Estimation of right ventricular global function using Tei index in patients with hypertrophic cardiomyopathy
- VernacularTitle:Tei指数评价肥厚型心肌病右心功能
- Author:
Xingke QIAO
;
Zhanquan LI
;
Ying LIU
;
Fang ZHU
;
Xuwei DUAN
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Cardiomyopathy,hypertrophic;
Ventricular function,right;
Tei index
- From:
Chinese Journal of Ultrasonography
1993;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of Tei index for estimating right ventricular global function in patients with dissymmetry hypertrophic cardiomyopathy(including obstructive and nonobstructive).Methods Pulsed wave Doppler of transtricuspid flow and transpulmonic valve flow were performed in hypertrophic obstructive cardiomyopathy(HOCM,n=28),hypertrophic nonobstructive cardiomyopathy(HNCM,n=34), and healthy control subjects(n=30) at apical four-chamber view and short-axis view of aortic root,and Tei index was calculated.Results~①Accelerating contraction time/right ventricular ejection time(ACT/RVET),isovolumetric contraction time(ICT),isovolumetric relaxation time(IRT),isovolumetric contraction time+isovolumetric relaxation time(ICT+IRT),right ventricular ejection time(RVET),ACT/RVET and Tei index[(ICT+IRT)/RVET] showed no significant changes between the groups of HOCM and HNCM.②Tei index was distinctly different between patients with HCM and control subjects(P
