摘要
目的比较实时三维超声心动图和组织多普勒显像在分析正常人和心衰患者左心室收缩同步性中的临床价值。方法应用实时三维经胸超声心动图和组织多普勒检查心力衰竭患者22例和正常对照组20例。得到左室舒张末期容积、收缩末期容积、左室射血分数、心电图Q波起始点距离16节段容积最小容积点时间间隔的标准差(Tmsv16-SD)及其标准化值[Tmsv16-SD/R-R(%)]。对组织多普勒显像进行定量评价,得到心电图Q波起始点到收缩波峰值的标准差(Ts-SD)。结果心力衰竭组的各项收缩不同步指标Ts-SD、Tmsvl6-SD、Tmsv16-SD/R-R(%)均明显大于正常对照组(均P<0.01)。Ts-SD与Tmsv16-SD和Tmsv16-SD/R-R(%)的相关性分别为r=0.61和r=0.67(均P<0.01)。结论实时三维超声心动图和组织多普勒均能够评价左室心肌收缩同步性,两种方法的评价结果具有一定的相关性。
Objective To investigate the correlation of systolic dyssynchrony between real-time three-dimensional echocardiography （RT-3 DE） and tissue Doppler imaging（TDI）. Methods Twenty healthy subjects and Twenty-two patients with heart failure （HF）were enrolled and underwent RT-3DE and TDI in this study. Full volume RT-3DE and TDI were performed and analyzed using Philips iE33 echocardiographic imaging system and Qlab software. The systolic dyssynchrony parameters which derived from RT-3DE were the dispersion of time to minimum regional volume for 16 left ventricular segments（Tmsv16-SD）. TDI dyssynchrony indexes included the standard deviation of time to peak systolic velocity （Ts-SD）. Results All the indexes of systolic dyasynchrony which mentioned above were significantly larger in the heart failure group than those of the control group （ all P 〈 0. 01 ）. Ts-SD was well correlated to Tmsv16-SD,Tmsv16-SD/R-R （%） （r = 0.61 and 0. 67,P 〈0. 01 ）. Conclusion RT-3DE and TDI provide effective tools to assess the left ventricular systolic synchronicity. There are various degree of correlations between some synchrony parameters of RT-3DE and TDI.
出处
《安徽医科大学学报》
CAS
北大核心
2009年第3期366-368,共3页
Acta Universitatis Medicinalis Anhui
关键词
超声心动描记术
三维
心力衰竭
充血性
echocardiography, three dimensional
heart failure, congestive
