A Post-Processing Method for Three-Dimensional Electrical Impedance Tomography

Abstract Electrical impedance tomography is a modern biomedical imaging method. Its goal is to image the electrical properties of human tissues. This approach is safe for the patient’s health, is non-invasive and has no known hazards. However, the approach suffers from low accuracy. Linear inverse s...

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Autores principales:	Sébastien Martin, Charles T. M. Choi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9ce9373373d84988a91dbc30befdcc46
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spelling	oai:doaj.org-article:9ce9373373d84988a91dbc30befdcc462021-12-02T11:40:14ZA Post-Processing Method for Three-Dimensional Electrical Impedance Tomography10.1038/s41598-017-07727-22045-2322https://doaj.org/article/9ce9373373d84988a91dbc30befdcc462017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07727-2https://doaj.org/toc/2045-2322Abstract Electrical impedance tomography is a modern biomedical imaging method. Its goal is to image the electrical properties of human tissues. This approach is safe for the patient’s health, is non-invasive and has no known hazards. However, the approach suffers from low accuracy. Linear inverse solvers are commonly used in medical applications, as they are strongly robust to noise. However, linear methods can give only an approximation of the solution that corresponds to a linear perturbation from an initial estimate. This paper proposes a novel reconstruction process. After applying a linear solver, the conductivity distribution is post-processed with a nonlinear algorithm, with the aim of reproducing the abrupt change in conductivity at the boundaries between tissues or organs. The results are used to compare the proposed method with three other widely used methods. The proposed method offers higher quality images and a higher robustness to noise, and significantly reduces the error associated with image reconstruction.Sébastien MartinCharles T. M. ChoiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sébastien Martin Charles T. M. Choi A Post-Processing Method for Three-Dimensional Electrical Impedance Tomography
description	Abstract Electrical impedance tomography is a modern biomedical imaging method. Its goal is to image the electrical properties of human tissues. This approach is safe for the patient’s health, is non-invasive and has no known hazards. However, the approach suffers from low accuracy. Linear inverse solvers are commonly used in medical applications, as they are strongly robust to noise. However, linear methods can give only an approximation of the solution that corresponds to a linear perturbation from an initial estimate. This paper proposes a novel reconstruction process. After applying a linear solver, the conductivity distribution is post-processed with a nonlinear algorithm, with the aim of reproducing the abrupt change in conductivity at the boundaries between tissues or organs. The results are used to compare the proposed method with three other widely used methods. The proposed method offers higher quality images and a higher robustness to noise, and significantly reduces the error associated with image reconstruction.
format	article
author	Sébastien Martin Charles T. M. Choi
author_facet	Sébastien Martin Charles T. M. Choi
author_sort	Sébastien Martin
title	A Post-Processing Method for Three-Dimensional Electrical Impedance Tomography
title_short	A Post-Processing Method for Three-Dimensional Electrical Impedance Tomography
title_full	A Post-Processing Method for Three-Dimensional Electrical Impedance Tomography
title_fullStr	A Post-Processing Method for Three-Dimensional Electrical Impedance Tomography
title_full_unstemmed	A Post-Processing Method for Three-Dimensional Electrical Impedance Tomography
title_sort	post-processing method for three-dimensional electrical impedance tomography
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9ce9373373d84988a91dbc30befdcc46
work_keys_str_mv	AT sebastienmartin apostprocessingmethodforthreedimensionalelectricalimpedancetomography AT charlestmchoi apostprocessingmethodforthreedimensionalelectricalimpedancetomography AT sebastienmartin postprocessingmethodforthreedimensionalelectricalimpedancetomography AT charlestmchoi postprocessingmethodforthreedimensionalelectricalimpedancetomography
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A Post-Processing Method for Three-Dimensional Electrical Impedance Tomography

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