Three-dimensional reconstruction in electrical impedance tomography
- 1 November 1988
- journal article
- Published by IOP Publishing in Clinical Physics and Physiological Measurement
- Vol. 9 (4A), 131-135
- https://doi.org/10.1088/0143-0815/9/4a/022
Abstract
The authors 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*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.Keywords
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