Two-dimensional Strain Imaging of Ultrasound in Evaluation of Myocardial Systolic Function of Left Ventricle in Patients with Acute Myocardial Infarction / 医学研究杂志

ABSTRACT

Objective To evaluate left ventricular function in patients with acute myocardial infarction and to investigate the clinical value by two-dimensional strain imaging of ultrasound.Methods Study population was consisted of 28 patients with acute myocardial infarction of wall anterior and 30 healthy subjects.Images were recorded from the left ventricular the apical 4-chamber view,apical 3-chamber view,apical 2-chamber view respectively.Two-dimensional strain and strain rate were measured in the left ventricular segments using two-dimensional strain software.We analyzed that relationship between two-dimensional the global peak systolic strain,global strain rate and left ventricular end systolic volume(LVESV),left ventricular end diastolic volume(LVEDV),wall motion score index(WMSI),left ventricular ejection fraction(LVEF).Results ①Infarct segments in myocardial infarction group showed significant reduction of peak systolic strain as compared with normal group(P