Correlation of the right ventricular systolic function indexes evaluated by two-and three-dimensional echocardiography with physical development in normal children
10.3760/cma.j.issn.1004-4477.2012.09.001
- VernacularTitle:二维及实时三维超声心动图评价正常儿童右心室收缩功能与体格发育的相关性研究
- Author:
Jun GAO
;
Mingxing XIE
;
Qing Lü
;
Lingyun FANG
;
Lin HE
;
Li ZHANG
;
Wei LI
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Ventricular functin,right;
Child
- From:
Chinese Journal of Ultrasonography
2012;21(9):737-741
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the right ventricular global systolic function by real-time three dimensional echocardiography (RT-3DE) and two dimensional echocardiography (2DE) in normal children,and investigate their correlation with age,height,weight,body surface area (BSA) and cardiac cycle time.Methods In 192 normal children,2DE right ventricular systolic function indexes were obtained at the apical four chamber view,including:tricuspid annular lateral wall peak systolic excursion (TAPSE),tricuspid annular peak systolic velocity (TRV) and right ventricular systolic area shortening (RVa).Full volume imaging of right ventricle was obtained at the parasternal four-chamber view near the apex by RT-3DE.The right ventricular ejection fraction (RVEF) was analyzed by TomTec RV-Function.The correlation analysis was performed between RT-3DE and 2DE indexes.The correlation and regression analysis on RT-3DE and 2DE indexes with above physical development indexes were also studied.At the same time 192 normal children were divided into five groups by age.2DE and RT-3DE indexes were compared with each other among five age groups.Results RVEF had no statistical correlation with all 2DE indexes (P ＞0.05).The correlation analysis on RT-3DE and 2DE indexes with physical development indexes demonstrated that TAPSE,TRV had strong positive correlation with the above indexes (P =0.000),while RVa had no statistical correlation with the above indexes (P ＞0.05).RVEF had weak positive correlation with cardiac cycle time r =0.180,P =0.014),but it had no statistical correlation with the other indexes (P ＞0.05).Stepwise regression analysis showed that the significant factor for TAPSE and TRV was height (R2 =0.508,P =0.000)and BSA (R2 =0.130,P =0.000)separately.In five age groups RVEF and RVa remained constant (P ＞0.05).However for TAPSE and TRV significant difference were found in part of comparisons between groups(P ＜0.05).Conclusions Although RVEF assessed by RT-3DE was slightly influenced by heart rate,it was independent of age,height,weight,BSA.It was a stable index for evaluating right ventricular systolic function among different age and physical development population.
