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  • The Effect of Conductivity Values on ST Segment Shift in Subendocardial Ischaemia

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    23594_1.pdf (704.5Kb)
    Author(s)
    Johnston, PR
    Kilpatrick, D
    Griffith University Author(s)
    Johnston, Peter R.
    Year published
    2003
    Metadata
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    Abstract
    The aim of this study was to investigate the effect of different conductivity values on epicardial surface potential distributions on a slab of cardiac tissue. The study was motivated by the large variation in published bidomain conductivity parameters available in the literature. Simulations presented are based on a previously published bidomain model and solution technique which includes fiber rotation. Three sets of conductivity parameters are considered and an alternative set of nondimensional parameters relating the tissue conductivities to blood conductivity is introduced. These nondimensional parameters are then used ...
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    The aim of this study was to investigate the effect of different conductivity values on epicardial surface potential distributions on a slab of cardiac tissue. The study was motivated by the large variation in published bidomain conductivity parameters available in the literature. Simulations presented are based on a previously published bidomain model and solution technique which includes fiber rotation. Three sets of conductivity parameters are considered and an alternative set of nondimensional parameters relating the tissue conductivities to blood conductivity is introduced. These nondimensional parameters are then used to study the relative effect of blood conductivity on the epicardial potential distributions. Each set of conductivity parameters gives rise to a distinct set of epicardial potential distributions, both in terms of morphology and magnitude. Unfortunately, the differences between the potential distributions cannot be explained by simple combinations of the conductivity values or the resulting dimensionless parameters.
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    Journal Title
    IEEE Transactions on Biomedical Engineering
    Volume
    50
    Issue
    2
    DOI
    https://doi.org/10.1109/TBME.2002.807660
    Copyright Statement
    © 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
    Subject
    Biomedical engineering
    Publication URI
    http://hdl.handle.net/10072/6295
    Collection
    • Journal articles

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