Usefulness of the myocardial performance index for assessing right ventricular function in patients with atrial septal defect
- VernacularTitle:心肌工作指数评价房间隔缺损患者右心功能的临床研究
- Author:
Jiandong DING
;
Fengxiang LU
;
Di XU
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Heart septal defects,atrial;
Ventricular function,right;
Myocardial performance index
- From:
Chinese Journal of Ultrasonography
2003;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the clinical value of myocardial performance index (MPI) in the assessment of right ventricular function in the patients with atrial septal defect (ASD). Methods The study included 23 patients with ASD and 81 normal subjects. MPI, defined as the sum of isovolumic relaxation time and isovolumic contraction time derived by ejection time, was measured from tricupid inflow and right ventricular outflow Doppler velocity profiles recorded during routine echocardiography. Results ①The isovolumic relaxation and isovolumic contraction times [respectively ( 74.78 ? 13.86 )ms vs ( 60.93 ? 12.94 )ms, P
