Electric field distribution around the deep brain stimulation electrode inferred from dielectric measurements

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Information about the spatial distribution of the electric field can be obtained by measuring the electrode impedance as a function of the diameter of the electrolyte surrounding the electrode. The non-uniform distribution of the electric field around the electrode is supported by the variation of the geometry factor (GF) with the electrical conductivity and geometry of the volume conductor. A comparison of the values obtained for the GF from experimental data, from model calculations and simulations help to understand the non-uniform distribution of the electric field. The GF calculated from four-electrode-measurements is significantly higher. GF should be used with caution in calculations of the deep brain stimulation (DBS) electrode impedance.
Original languageEnglish
Title of host publicationAdvanced Materials Forum VI
EditorsA. M. P. Pinto, A. S. Pouzada
Place of PublicationZurich
PublisherTrans Tech Publications Ltd
Pages26-31
Number of pages6
VolumePts 1-2
DOIs
Publication statusPublished - 2013
Event6th International Materials Symposium, Materiais 2011 - Guimaraes, Portugal
Duration: 18 Apr 201120 Apr 2011

Publication series

NameMaterials Science Forum
PublisherTrans Tech Publications Ltd
Volume730-732
ISSN (Print)0255-5476

Conference

Conference6th International Materials Symposium, Materiais 2011
CountryPortugal
CityGuimaraes
Period18/04/1120/04/11

Keywords

  • Deep brain stimulation
  • Dielectric measurements
  • Electric field distribution

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    Neagu, B., Neagu, E. R., Igreja, R., & Dias, C. J. M. M. (2013). Electric field distribution around the deep brain stimulation electrode inferred from dielectric measurements. In A. M. P. Pinto, & A. S. Pouzada (Eds.), Advanced Materials Forum VI (Vol. Pts 1-2, pp. 26-31). (Materials Science Forum; Vol. 730-732). Zurich: Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.730-732.26