The volume conductor may act as a temporal filter on the ECG and EEG

J.G. Stinstra; M.J. Peters

doi:10.1007/BF02518873

The volume conductor may act as a temporal filter on the ECG and EEG

J.G. Stinstra, M.J. Peters

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Abstract

The influence of the volume conductor on the EEG, MEG, fetal ECG and fetal MCG is studied by means of simulations. The assumption that the Maxwell equations can be used in a quasi-static approximation is reconsidered and the fact that the conductivity of human tissue is frequency dependent is taken into account. It is found that displacement currents have a substantial effect on the fetal ECG and to a lesser degree on the fetal MCG. Moreover, the frequency dependence of the conductivity of the tissues within the head may have a considerable effect on the EEG.

Original language	English
Pages (from-to)	711-716
Number of pages	6
Journal	Medical & biological engineering & computing
Volume	36
Issue number	6
DOIs	https://doi.org/10.1007/BF02518873
Publication status	Published - Nov 1998

Keywords

Volume conductor - Electroencephalography - Magnetoencephalography - Fetal electrocardiography - Fetal magnetocardiography
IR-59748

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10.1007/BF02518873

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abstract = "The influence of the volume conductor on the EEG, MEG, fetal ECG and fetal MCG is studied by means of simulations. The assumption that the Maxwell equations can be used in a quasi-static approximation is reconsidered and the fact that the conductivity of human tissue is frequency dependent is taken into account. It is found that displacement currents have a substantial effect on the fetal ECG and to a lesser degree on the fetal MCG. Moreover, the frequency dependence of the conductivity of the tissues within the head may have a considerable effect on the EEG.",

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AB - The influence of the volume conductor on the EEG, MEG, fetal ECG and fetal MCG is studied by means of simulations. The assumption that the Maxwell equations can be used in a quasi-static approximation is reconsidered and the fact that the conductivity of human tissue is frequency dependent is taken into account. It is found that displacement currents have a substantial effect on the fetal ECG and to a lesser degree on the fetal MCG. Moreover, the frequency dependence of the conductivity of the tissues within the head may have a considerable effect on the EEG.

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The volume conductor may act as a temporal filter on the ECG and EEG

Abstract

Keywords

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