An Electromagnetic Field Model of Cardiac Excitation on Transverse Electric Current to Induce The Magnetic Field

Understanding the magnetic field distribution in the heart is crucial for interpreting electrocardiography (ECG) and magnetocardiography (MCG) results. However, its mathematical model has been restricted by the cardiac fibre orientation and has not been successful in some cases. In this paper, a novel electromagnetic model of cardiac electric signal propagation is proposed to provide a complete description of the magnetic field in multidimensional cardiac tissue which can be generated regardless of the cardiac fiber orientation. The derived Maxwell’s equations, which are equivalent to those of the generic two-variable model, are identical to the classical electromagnetic field equations, but for a different medium, and provide a unified macroscopic propagation description of cardiac electric signal in multidimensional anisotropic space.