Applicability of an effective conductivity approach in modeling thoracic impedance changes

Magdalena Madej; Bart Truyen; Cristina Boca; Jerzy Wtorek

doi:10.1088/1742-6596/434/1/012010

Applicability of an effective conductivity approach in modeling thoracic impedance changes

Abstract

This paper describes numerical simulations of the influence of conductivity changes inside a volume conductor on impedance changes measured on its surface. A simple model based on the finite element method has been developed to estimate an applicability of the effective conductivity theory in human chest modeling. The model consisted of a cylinder with two concentric spheres inside. Simulations were performed for two cases: first the geometry was changing and material properties were constant within each subdomain, next, the geometry was constant but conductivity values were changing for each phase of cardiac cycle. In the considered range of geometry changes dependence between impedance changes calculated for two models was linear. Performed simulations showed that effective conductivity approach can be utilized when studying dynamic processes involved by volume changes of internal organs.

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Authors (4)

Magdalena Madej mgr inż.
Bart Truyen
- Vrije Universiteit Brussel Department of Electronics and Informatics
Cristina Boca
- Vrije Universiteit Brussel Department of Electronics and Informatics
Jerzy Wtorek prof. dr hab. inż.

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DOI:: Digital Object Identifier (open in new tab) 10.1088/1742-6596/434/1/012010
License: Copyright (2013 IOP Publishing Ltd)

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Category:: Articles
Type:: artykuły w czasopismach
Published in:: Journal of Physics : Conference Series no. 434,
ISSN: 1742-6588
Language:: English
Publication year:: 2013
Bibliographic description:: Madej M., Truyen B., Boca C., Wtorek J.: Applicability of an effective conductivity approach in modeling thoracic impedance changes// Journal of Physics : Conference Series -Vol. 434, (2013), s.012010-
DOI:: Digital Object Identifier (open in new tab) 10.1088/1742-6596/434/1/012010
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