CONSTRUCTION OF THE GEOMETRICAL-CONDUCTIVITY HUMAN CHEST MODEL IN SIMULATION OF THE CARDIAC ELECTRICAL-FIELD

In this article the problem of the construction of the geometrical-con ductivity model of a human chest in a computer simulation of the cardi ac electrical field, applying image diagnostic data (CT, conventional radiography and 2D projections of a torso) is presented. On the basis of these data parameters are defined which allow the determination of locations and sizes of significant chest organs. Calculations and comp arison of the values of these parameters for CT and radiographic data of the example patient, using image processing methods, have been carr ied out. A numerical experiment has been performed to determine the ep icardial maps, applying two geometrical-conductivity models of the ind ividual patient based on CT (accurate) and radiographic (approximate) image data, respectively. The credibility of the results obtained is d iscussed.