Three-dimensional reconstruction in electrical impedance tomography

被引：3
|
作者：
Liu, W.P. [1 ]
Hua, P. [1 ]
Webster, J.G. [1 ]
机构：
[1] Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, United States
来源：
Clinical Physics and Physiological Measurement | 1988年 / 9卷 / SUPPL. A期
关键词：
Electric Measurements--Impedance - Image Processing--Reconstruction - Imaging Techniques--Computer Simulation - Mathematical Techniques--Algorithms;
D O I：
10.1088/0143-0815/9/4A/022
中图分类号：
学科分类号：
摘要：
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 neighboring 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 (volume elements) increased from 3 to 18.
引用
收藏
页码：131 / 135
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