Title :
Identification of patient specific parameters for a minimal cardiac model
Author :
Hann, C.E. ; Chase, J.G. ; Shaw, G.M. ; Smith, B.W.
Author_Institution :
Dept. of Mech. Eng., Canterbury Univ., Christchurch, New Zealand
Abstract :
A minimal cardiac model has been developed which accurately captures the essential dynamics of the cardiovascular system (CVS). This paper develops an integral based parameter identification method for fast and accurate identification of patient specific parameters for this minimal model. The integral method is implemented using a single chamber model to prove the concept, and turns a previously nonlinear and nonconvex optimization problem into a linear and convex problem. The method can be readily extended to the full minimal cardiac model and enables rapid identification of model parameters to match a particular patient condition in clinical real time (3-5 minutes). This information can then be used to assist medical staff in understanding, diagnosis and treatment selection.
Keywords :
cardiology; optimisation; physiological models; 3 to 4 min; cardiovascular system; minimal cardiac model; parameter identification method; patient specific parameter; Blood flow; Differential equations; Humans; Information filtering; Information filters; Integral equations; Medical diagnostic imaging; Medical simulation; Medical treatment; Testing; Cardiac model; Convex; Diagnosis; Integral optimization; Patient specific parameters; Treatment selection;
Conference_Titel :
Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8439-3
DOI :
10.1109/IEMBS.2004.1403282