This work evaluates the potential of porcine cardiac stimulation (CS) studies using transcranial magnetic stimulation (TMS) devices with the aim of determining appropriate safety limits for MRI gradients. We investigated the electric fields induced in electromagnetic porcine models and found that typical TMS coils may not generate fields strong enough for CS. Larger coplanar coils, however, may be suitable for CS studies. In addition to these investigations, we created a porcine model from MRI Dixon and cardiac CINE measurements. The use of such custom models of the animal under experimentation will facilitate the comparison between measured and simulated CS thresholds.