Value of Quantitative Tissue Velocity and Strain Rate Imaging in the Acute Myocardial Ischemia of Emegency
Peng Jihong
Abstract：Objective To observe myocardial velocity and strain rate characteristics in patients with acute myocardial ischemia(AMI) of emergency,and to evaluate the clinical value of quantitative tissue velocity imaging(QTVI)and strain rate imaging(SRI)in quanti-tative assessment of left ventricular(LV)region infarction myocardial function.Methods Thirty two patients with AMI of coronary heart disease(CHD),30 control subjects were enrol ed in the study.Longitudinal peak velocity,strain rate of LV anterior wal (AW) and anterior interventricular septum(AS)during systole,early diastole and atrium contraction(VS,VE,VA),(SRS,SRE,SRA) were measured at different levels(basal,middle and apical).QTVI and SRI data were compared with coronary angiography results. Results VS:different levels of LV infarction wal significantly decreased in CHD group.VE:al levels of LV infarction wal ,except for apex levels of AS,were significantly lower than those in control group.VA:different levels of AW and apex level of AS in CHD group were significantly lower than those in control group.SRS and SRE:al levels of LV infarction wal in CHD group were significantly low-er than those in control group.SRA:different levels of AW and base level of AS in CHD group were significantly lower than those in control group (P<0.05,P<0.01 respectively).Conclusion QTVI and SRI are sensitive and feasible in evaluating functions of congestive heart failure of myocardial ischemia of emergency.
Keywords：acute myocardial ischemiaechocardiographyquantitative tissue velocity imagingstrain rate imagingemegency
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 757-760 )