Parameter estimation based on a switched observer for the study of left ventricle contractility
Abstract
In this paper a method for estimating maximum ventricular elastance through a switched observer isproposed, based on measurement of ventricular volume (and possibly aortic pressure). The proposedswitched observer, i.e, an observer for a switched system, is derived from an electrical-analogmodel of the left ventricle and systemic load. An observability study was a priori conducted on themodel, restricted to the ejection phase, to validate the estimation procedure. The method has beenevaluated with simulated data and produced good results.
