Title :
Rapid assessment of electrode characteristics for impedance imaging
Author :
Newell, J.C. ; Isaacson, D. ; Gisser, D.G.
Author_Institution :
Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
Techniques are presented for assessing the overall skin and electrode impedances relative to the impedance of the body interior during electrical impedance imaging. The resistivity distribution is modeled as the combination of a thin layer of high-impedance skin immediately below the electrodes and a larger, approximately homogeneous, field of lower resistivity representing the body interior. Experiments performed on the upper thigh of a human subject and on a resistivity phantom consisting of a saline bath are discussed
Keywords :
bioelectric phenomena; biomedical equipment; electric impedance; electrodes; patient diagnosis; body interior; electric impedance; electrode characteristics; high-impedance skin; human subject; impedance imaging; medical diagnostic imaging; resistivity distribution; resistivity phantom; saline bath; skin impedance; upper thigh; Argon; Biomedical electrodes; Biomedical engineering; Biomedical imaging; Conductivity; Current measurement; Impedance measurement; Skin; Surface impedance; Voltage;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95826
