A simulator of a pulsatile heart

R.D. Grygoryan, A.G. Degoda, E.A. Dzhurinsky, D.S. Kharsun


For IBM-compatible personal computers, a software simulator (SS) is created. SS is based on special mathematical model (MM) of human hemodynamics. MM represents the cardiovascular system (CVS) in lumped parameters and with a fixed neurohumoral background corresponding to the rest. By means of the SS the user can provide simulation scenarios including of changes in the initial state of the CVS for the calculation of the hemodynamic reactions. There are two ways to set the scenario: either from the list presented in the user interface, or from the combination of elementary procedures. In current version of the SS the atriums are absent, the cardiac activity is modeled by the description of ventricular pulsations. SS demonstrates the main regularities of the physiology of CVS in small and large circles of the circulation. SS visualizes hemodynamic transformations caused by defects of the heart valves, right / left ventricular hypofunction (due to worsening of the coronary blood flow, pathology of cardiomyocytes, myocardial hypertrophy). The hemodynamic effects caused via variations of the rate and power of contraction of the right or left ventricles were studied. It is planned to create a complex model based on MM, but taking into account the neurohumoral regulation of the heart pump, the vascular tone and blood volume. Such a complex model will be a problem-oriented information technology for the cardiologist. SS is programmed in Java.

Problems in programming 2017; 4: 098-0108


mathematical model; ventric­les of the heart; valves; cardiology; educational process; information tech­nology


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DOI: https://doi.org/10.15407/pp2017.04.098


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