实时三维超声心动图联合 Tei指数评价心力衰竭患者心功能的研究

摘要

Objective To evaluate left ventricular function (LVF) in patients with heart failure (HF) evaluated by using real-time three-dimensional echocardiography ( RT-3DE) in combination with Tei index .Methods RT-3DE and pulsed doppler ultrasound were used to measure left ventricular end diastolic volume ( LVEDV) ,left ventricular end systolic volume(LVESV),left ventricular ejection fraction (LVEF),left ventricular mass(LVM),ejection time(ET) and Tei index in 104 patients with HF and 74 healthy volunteers ( control group).Results LVEDV,LVESV,LVM,left ventricular mass index ( LVMI) and Tei index were significantly higher but LVEF and ET were significantly lower in patients with HF in contrast with those in the control group ( P<0 .05 ) .LVEF negatively correlated with LVM while Tei index positively correlated with LVM in patients with HF ( P<0 .05 ) , and Tei index negatively correlated with LVEF(P<0.05).Conclusion RT-3DE combined with Tei index can accurately evaluate LVF in patients with HF better , judge the severity of HF effectively , and provide the evidences for HF typing .%目的：探讨实时三维超声心动图（ RT-3DE）联合Tei指数评价心力衰竭患者左室心功能的效果。方法应用RT-3 DE和脉冲多普勒超声分别测量104例心力衰竭患者和74例正常人（对照组）的左室舒张末期容积（LVEDV）、收缩末期容积（LVESV）、射血分数（LVEF）、左室心肌质量（LVM）、射血时间（ET）和Tei指数。结果心力衰竭患者的LVEDV、LVESV、LVM、左室心肌质量指数（ LVMI ）和Tei指数均明显大于对照组（P＜0．05），LVEF和ET明显小于对照组（P＜0．05）。心力衰竭患者LVEF与LVM呈负相关关系（P＜0．05）， Tei指数与LVM呈正相关关系（P＜0．05）；Tei指数与LVEF呈负相关关系（P＜0．05）。结论 RT-3DE联合Tei指数能更好地准确评价心力衰竭患者的左室功能，有效判断心力衰竭的严重程度，并提供分型依据。