Experimental investigation of the measurement accuracy of mitral annulus by real-time three-dimensional echocardiography
- VernacularTitle:实时三维超声心动图测量二尖瓣环准确性的实验研究
- Author:
Xiatian LIU
;
Xinfang WANG
;
Mingxing XIE
;
Qing Lü
;
Li YUAN
;
Liangzhi FAN
- Publication Type:Journal Article
- Keywords:
Echocardiography,real-time three-dimensional;
Mitral valve
- From:
Chinese Journal of Ultrasonography
2008;17(5):442-445
- CountryChina
- Language:Chinese
-
Abstract:
Objective To validate the accuracy of real-time three-dimensional echocardiography(RT3DE) in measuring spatial geometric parameters of mitral annulus.Methods Hearts in vivo of nine healthy hybrid canines were examined by RT 3DE.Three-dimensional full-volume images of mitral annuli were acquired.The annuli were annotated and measured by TomTec 4D MV-assessment software and MATLAB.The distance between anterolateral and posteromedial commissure (commissure-commissure, CC),septolateral distance (septal-lateral, SL) and height (H) of mitral annulus were measured.Parameters correlation coefficients of CC,SL and H derived by two methods were 0.83( P＜0.01),0.78( P＜0.05)well consistent with anatomic measurements, the mean differences of CC, SL and H between two methods were 0.22 cm,0.12 cm and-0.08 cm respectively.Conclusions RT-3DE is feasible in measuring mitral annulus, which provided a convenient, accurate and reliable new method for quantitative assessing annulus geometry configuration.
