METHOD assessing the viability of myocardial segments and predicting the efficacy of surgical revascularization in patients after myocardial infarction

摘要

A method of evaluating the viability of myocardial segments in patients after myocardial infarction using stress echocardiography dobutamine, characterized in that the evaluation is performed by quantitative analysis of the deformation rate study segments using tissue Doppler imaging of the myocardium and further calculation contractility reserve of the formula: where PC - reserve contractility investigational segment left ventricular myocardium,%; SRiskh - baseline rate of deformation of the test segment of the left ventricular myocardium, s; SRmaks - maximal level deformation rate of left ventricular myocardial segment investigated during administration of low doses of dobutamine (5-10 mg / kg / min), c, and contractility reserve value 25% myocardial segment evaluated as viable.