Title :
Parameter estimation in cardiovascular models
Author :
Yu, Yih-Choung ; Boston, J.R. ; Antaki, James ; Simaan, Marwan ; Breitenstein, Darryl B.
Author_Institution :
Dept. of Electr. Eng., Pittsburgh Univ., PA, USA
Abstract :
An extended Kalman filter (EKF) was used to estimate the values of the parameters of a simple electrical model of the cardiovascular system. Left ventricular function was modeled as a 3 parameter time-varying capacitance and the systemic circulation was modeled with a Windkessel-type circuit. Independent parameters estimates can be obtained during the ejection and filling phases, and the same estimator can be used with different combinations of measurements. Preliminary performance evaluations using data from a simulation of the cardiovascular system are described
Keywords :
Kalman filters; cardiology; haemodynamics; parameter estimation; physiological models; 3-parameter time-varying capacitance; Windkessel-type circuit; cardiovascular model parameter estimation; cardiovascular system simulation; ejection phase; extended Kalman filter; filling phase; left ventricular function; simple electrical model; systemic circulation; Cardiology; Cardiovascular system; Filling; Fluid flow measurement; Parameter estimation; Phase estimation; Phase measurement; Pressure measurement; State estimation; Time varying systems;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.579763
