EURASIP Journal on Advances in Signal Processing
Volume 2007 (2007), Article ID 043407, 14 pages
doi:10.1155/2007/43407
Research Article
Multichannel ECG and Noise Modeling: Application to Maternal and Fetal ECG Signals
1Biomedical Signal and Image Processing Laboratory (BiSIPL), School of Electrical Engineering, Sharif University of Technology, P.O. Box 11365-9363, Tehran
, Iran
2Laboratoire des Images et des Signaux (LIS), CNRS - UMR 5083, INPG, UJF, Grenoble Cedex 38031, France
3Laboratory for Computational Physiology, Harvard-MIT Division of Health Sciences and Technology (HST), Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Received 1 May 2006; Revised 1 November 2006; Accepted 2 November 2006
Academic Editor: William Allan Sandham
Copyright © 2007 Reza Sameni et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
A three-dimensional dynamic model of the electrical activity of the heart is presented. The model is based on the single dipole model of the heart and is later related to the body surface potentials through a linear model which accounts for the temporal movements and rotations of the cardiac dipole, together with a realistic ECG noise model. The proposed model is also generalized to maternal and fetal ECG mixtures recorded from the abdomen of pregnant women in single and multiple pregnancies. The applicability of the model for the evaluation of signal processing algorithms is illustrated using independent component analysis. Considering the difficulties and limitations of recording long-term ECG data, especially from pregnant women, the model described in this paper may serve as an effective means of simulation and analysis of a wide range of ECGs, including adults and fetuses.