Presentation 2008-09-25
Chaos and Fractal Analyses concerned with the Inverse Problem of the Equivalent Electric Dipoles with ECG Dynamics based on the Finite Element Method
Katsuyuki MURAKAMI, Masahiro NAKAGAWA,
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Abstract(in English) In this research, we shall estimate the electric dipole dynamics by means of an inverse estimation scheme with respect to the spatio-temporal patterns of the activity in the human heart dynamics. The Finite Element Method (FEM) is utilized to evaluate the potential field in vivo according to the measured surface potentials comparing with those which are generated from the predicted electric dipole. Therein the dipole location concerned with the surface potential as well as the measured one is to be successively computed by means of the Genetic Algorithm (GA). The experimental results imply that the senses of the estimated dipole location and rotation are found to be clockwise and counterclockwise, respectively. In addition on the basis of the Lyapunov analysis the coordinate of the dipole is found to result in chaotic behavior.
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Keyword(in English) ECG / Finite Element Method / Genetic Algorithm / ECG Inverse Problem / Lyapunov analysis
Paper # MBE2008-41
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Committee MBE
Conference Date 2008/9/18(1days)
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Registration To ME and Bio Cybernetics (MBE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Chaos and Fractal Analyses concerned with the Inverse Problem of the Equivalent Electric Dipoles with ECG Dynamics based on the Finite Element Method
Sub Title (in English)
Keyword(1) ECG
Keyword(2) Finite Element Method
Keyword(3) Genetic Algorithm
Keyword(4) ECG Inverse Problem
Keyword(5) Lyapunov analysis
1st Author's Name Katsuyuki MURAKAMI
1st Author's Affiliation Department of Electrical Engineering, Nagaoka University of Technology()
2nd Author's Name Masahiro NAKAGAWA
2nd Author's Affiliation Department of Electrical Engineering, Nagaoka University of Technology
Date 2008-09-25
Paper # MBE2008-41
Volume (vol) vol.108
Number (no) 219
Page pp.pp.-
#Pages 6
Date of Issue