脉血流频谱的改变。结果正常人肺静脉血流收缩指数（SF）>50%,肺静脉返流速度(V_AR)<30cm/s,而冠心病组SF<40%,V_AR>40cm/s。结论肺静脉血流参数能较好地评价冠心病左室舒张功能状态。更多还原

【Abstract】 Objective To evalute left ventricle （LV） diastolic function of coronaty artery disease （CAD） with atrial pacing stress test.Methods Raising hear rate by heart order stimulus set,pulmonale vein blood flow spectrum were displayed by doppler echocaediograph, then reconded by VCRs.Results Pulmonale vein blood spectrum systole factor（SF）>50%、velocity of atrial regurgitation (V_AR)<30cm/s in normal people;SF<40%,V_AR>40cm/s in CAD.Conclusion by measuring Pulmonale vein blood spectrum parameters,LV diastolic func- tion was well evaluated.更多还原