Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation

Ville Rimpiläinen; Theodoros Samaras; Alexandra Koulouri

doi:10.1007/978-3-030-64610-3_54

Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation

Ville Rimpiläinen^*
, Theodoros Samaras
, Alexandra Koulouri

^*Corresponding author for this work

Computing Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

Abstract

Unknown electric conductivities of human tissues is a common issue in medical engineering. Electrical impedance tomography (EIT) is an imaging modality that can be used to determine these conductivities in vivo from boundary measurements. In this paper, we demonstrate that local conductivity values of different skull segments can be solved from EIT measurements with the help of a box constraint. Based on our numerical results, the accuracy of the results depended on the locations of the current carrying electrodes and the signal to noise ratio of the measurements. Particularly, the conductivity values of the skull segments that located below the current carrying electrodes were reconstructed more accurately.

Original language	English
Title of host publication	8th European Medical and Biological Engineering Conference - Proceedings of the EMBEC 2020
Editors	Tomaz Jarm, Aleksandra Cvetkoska, Samo Mahnič-Kalamiza, Damijan Miklavcic
Publisher	Springer
Pages	478-484
Number of pages	7
ISBN (Print)	9783030646097
DOIs	https://doi.org/10.1007/978-3-030-64610-3_54
Publication status	Published - 2021
Publication type	A4 Article in conference proceedings
Event	European Medical and Biological Engineering Conference - Portorož, Slovenia Duration: 29 Nov 2020 → 3 Dec 2020

Publication series

Name	IFMBE Proceedings
Volume	80
ISSN (Print)	1680-0737
ISSN (Electronic)	1433-9277

Conference

Conference	European Medical and Biological Engineering Conference
Country/Territory	Slovenia
City	Portorož
Period	29/11/20 → 3/12/20

Funding

Acknowledgements. The authors wish to thank Dr. Nathan D. Smith for his insight on the dual function. This project has received funding from the ATTRACT project funded by the EC under Grant Agreement 777222 and from the Academy of Finland post-doctoral program (project no. 316542).

Keywords

Bioimpedance
Box constraint
Electrical impedance tomography
Interior point method
Inverse problem
Tissue conductivity

Publication forum classification

Publication forum level 1

ASJC Scopus subject areas

Bioengineering
Biomedical Engineering

Access to Document

10.1007/978-3-030-64610-3_54

Cite this

Rimpiläinen, V., Samaras, T., & Koulouri, A. (2021). Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation. In T. Jarm, A. Cvetkoska, S. Mahnič-Kalamiza, & D. Miklavcic (Eds.), 8th European Medical and Biological Engineering Conference - Proceedings of the EMBEC 2020 (pp. 478-484). (IFMBE Proceedings; Vol. 80). Springer. https://doi.org/10.1007/978-3-030-64610-3_54

Rimpiläinen, Ville ; Samaras, Theodoros ; Koulouri, Alexandra. / Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation. 8th European Medical and Biological Engineering Conference - Proceedings of the EMBEC 2020. editor / Tomaz Jarm ; Aleksandra Cvetkoska ; Samo Mahnič-Kalamiza ; Damijan Miklavcic. Springer, 2021. pp. 478-484 (IFMBE Proceedings).

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title = "Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation",

abstract = "Unknown electric conductivities of human tissues is a common issue in medical engineering. Electrical impedance tomography (EIT) is an imaging modality that can be used to determine these conductivities in vivo from boundary measurements. In this paper, we demonstrate that local conductivity values of different skull segments can be solved from EIT measurements with the help of a box constraint. Based on our numerical results, the accuracy of the results depended on the locations of the current carrying electrodes and the signal to noise ratio of the measurements. Particularly, the conductivity values of the skull segments that located below the current carrying electrodes were reconstructed more accurately.",

keywords = "Bioimpedance, Box constraint, Electrical impedance tomography, Interior point method, Inverse problem, Tissue conductivity",

