Fig. 3

Layer-specific contours in short axis cine images, at endocardial (red), epicardial (green) and equally spaced intramyocardial contours (blue) at end-diastole and end-systole used for the calculation of layer-specific strain. A subset of the 20 total intramyocardial contours used for calculation of average strain are shown. Sample tracings for a mid-ventricular short-axis view are shown for a health control (top) and a patient with HFpEF (bottom). Strain values at each layer over the full cardiac cycle are shown on the right