Title :
Optimization of coronary circulatory system characterized by nonlinear properties of coronary vessels
Author :
Hirayama, H. ; Yamazawa, H.
Author_Institution :
Dept. of Public Health, Asahikawa Medical Univ., Japan
Abstract :
We have proposed an optimized electrical circuit for intra myocardial coronary circulation to make clear the influence of nonlinear dependencies of intra myocardial vessel resistance and compliance on the passive intra myocardial pressure. With increases in the exponents that describe the nonlinearity of the resistance and compliance, the time courses of the optimized passive pressures were altered significantly. The present analysis showed that the nonlinearity in an intra myocardial vessel is important in producing physiological intra myocardial passive pressures
Keywords :
biocontrol; cardiovascular system; haemodynamics; optimal control; physiological models; pressure control; coronary vessels; intra myocardial coronary circulation; intra myocardial vessel compliance; intra myocardial vessel resistance; nonlinear dependencies; nonlinear properties; optimized electrical circuit; passive intra myocardial pressure; Arterial blood circulation; Capacitance; Circuits; Circulatory system; Cities and towns; Linearity; Muscles; Myocardium; Optimal control; Public healthcare;
Conference_Titel :
SICE '98. Proceedings of the 37th SICE Annual Conference. International Session Papers
Conference_Location :
Chiba
DOI :
10.1109/SICE.1998.742919
