Evaluation of regional myocardial function after coronary stenting pulsed wave Doppler tissue imaging
- VernacularTitle:脉冲组织多普勒成像技术评价左前降支内支架置入术后左心室局部功能
- Author:
Jian-Bin GONG
;
Jian-Hong JIANG
;
Shi-Sen JIANG
;
Hui SUN
;
Li-Jun WANG
;
Yong-Ping PENG
;
Ying ZOU
;
Bao-Jun LIU
;
- Publication Type:Journal Article
- Keywords:
Pulsed wave Doppler tissue imaging;
Coronary Stenting;
Left anterior descending coronary artery
- From:
Journal of Medical Postgraduates
2005;0(S1):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To assess the regional systolic and diastolic function of left ventricle before and after coronary stent implantation by pulsed wave Doppler tissue imaging (PW-DTI). Methods: Twenty-six patients with coronary artery disease ( CAD) involving only left anterior descending coronary artery ( LAD) were examined within 1-3 days before, 7 days and 30 days after coronary stenting with PW-DTI. Peak systolic , peak early diastolic, and peak late diastolic motion velocities ( Sm, Em, and Am respectively) were measured at 6 different sites on the basal and medial segments corresponding to the anteroseptal, postero-septal, lateral, anterior, inferior, and posterior walls of the left ventricle. Results:In corresponding segments depending on LAD blood flow supply, Sm was increased significantly 7 days after the stenting proce- dure. Em was also increased 7 days after the procedure in most of the corresponding segments. There were little changes in other segments that were independent on LAD blood flow supply. Conclusion: These findings suggest that there is an early improvement in the regional systolic and diastolic function of the left ventricle after the coronary stenting, and that PW-DTI techniques could evaluate quantitatively the regional ventricular performance in patients receiving percutaneous coronary intervention.
