@article{332bbd103853454ca0cc0f0db09e2824,
title = "Dependence of apparent resistance of four-electrode probes on insertion depth",
abstract = "The apparent resistance of a finite-thickness layer measured with a four-electrode plunge probe depends on the electrode insertion depth, electrode spacing, and layer thickness, as well as the resistivity ratio of an underlying layer. A physical model consisting of air, a saline solution layer, and an agar layer simulates the real situation of resistivity measurement. The saline layer represents the finite-thickness layer whose resistivity is to be measured by a plunge electrode probe, and the agar layer represents an underlying perturbing layer. A micropositioner controls the insertion depth of the four electrodes into the saline solution. With the apparent resistance measured on a semi-infinite-thickness layer of saline solution as standard, measurement results show decreasing apparent resistance and increasing error with increasing electrode insertion depth. This information is important for correct measurement of myocardial resistivity in vivo and in vitro.",
keywords = "Apparent resistance, Electrode spacing, Four-terminal impedance measurement, In-chamber blood, Insertion depth, Multiple-layer model, Myocardial resistivity, Myocardial thickness, Plunge probe, Probe constant, Resistivity ratio, Saline calibration",
author = "Tsai, {Jang Zern} and Hong Cao and Supan Tungjitkusolmun and Woo, {Eung Je} and Vorperian, {Vicken R.} and Webster, {John G.}",
note = "Funding Information: Manuscript received July 9, 1998; revised June 24, 1999. This work was supported by the National Institutes of Health (NIH) under Grant HL56143. Asterisk indicates corresponding author. J.-Z. Tsai, H. Cao, and S. Tungjitkusolmun, are with the Department of Electrical and Computer Engineering, University of Wisconsin, Madison, WI 53706 USA. *J. G. Webster is with the Department of Biomedical Engineering, University of Wisconsin, 1415 Engineering Drive, Madison, WI 53706 USA (e-mail: webster@engr.wisc.edu). E. J. Woo is with the School of Electronics and Information, Kyung Hee University, 1 Sochen-ni, Kihung-eop, Yongin, Kyongki-do, Korea 449-701. V. R. Vorperian is with the Department of Medicine, University of Wisconsin, Madison, WI 53792 USA. Publisher Item Identifier S 0018-9294(00)00249-4.",
year = "2000",
doi = "10.1109/10.817618",
language = "???core.languages.en_GB???",
volume = "47",
pages = "41--48",
journal = "IEEE Transactions on Biomedical Engineering",
issn = "0018-9294",
number = "1",
}