Published in Proceedings of the 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Amsterdam, Volume 5, October 31, 1996, pages 1929-1931.
NOTE: At the time of publication, the author Robert Szlavik was not yet affiliated with Cal Poly.
The definitive version is available at https://doi.org/10.1109/IEMBS.1996.646325.
The authors present an alternative technique for obtaining tissue conductivity as a function of frequency. Pulsed transient tissue impedance measurement differs significantly from other commonly used swept frequency techniques in that the conductivity of a tissue sample can be obtained from a voltage transient response to a current pulse. By obtaining the conductivity across a band of frequencies from a transient measurement, the necessity for direct conductivity measurements at each frequency point is eliminated. Calibration and verification of the technique was carried out by measuring the impedance magnitude and phase of simple RC circuit combinations. The authors present conductivity measurements taken from in vitro poultry skeletal muscle tissue specimens. Measurements from fresh animal tissues are currently being obtained.
Biomedical Engineering and Bioengineering
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