DocumentCode :
241221
Title :
Exploiting Proper Orthogonal Decomposition for the solution of forward and inverse ECG and EEG related biomedical problems
Author :
Aitidis, Ilias ; Kyriacou, G. ; Sahalos, J.
Author_Institution :
Democritus Univ. of Thrace, Xanthi, Greece
fYear :
2014
fDate :
6-11 April 2014
Firstpage :
526
Lastpage :
529
Abstract :
A method for the equivalent dipole localization from EEG/ECG measured data is proposed herein exploiting the combined advantages of Proper Orthogonal Decomposition (POD) and Finite Element Method (FEM). The current effort is concentrated on solving a fine discretized forward eigenproblem once and applying POD to reduce the problem dimension. The equivalent dipole localization is in turn formulated by setting up a cost function in its least squares means. The involved calculated data sets as well as the sensitivity matrix are evaluated herein exploiting a POD eigenfunction expansion. Explicitly, for each forward problem solution the voltage generated by a test source is calculated as an eigenfunction expansion. The proposed method is expected to offer a computationally efficient forward and overall inverse problem solution, while our ambitious is to achieve real time brain dipole localization.
Keywords :
bioelectric potentials; eigenvalues and eigenfunctions; electrocardiography; electroencephalography; finite element analysis; inverse problems; least mean squares methods; POD eigenfunction expansion; biomedical problems; equivalent dipole localization; finite element method; forward ECG solution; forward EEG solution; inverse ECG solution; inverse EEG solution; least squares means; proper orthogonal decomposition; real time brain dipole localization; sensitivity matrix evaluation; Brain modeling; Eigenvalues and eigenfunctions; Electric potential; Electroencephalography; Finite element analysis; Heart; Inverse problems; FEM; Inverse ECG/EEG; Proper Orthogonal Decomposition; eigenfunction expansion; source localization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
Type :
conf
DOI :
10.1109/EuCAP.2014.6901810
Filename :
6901810
Link To Document :
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