Study on systolic and diastolic function by myocardial strain rate imaging in patients with hypertrophic cardiomyopathy
- VernacularTitle:应变率显像对肥厚型心肌病心肌收缩和舒张功能的研究
- Author:
Yuming MU
;
Chunmei WANG
;
Qi TANG
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Cardiomyopathy,hypertrophic;
Myocardium;
Strain rate
- From:
Chinese Journal of Ultrasonography
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the systolic and diastolic function in hypertrophic segments by myocardial strain rate imaging in the patients with hypertrophic cardiomyopathy (HCM).Methods Ten patients with HCM in the mid segment of the ventricular septum and 20 age-matched healthy controls were included.The myocardial strain rate (SR) curves in bas,mid and apical segments were respectively acquired on the left ventricular septum longitudinal axis position for all the participants,and the SR curves of endocardial,mid-myocardial,epicardial layers in mid segment were also acquired.The SR values including the peak systolic SR,the peak early-diastolic SR,the peak late-diastolic SR were respectively measured,the left ventricular eject fraction (EF) and the Doppler transmitral filling velocities (E and A values) were also measured.Results SR values measured from the hypertrophic segments were significantly lower than those from the corresponding segments of the septum in control group (P
