| Abstract: |  The first task is to create a simulation of electrocardiogram (ECG) of selected pathological heart rhythm. The course electrical heart vector (EHV) in 3D is created by composing of some parametric equations. The set of position vectors is created to define a 3D arrangement of electrodes according to patient's 12-lead ECG system. The potential at each electrode is calculated as a projection of EHV to the direction of position vector of electrode. The voltage of each lead is then calculated as a difference between potentials at appropriate pair of
electrodes. This procedure was implemented on C# code language.
The second task is to suggest a simulation of spread electrical potential in heart electrical system with possibility of defect simulation. Suitable solution is taken from the Department of
Medical Physics, University of Nijmegen. The simulation used the equivalent surface source model in which the sources are of the double layer type. The third task is to create an application of representation ECG curves based on .NET platform. Created internet application run on Microsoft Silverlight 3 enabled simulated
physiological and pathological ECG curves and so showed vectorcardiogram (VCG) in 3D area.
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