Title :
Parameter estimation of spiral waves from atrial electrograms
Author :
Xiao, Yuping ; Zheng, Yibin ; Jordan, Donald A. ; Akar, Joseph G. ; Haines, David E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Virginia, Charlottesville, VA, USA
Abstract :
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.
Keywords :
cardiology; cellular automata; frequency estimation; medical signal detection; source separation; wave propagation; atrial electrograms; atrial fibrillation; basket catheter electrograms; cardiac wave propagation; cellular automaton model; center location; frequency; numerical simulations; parameter estimation; radial velocity; spatial sensors; spiral wave source localization; Atrial fibrillation; Automata; Cardiac tissue; Catheters; Electrodes; Heart; Lesions; Medical treatment; Parameter estimation; Spirals;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1199914
