Electrocardiographic mapping in a realistic torso tank preparation

Presents preliminary findings of mapping transient myocardial ischemia in an isolated heart preparation suspended in an instrumented, human shaped, electrolytic torso tank. The preparation allows the authors to record both epicardial and tank surface potentials simultaneously and thus capture the dynamic nature of acute ischemia through repeated episodes. The authors´ results demonstrate the utility of the preparation and reveal the need to consider geometrical relationships when using electrocardiographic potentials to estimate cardiac activity