Presentation 2007-10-19
Chaos Analyses of Fluctuation in Heartbeats and the Inverse Problem of the Equivalent Electric Dipoles with ECG Dynamics based on Finite Element Method
Katsuyuki MURAKAMI, Hideyuki USUI, Masahiro NAKAGAWA,
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Abstract(in English) In this research, we estimated the electric dipole dynamics by means of solving an inverse problem with respect to spatio-temporal patterns of activity in the human heart. Finite Element Method (FEM) is employed to find the body surface potential generated from the predicted dipole; the dipole location in which the computed potential fits the measured potential is calculated by using Genetic Algorithm (GA). The experimental results show that the estimated dipole location and rotation are found to move clockwise and rotate counterclockwise, respectively. In addition, by using the Lyapunov analysis the coordinate of the dipole was confirmed to have chaos characteristics.
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Keyword(in English) ECG / Finite Element Method / Genetic Algorithm / ECG Inverse Problem / Lyapunov analysis
Paper # CAS2007-61,NLP2007-89
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Committee CAS
Conference Date 2007/10/12(1days)
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Registration To Circuits and Systems (CAS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Chaos Analyses of Fluctuation in Heartbeats and the Inverse Problem of the Equivalent Electric Dipoles with ECG Dynamics based on 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 Hideyuki USUI
2nd Author's Affiliation eTRUST
3rd Author's Name Masahiro NAKAGAWA
3rd Author's Affiliation Department of Electrical Engineering, Nagaoka University of Technology
Date 2007-10-19
Paper # CAS2007-61,NLP2007-89
Volume (vol) vol.107
Number (no) 265
Page pp.pp.-
#Pages 6
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