Doppler tissue imaging to assess right ventricular function in patients with chronic pulmonary hypertension
- VernacularTitle:组织多普勒成像对慢性肺动脉高压患者右心室功能的评价
- Author:
Pingping YAN
;
Bin SUN
;
Zi YE
- Publication Type:Journal Article
- Keywords:
doppler tissue imaging;
pulmonary hypertension,chronic;
right ventricular function
- From:
Chinese Journal of Practical Internal Medicine
2003;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the right ventricular function of patients with chronic pulmonary hypertension using Doppler tissue imaging(DTI)and to evaluate the relationship between DTI parameters and pulmonary artery systolic pressure(PASP).Methods Thirty-five patients with chronic pulmonary hypertension and thirty-five healthy subjects underwent Doppler tissue echocardiographic evaluation of right ventricular function.The tricuspid lateral annular systolic velocity(Sm),early(Em)and late(Am)peak diastolic velocities,isovolumic contraction time(IVCT)and isovolumic relaxation time(IVRT)were acquired from apical 4-chamber view.Results When compared with control group,Sm,Ea and Em/Am values were found to be lower and Am,IVRT values higher in patients with chronic pulmonary hypertension.When all patients were analyzed,there was a significant positive correlation between PASP and IVRT(r=0.78,P
