Figure 1

Clinical body surface maps. The left hand panel shows a difference map between patients with LAD occlusions and healthy subjects adapted from Hanninen et al.[4] Positive potentials are shown in aqua, negative potentials in green and the 0 line in red. Preocordial lead positions are indicated by filled black circles. The right hand panel shows body surface maps adapted from Kubota et al.[6] in the case of LAD, LCX and RCA occlusions. The color scheme is identical to the left hand panel. The isopotential contour interval is 0.1 mV. The time the map was recorded, measured with respect to the J point, is indicated by the electrogram to the left of each map. The "x" in each map indicates the site of the minimum during the early ST segment, and the arrow indicates the movement of the minimum throughout the ST segment. See text for additional details.