• DocumentCode
    1184590
  • Title

    An Application of Electrocardiographic Lead Theory to Impedance Plethysmography

  • Author

    Geselowitz, David B.

  • Author_Institution
    Department of Biomedical Engineering, Moore School of Electrical Engineering, Philadelphia, Pa., and the Department of Medicine, School of Medicine, University of Pennsylvania, Philadelphia, Pa. 19104.
  • Issue
    1
  • fYear
    1971
  • Firstpage
    38
  • Lastpage
    41
  • Abstract
    The change in mutual impedance ¿Z resulting from a change ¿g in the conductivity of a particular region of a volume conductor is shown to be given by ¿Z = - ¿g¿Lt¿·L¿ dv. L¿ and L¿ are the lead fields associated with the two ports used to measure ¿Z. The integration is over the region where the conductivity has changed. The superscript t indicates that the lead field is to be evaluated following the change in conductivity. An example involving a spherical conductor is provided.
  • Keywords
    Conductivity; Conductors; Current density; Equations; Impedance measurement; Insulation; Plethysmography; Resistors; Surface impedance; Voltage; Biomedical Engineering;
  • fLanguage
    English
  • Journal_Title
    Biomedical Engineering, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9294
  • Type

    jour

  • DOI
    10.1109/TBME.1971.4502787
  • Filename
    4502787
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1184590