The passive DC conductivity of human tissues described by cells in solution

Peters, Maria J. and Hendriks, Maikel and Stinstra, Jeroen G. (2001) The passive DC conductivity of human tissues described by cells in solution. Bioelectrochemistry, 53 (2). pp. 155-160. ISSN 1567-5394

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Abstract:	The electrical conductivity of human tissue at low frequencies is discussed when a uniform electric field is applied to some tissue containing many cells. Human tissue is described as a suspension of particles in a conducting solution. Relations are derived for the apparent conductivity of a cell surrounded by a membrane. These relations can be used to estimate the accuracy of a model that considers the cell as a non-conducting particle. Usually, a tissue is composed of several types of particles. A relationship that expresses the effective conductivity of a suspension of one type of ellipsoidal particles could be found in the literature. The orientation of the particles could be uniform or they could be randomly distributed. For non-conducting particles, this expression is known as Archie's law. The expression is extended such that also the effective conductivity of a suspension of various types of particles can be calculated. The result is evaluated for the cortex of the brain using experimental data given in the literature.
Item Type:	Article
Copyright:	© 2001 Elsevier Science
Research Group:	Low Temperatures - Biomagnetism (LT)
Link to this item:	http://purl.utwente.nl/publications/59749
Official URL:	http://dx.doi.org/10.1016/S0302-4598(00)00117-3
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