Figure 1.
А. Representative epicardial maps of ATs and ARIs distribution in three rats across ischemic, border and normal zones at the low and high levels of [K+].
Numbers indicate the values of ATs and ARIs in individual leads. The filling color in the maps corresponds to a time scale (red for short and blue for long time values). The red, blue, and black numbers refer to the ischemic area with ST–segment elevation and activation delay; the border zone with ST–segment elevation without activation delay; and the normal area without AT and ARI abnormalities, respectively.
B. The representative profiles of ATs and ARIs on the ischemia-to-normal axes indicated by dotted arrows in the corresponding epicardial maps of ATs and ARIs. Red, blue, and black sections of the diagrams correspond to the ischemic zone, border zone, and normal zone, respectively. See the absence of the border zone at [К+]=6.28 mM.
C. Representative electrograms recorded in the ischemic (1), border (2) and normal (3) zones.