Figure 2
A. Example of myocardial tracing and segmentation in a short-axis slice. Endocardial border is shown in green and epicardial border in yellow. The LV myocardium was segmented into 4 sectors (anterior, lateral, inferior, septal). B. Blood pool and segmental myocardial time-intensity curves. Maximum up-slopes (black lines) were determined for the blood pool and for each myocardial segment; the mean myocardial up-slope was then normalized to the blood pool up-slope.