Figure 1From: Cardiac mechanical activation mapping in heart failure patients with left bundle branch block using cine DENSE MRI(a) A strain matrix reveals pre-stretch and late activation of the lateral wall (red arrow) in a patient with heart failure and LBBB. An active contour (black line) detects the mechanical activation times for all LV segments. (b) The corresponding activation time map shows late activation of the anterolateral wall.Back to article page