BIOELECTRIC FEATURES OF TRANSITION TO EQUIVALENT ELECTRIC HEART GENERATOR FOR NON-INVASIVE
ELECTROCARDIODIAGNOSTICS 

Mikhail N. Kramm, Candidate of technical sciences, associate professor, professor of sub-department of fundamentals of radio engineering, National Research University (14 Krasnokazarmennaya street, Moscow, Russia) KrammMN @mail.ru

615.47:616–072.7

10.21685/2307-5538-2021-2-7

Background. In the task of increasing the efficiency of non-invasive electrocardiology, the question of localization of small spatial areas of heart electrical activity is important. The potential maps on the torso surface do not allow reflecting such areas, so, for the transition to the myocardium zone, it is necessary to have an adequate electrical model of the heart. The bioelectrical foundations of building such models are discussed in this article.
Materials and methods. The approaches to the determination of the electric field, created by the ensemble of myocardial cardiomyocytes in the torso conductive medium, are analyzed.
Results. We conduct a bioelectrical substantiation of the transition from elementary sources of an electric field, during the passage of an excitation wave in the ensemble of the heart muscle cardiomyocytes, to an equivalent electric heart generator.
Conclusions. The results are targeted on the construction of a heart digital twin by processing signals from multiple cardiac leads, which makes it possible to obtain the spatiotemporal characteristics of the heart electrical activity in information systems of non-invasive cardiac diagnostics.

electrical activity of the heart, myocardium, cardiomyocyte, torso, electrical potential, equivalent electrical generator, non-invasive cardio diagnostics