Vectorcardiographic Ventricular Gradient with Constituents, and Myocardial Action Potential Parameter Distribution

Authors

  • Eduard A. I. Aidu Institute for Information Transmission Problems of the Russian Academy of Sciences (Kharkevich Institute), Moscow, Russia https://orcid.org/0000-0001-9505-4404

DOI:

https://doi.org/10.2478/msr-2022-0005

Keywords:

vectorcardiography, dipole electrocardiotopography, ventricular gradient, action potential of cardiomyocytes, bidomain model of the myocardium

Abstract

Theoretical grounds of integral vectors of ventricular depolarization and repolarization and their sum, i.e., the spatial ventricular gradient, have been studied. A systematic description and biophysical interpretation of these parameters are presented based on the distribution of cardiomyocyte action potential parameters in the inhomogeneous bidomain model of the myocardium. Recent medical studies have shown high efficiency and predictive value of the ventricular gradient, its constituents and related parameters, such as the angle between the con-stituents, the acceleration of repolarization, etc. Simple examples for a myocardial strip clarify the relationship between the action potential parameters and the resulting ventricular gradient. An explanation with graphic illustration is given for the very informative decartogram of repolarization acceleration. The results obtained here are useful in the modeling of vectorcardiograms for various pathological conditions of the heart ventricles and for various characteristics of the cardiomyocyte action potential, which determine its shape.

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Published

21.01.2022

How to Cite

Aidu, E. A. I. (2022). Vectorcardiographic Ventricular Gradient with Constituents, and Myocardial Action Potential Parameter Distribution. Measurement Science Review, 22(1), 44–49. https://doi.org/10.2478/msr-2022-0005