Myocardial Strain by Doppler Echocardiography

Myocardial strain is a measure of regional deformation, and by definition, negative strain means shortening and positive strain, elongation. This study investigates whether myocardial strain can be measured by Doppler echocardiography as the time integral of regional velocity gradients, using sonomicrometry as reference method.In 13 anesthetized dogs, myocardial longitudinal strain was measured on apical images as the time integral of regional...