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PubMed · 3240641

Three-dimensional reconstruction in electrical impedance tomography.

W P Liu·P Hua·J G Webster
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Abstract

We have developed a three-dimensional, computer-simulated, electrical impedance tomographic imaging system using the four-electrode measurement technique. The reconstruction process finds the numerical solution of Laplace's equation by using the finite element method and the Newton-Raphson algorithm. A new diagonal electrodes measurement method provides lower error than the usual neighbouring electrodes measurement method. For a three-layer, 4 x 4 model, the number of iterations increased from 3 to 16 as the number of randomly placed, high-resistivity voxels increased from 3 to 18.

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Electric ConductivityElectrodesHumansMathematicsModels, AnatomicModels, TheoreticalTomographyJournal ArticleResearch Support, U.S. Gov't, Non-P.H.S.

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W P Liu, P Hua, J G Webster. 1988. Three-dimensional reconstruction in electrical impedance tomography.. https://doi.org/10.1088/0143-0815%2F9%2F4a%2F022

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