Quantitative Tissue Velocity Imaging in Evaluation of Left Atrial Systolic Function in Patients with Acute Myocardial Infarction
10.3969/j.issn.0253-9896.2010.03.006
- VernacularTitle:定量组织速度成像评价急性心肌梗死患者左心房收缩功能
- Author:
Yanlan LIU
;
Changyu ZHOU
;
Chenghuan ZHENG
;
Huaying FU
;
Keqiang LIU
- Publication Type:Journal Article
- Keywords:
echocardiagraphy;
myocardial infarction;
acute disease;
atrial function,left;
cardiac volume
- From:
Tianjin Medical Journal
2010;38(3):176-179,后插6
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the changes of the left atrial systolic function in patients with acute myocardial infarction(AMI)using quantitative tissue velocity imaging(QTVI).Methods:The systolic velocities of the middle of left atrial lateral wall,anterior wall,inferior wall and atrial septum were measured with QTV1 in 45 patients with AMI.The left atrial volume and active atrial emptying fraction(AA-EF)were measured using single-plane Simpson method.Results:(1)Compared with the control group(30 normal subjects),the diameter and volume of the left atrium,as well as AA-EF,increased obviously in patients with AMI(P ＜ 0.01).(2)Compared with the control group,the systolic velocities of the middle of left atrial lateral wall,anterior wall,inferior wall and atrial septum,as well as the average value,increased significantly in patients with AMI (P ＜ 0.05 or P ＜ 0.01).In addition,the average value of left atrial systolic velocity was closely correlated with AA-EF(r=-0.906,tr=14.001,P ＜ 0.01).Conclusion:QTVI could be used to evaluate the left atrial systolic function accurately in patients with AMI.
