A study of composite electrode-tissue impedance

R L Robinson, J L Davidson, P Wright, CJD Pomfrett, H McCann

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


    Electrical impedance tomography has been used in the medical environment for many years. Recently it has been used for brain function imaging. This type of technology uses a large number of electrodes on the scalp, examples in the literature ranging from 8 to 64. In this paper, the composite impedance of the electrode in contact with tissue is investigated. An experimental method has been developed to enable the use of a commercial impedance analyzer in compliance with medical safety standards. The magnitude and long-term stability of the composite impedance of the electrode-tissue system is found to be greatly dependent on the type of electrodes used. © 2008 IEEE.
    Original languageEnglish
    Title of host publicationhost publication
    Number of pages4
    Publication statusPublished - 2008
    EventIXth International Conference on Electrical Impedance Tomography - Hanover, NH, USA
    Duration: 1 Jan 1824 → …


    ConferenceIXth International Conference on Electrical Impedance Tomography
    CityHanover, NH, USA
    Period1/01/24 → …
    Internet address


    • Electric contacts
    • Electric impedance
    • Electric impedance tomography
    • Electrodes
    • Electrophysiology
    • Neurology
    • Regulatory compliance


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