NDLI: Analysis of the electrical impedance tomography algorithm based on finite element method and Tikhonov regularization

Content Provider	IEEE Xplore Digital Library
Author	Lin Lu Lili Liu Chun Hu
Copyright Year	2014
Description	Author affiliation: Sch. of Biomed. Eng., Shanghai Jiao Tong Univ., Shanghai, China (Lin Lu; Lili Liu; Chun Hu)
Abstract	Electrical impedance tomography is able to estimate the electrical properties at the interior of a biological tissue from voltage and current measurement data on its boundary. It can be used to achieve functional imaging of tissues. Electrical impedance tomography is composed of a forward problem and an inverse problem. In this paper, a two-dimensional model of electrical impedance tomography is built first. Then, a finite element subdivision of target area is realized to establish finite element equations of forward problem. In consideration of the uncertainty of inverse problem, a Tikhonov regularization method is performed and Gauss-Newton iteration method is adopted to get stable solution. Several simulation experiments are carried out to evaluate the performance of the image reconstruction algorithm based on finite element method and Tikhonov regularization. Results indicate that the reconstructed images already have the ability to show the impedance distribution.
Starting Page	36
Ending Page	42
File Size	4500155
Page Count	7
File Format	PDF
ISBN	9781479942121
ISSN	21585695
e-ISBN	9781479942114
DOI	10.1109/ICWAPR.2014.6961287
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Inverse problems Forward problem Electrical impedance tomography (EIT) Tomography Finite element method (FEM) Finite element analysis Impedance Mathematical model Tikhonov regularization Image reconstruction Inverse problem
Content Type	Text
Resource Type	Article

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