Algorithm for solving the Electrical Impedance Tomography forward problem by the modification method
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2011, Vol 0, Issue 47
Abstract
Algorithm for solving the Electrical Impedance Tomography forward problem by the modification method with “conductivity zones”, which are generated using square finite elements, is proposed. The number of zones is equal to the number of electrodes on the phantom outline (for example, 14 with 16 electrodes, two of which are intended for connection of the independence current source). The proposed algorithm economy, that is a consequence of internal zones nodes reduction, is shown The examples of continuos phantom discretization to conductivity zones, that consist of square finite elements are given. The examples of equal voltage lines distribution inside the phantom with different (in size, surface conductivity) inhomogeneities and with different number of those inhomogeneities are shown. These examples illustrate the possibilities of algorithm for solving the Electrical Impedance Tomography forward problem and also the inexpediency of back projection method using (in general case) for solving the inverse problem.
Authors and Affiliations
I. Sushko
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