Assessment of left and right ventricular functions in patients with isolated disease of right coronary artery by two-dimensional speckle tracking imaging
10.3760/cma.j.issn.1004-4477.2012.08.008
- VernacularTitle:二维斑点追踪技术对单支右冠脉病变患者左右心室功能的评价
- Author:
Chenfang SONG
;
Qing ZHOU
;
Jia HUANG
;
Bo HU
;
Qing DENG
;
Ruiqiang GUO
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Coronary disease;
Ventricular function
- From:
Chinese Journal of Ultrasonography
2012;21(8):665-669
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the usefulness of speckle tracking imaging(STI) for assessment of left ventricular(LV) and right ventricular (RV) functions in patients with isolated disease of right coronary artery.Methods 45 cases were diagnosed as single right coronary lesions given echocardiography,30 cases had chest pain but coronary angiography had not seen the obvious narrow as a comparison.The twodimensional loop-cinec were obtained in apical 4-chamber view,apical 2-chamber view and long axis of LV view.Eighteen segments of LV longitudinal peak systolic strain,global peak systolic strain of each view and three segments of RV free wall were measured by two-dimensional strain software.Results In the patients who had right coronary lesions but did not happen myocardial infarction,the strain(S) values in the base,mid and apex segmental of LV post wall,the base and mid segmental of LV inferior wall and the base and mid segmental of LV septum were significantly lower( P ＜0.05).The S values in the mid segment of RV free wall was lower( P ＜0.05).In the patients who had right coronary lesions and myocardial infarction,the S values in the base,mid segmental of LV antsept,the apex segmental of LV anterior wall,the base,mid and apex segmental of LV post wall,the base and mid segmental of LV inferior wall and the base and mid segmental of LV septum were significantly lower( P ＜0.05).The S values in the mid and apex segments of RV free wall were lower ( P ＜0.05).And the LV global longitudinal strains were lower in the two groups (P ＜0.05).Conclusions STI is a new and useful technology for assessment ventricular functions in patients with isolated disease of right coronary artery,and there are multiple segments impaired.
