Parameter estimation of spiral waves from atrial electrograms

The problem of retrieving spiral wave parameters (frequency, radial velocity, and center location) using a minimal number (4) of spatial sensors is considered. The problem has the important application of localization of spiral wave sources of atrial fibrillation from basket catheter electrograms. Numerical simulations demonstrate that our algorithm works effectively for a wide range of parameters, and for spiral waves generated by a cellular automaton model of cardiac wave propagation.

[1]  J. Tyson,et al.  A cellular automation model of excitable media including curvature and dispersion. , 1990, Science.

[2]  B. Hess,et al.  Isotropic cellular automaton for modelling excitable media , 1990, Nature.

[3]  李永军,et al.  Atrial Fibrillation , 1999 .

[4]  J. Waktare,et al.  ATRIAL fibrillation. , 2002, The Heart bulletin.

[5]  Michel Haïssaguerre,et al.  Ablation therapy for atrial fibrillation (AF): past, present and future. , 2002, Cardiovascular research.

[6]  J Jalife,et al.  Stable microreentrant sources as a mechanism of atrial fibrillation in the isolated sheep heart. , 2000, Circulation.

[7]  J. V. Tucker,et al.  Hierarchical reconstructions of cardiac tissue , 2002 .

[8]  S Nattel,et al.  Basic mechanisms of atrial fibrillation--very new insights into very old ideas. , 2000, Annual review of physiology.

[9]  M. Mansour,et al.  Mother rotors and fibrillatory conduction: a mechanism of atrial fibrillation. , 2002, Cardiovascular research.

[10]  U. Tiede,et al.  Simulation of cardiac excitation patterns in a three-dimensional anatomical heart atlas , 2000, Comput. Biol. Medicine.

[11]  W. Rheinboldt,et al.  A COMPUTER MODEL OF ATRIAL FIBRILLATION. , 1964, American heart journal.

[12]  J Clémenty,et al.  Spontaneous initiation of atrial fibrillation by ectopic beats originating in the pulmonary veins. , 1998, The New England journal of medicine.

[13]  A ROSENBLUETH,et al.  The mathematical formulation of the problem of conduction of impulses in a network of connected excitable elements, specifically in cardiac muscle. , 1946, Archivos del Instituto de Cardiologia de Mexico.