Evaluation of right ventricular systolic function using two-dimensional speckle tracking of tricuspid annular displacement
10.3760/cma.j.issn.1004-4477.2009.12.007
- VernacularTitle:斑点追踪显像检测三尖瓣环位移评估右心室收缩功能的应用价值
- Author:
Weihua WU
;
Yan HUANG
;
Xiaoyi XIE
;
Lan MA
;
Jing LIU
;
Songxia WEI
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Ventricular function,right;
Cardiomyopathy,dilated;
Tricuspid valve;
Speckle tracking imaging
- From:
Chinese Journal of Ultrasonography
2009;18(12):1034-1036
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the usefulness of tricuspid annular displacement(TAD),based on twodimensional speckle tracking imaging, for assessment of right ventricular(RV)systolic function.Methods Eighteen patientswith dilated cardiomyopathy and 20 age-matched healthy volunteers were in volved. Twodimensional and real-time three-dimensional(RT3D)imaging were obtained in all patients at apical four-chamber view.The parameters of TAD were derived from off-line QLAB software.RT3D-RV ejection fraction(RVEF)was calculated by using 4D RV function software.Results TAD data were acquired in all 38 cases, while RT3D-RVEF was done in 30 out of 38.The parameters of TAD correlated well with RVEF(P<0.01).The parameters of TAD in dilated cardiomyopathy group were significantly lower than the corresponding values in healthy subjects (P<0.01).The intra-and interobserver variabilities for measurement of TAD were(0.49±2.69)mm and(0.21± 0.60)mm, respectively.Conclusions TAD,based on two-dimensional speckle tracking imaging,proved to be a rapid and reproducible method in determining RV global systolic function.
