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In vivo measurements of electrical conductivity of porcine organs at low frequency: New method of measurement
Author(s) -
Spottorno J.,
Multigner M.,
Rivero G.,
Álvarez L.,
de la Venta J.,
Santos M.
Publication year - 2012
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/bem.21718
Subject(s) - bioelectromagnetics , electrical resistivity and conductivity , conductivity , electromagnetic field , in vivo , biomedical engineering , acoustics , materials science , nuclear magnetic resonance , physics , medicine , biology , microbiology and biotechnology , quantum mechanics
Calculations of the induced currents created in the human body by external electromagnetic fields would be more accurate provided that more realistic experimental values of the electrical properties of the body were available. The purpose of this work is to experimentally obtain values for the conductivity of living organs in conditions close to the real situation. Two‐electrode in vivo measurements of the bioimpedance of some porcine organs have been performed. From these measurements and taking into account geometrical considerations, the electrical conductivity for the kidney, liver, heart, and spinal cord has been obtained and were found to be higher than the values reported in the literature. Furthermore, a new experimental procedure is proposed where the conductivity is determined from the values of the electrical potential and currents that are induced by an external electromagnetic field created by a coil placed close to the organ under study. Bioelectromagnetics 33:612–619, 2012. © 2012 Wiley Periodicals, Inc.