Annals of Biomedical Engineering

, Volume 19, Issue 6, pp 669–678 | Cite as

A comparison of two boundary conditions used with the bidomain model of cardiac tissue

  • Bradley J. Roth


In the bidomain model, two alternative sets of boundary conditions at the interface between cardiac tissue and a saline bath have been used. It is shown that these boundary conditions are equivalent if the length constant of the tissue in the direction transverse to the fibers is much larger than the radius of the individual cardiac cells. If this is not the case, the relative merits of the two boundary conditions are closely related to the question of the applicability of a continuum model, such as the bidomain model, to describe a discrete multicellular tissue.


Bidomain model Cardiac tissue Boundary conditions 


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Copyright information

© Pergamon Press plc 1991

Authors and Affiliations

  • Bradley J. Roth
    • 1
  1. 1.Biomedical Engineering and Instrumentation ProgramNational Institutes of HealthBethesda

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