Three-dimensional bidomain simulation of electrical propagation in cardiac tissue

Though cardiac tissues are inherently three-dimensional in nature, three-dimensional bidomain models have been used only in a limited number of studies due to the constraints on computer processing power. Here, the authors describe the study of three-dimensional propagation effects in cardiac tissues using a data parallel finite difference bidomain model. The data parallel approach allows the use of a massively parallel computer to provide the solutions for large problems. Electrical propagation results are presented for different stimulation schemes, various ionic current models and different conductivities