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note = "Funding Information: Acknowledgements. The authors wish to thank Dr. Nathan D. Smith for his insight on the dual function. This project has received funding from the ATTRACT project funded by the EC under Grant Agreement 777222 and from the Academy of Finland post-doctoral program (project no. 316542). Publisher Copyright: {\textcopyright} 2021, Springer Nature Switzerland AG. Copyright: Copyright 2020 Elsevier B.V., All rights reserved. jufoid=58152; European Medical and Biological Engineering Conference ; Conference date: 29-11-2020 Through 03-12-2020",

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Rimpiläinen, V, Samaras, T & Koulouri, A 2021, Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation. in T Jarm, A Cvetkoska, S Mahnič-Kalamiza & D Miklavcic (eds), 8th European Medical and Biological Engineering Conference - Proceedings of the EMBEC 2020. IFMBE Proceedings, vol. 80, Springer, pp. 478-484, European Medical and Biological Engineering Conference, Portorož, Slovenia, 29/11/20. https://doi.org/10.1007/978-3-030-64610-3_54

Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation. / Rimpiläinen, Ville; Samaras, Theodoros; Koulouri, Alexandra.
8th European Medical and Biological Engineering Conference - Proceedings of the EMBEC 2020. ed. / Tomaz Jarm; Aleksandra Cvetkoska; Samo Mahnič-Kalamiza; Damijan Miklavcic. Springer, 2021. p. 478-484 (IFMBE Proceedings; Vol. 80).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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AU - Rimpiläinen, Ville

AU - Samaras, Theodoros

AU - Koulouri, Alexandra

N1 - Funding Information: Acknowledgements. The authors wish to thank Dr. Nathan D. Smith for his insight on the dual function. This project has received funding from the ATTRACT project funded by the EC under Grant Agreement 777222 and from the Academy of Finland post-doctoral program (project no. 316542). Publisher Copyright: © 2021, Springer Nature Switzerland AG. Copyright: Copyright 2020 Elsevier B.V., All rights reserved. jufoid=58152

PY - 2021

Y1 - 2021

N2 - Unknown electric conductivities of human tissues is a common issue in medical engineering. Electrical impedance tomography (EIT) is an imaging modality that can be used to determine these conductivities in vivo from boundary measurements. In this paper, we demonstrate that local conductivity values of different skull segments can be solved from EIT measurements with the help of a box constraint. Based on our numerical results, the accuracy of the results depended on the locations of the current carrying electrodes and the signal to noise ratio of the measurements. Particularly, the conductivity values of the skull segments that located below the current carrying electrodes were reconstructed more accurately.

AB - Unknown electric conductivities of human tissues is a common issue in medical engineering. Electrical impedance tomography (EIT) is an imaging modality that can be used to determine these conductivities in vivo from boundary measurements. In this paper, we demonstrate that local conductivity values of different skull segments can be solved from EIT measurements with the help of a box constraint. Based on our numerical results, the accuracy of the results depended on the locations of the current carrying electrodes and the signal to noise ratio of the measurements. Particularly, the conductivity values of the skull segments that located below the current carrying electrodes were reconstructed more accurately.

KW - Bioimpedance

KW - Box constraint

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KW - Interior point method

KW - Inverse problem

KW - Tissue conductivity

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DO - 10.1007/978-3-030-64610-3_54

M3 - Conference contribution

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SN - 9783030646097

T3 - IFMBE Proceedings

SP - 478

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BT - 8th European Medical and Biological Engineering Conference - Proceedings of the EMBEC 2020

A2 - Jarm, Tomaz

A2 - Cvetkoska, Aleksandra

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A2 - Miklavcic, Damijan

PB - Springer

T2 - European Medical and Biological Engineering Conference

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ER -

Rimpiläinen V, Samaras T, Koulouri A. Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation. In Jarm T, Cvetkoska A, Mahnič-Kalamiza S, Miklavcic D, editors, 8th European Medical and Biological Engineering Conference - Proceedings of the EMBEC 2020. Springer. 2021. p. 478-484. (IFMBE Proceedings). Epub 2020. doi: 10.1007/978-3-030-64610-3_54

Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation

Abstract

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Keywords

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