Predicted EIT current densities in the brain using a 3D anatomically realistic model of the head

Hugh Mccann, John L. Davidson, C. J D Pomfrett, H. McCann

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

    Abstract

    Current density distributions have been calculated using a high resolution model of the human head on application of low direct currents. The 3D internal electric fields and current densities have been calculated for electrode pair combinations for dc current levels from 1 to 10 mA. For current levels at 1 mA, the results show maximum electric fields of approximately 1.5 V/m and current densities less than 500 mA/m2 for the outermost regions of the brain. To our knowledge, this is the first study to describe current distributions in the brain using a 3D anatomically realistic model of the head in a manner which is pertinent to Electrical Impedance Tomography (EIT). © Springer-Verlag 2007.
    Original languageEnglish
    Title of host publicationIFMBE Proceedings|IFMBE Proc.
    Pages376-379
    Number of pages3
    Volume17
    Publication statusPublished - 2007
    Event13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007, ICEBI 2007 - Graz
    Duration: 1 Jul 2007 → …

    Conference

    Conference13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography 2007, ICEBI 2007
    CityGraz
    Period1/07/07 → …

    Keywords

    • Current density
    • EIT
    • Head modelling

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