Fig.2. Representative isochronal maps of activation time (left panel) and activation-repolarization interval (ARI, right panel) in the control and two diabetic animals with the different duration of DM prior to coronary occlusion. Numbers on the scales indicate time in milliseconds from the QRS onset. The left, and right sides of each map correspond to the anterior and posterior surface of the ventricle, respectively. See progressive prolongation of repolarization in the apex area in the diabetic animals.