Med Biol Eng Comput. 1991 Nov;29(6):580-4.

Examination of the choice of models for computing the extracellular potential of a single fibre in a restricted volume conductor.

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National Science Foundation, Engineering Research Center, Durham, North Carolina.

Abstract

The paper compares the rigorous and the conventional approximate line source solution of Laplace's equation used to evaluate the potential of a single cylindrical fibre. Particular attention is given to the solutions for a radially restricted circular cylindrical volume conductor. The effect of the extent of the volume conductor b on the difference between the potentials evaluated according to the different models is examined. For values of b larger than 10 times the fibre radius, the relative difference is less than 1 per cent and the values of b around 2 times the fibre radii, the error reaches as much as 17 per cent.

PMID:: 1813752; [PubMed - indexed for MEDLINE]

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HL-40092/HL/NHLBI NIH HHS/United States

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