Visualization of a Digital Twin of the Heart

This paper considers methods applying of computer graphics for visualization of electrical activity of the heart based on algorithms for topological transformation and a voxel representation of a 3-D heart model. A distinctive feature of a proposed approach is use of a spring voxel as a unit volume, which mathematical model is a rough approximation of the heart muscle cell - a cardiomyocyte. The article describes criteria for choosing a technological platform for visualization 3D objects, considers such a modern visualization system as Unity3D. A process of voxelization of a superficial model of the heart is described, as well as mathematical models of a spring voxel for performing visualization of propagation based on the Aliev-Panfilov conceptual model of excitation of the atria and ventricles according to readings of an electrocardiogram. Possibility of presenting ischemic myocardial damage by a depth of damage to the heart muscle (transmural, intramural, subendocardial, subepicardial) using the developed model is also considered.