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2022 | OriginalPaper | Buchkapitel

Modelling of Inverse Problem Applied to Image Reconstruction in Tomography Systems

verfasst von : J. G. B. Wolff, G. Gueler Dalvi, P. Bertemes-Filho

Erschienen in: XXVII Brazilian Congress on Biomedical Engineering

Verlag: Springer International Publishing

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Abstract

Numerical models were developed to analyze the Eddy currents distribution in conductive volumes excited by time-varying magnetic fields. The sensitivity matrix was obtained for a defined topology of field generating sources and field measurement sensors. From the secondary field readings in a generator/sensor system, images of the conductivity distribution inside the material were obtained. The mathematical methods used to obtain numerical solutions for the inverse problem in magnetic induction tomography are presented. The result showed slight fluctuations in the object’s conductivity. This is because the high frequency components were eliminated in the image reconstruction program developed.

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Literatur
1.
Zurück zum Zitat Gençer NG, Ider YZ, Williamsom SJ (1999) Electrical conductivity imaging via contactless measurement. IEEE Trans Med Imaging 8(7):617–627CrossRef Gençer NG, Ider YZ, Williamsom SJ (1999) Electrical conductivity imaging via contactless measurement. IEEE Trans Med Imaging 8(7):617–627CrossRef
2.
Zurück zum Zitat Surowiec AJ, Stuchly SS, Barr JR, Swarup A (1998) Dielectric properties of breast carcinoma and the surrounding tissues. IEEE Trans Biomed Eng 35(4):257–263CrossRef Surowiec AJ, Stuchly SS, Barr JR, Swarup A (1998) Dielectric properties of breast carcinoma and the surrounding tissues. IEEE Trans Biomed Eng 35(4):257–263CrossRef
3.
Zurück zum Zitat Guardo R, Charron G, Goussard Y, Savard P (1997) Contactless measurement of thoracic conductivity changes by magnetic induction. In: Proceedings of the 19th annual international conference of the IEEE engineering in medicine and biology society. ‘Magnificent Milestones and Emerging Opportunities in Medical Engineering’ (Cat. No.97CH36136) 30 Oct–2 Nov 1997 Guardo R, Charron G, Goussard Y, Savard P (1997) Contactless measurement of thoracic conductivity changes by magnetic induction. In: Proceedings of the 19th annual international conference of the IEEE engineering in medicine and biology society. ‘Magnificent Milestones and Emerging Opportunities in Medical Engineering’ (Cat. No.97CH36136) 30 Oct–2 Nov 1997
4.
Zurück zum Zitat Xu Z, He W, He C, Zhang Z, Luo H (2019) Eddy current simulation for magnetic induction tomography forward problem in biological tissues. State Key Laboratory of Power Transmission Equipment and System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing, People’s Republic of China. Xu Z, He W, He C, Zhang Z, Luo H (2019) Eddy current simulation for magnetic induction tomography forward problem in biological tissues. State Key Laboratory of Power Transmission Equipment and System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing, People’s Republic of China.
5.
Zurück zum Zitat Zolgharni M, Ledger PD, Armitage DW, Holder DS, Griffiths H (2009) Imaging cerebral haemorrhage with magnetic induction tomography: numerical modelling. Physio Meas 30(6):S187–S200CrossRef Zolgharni M, Ledger PD, Armitage DW, Holder DS, Griffiths H (2009) Imaging cerebral haemorrhage with magnetic induction tomography: numerical modelling. Physio Meas 30(6):S187–S200CrossRef
6.
Zurück zum Zitat Scharfetter H, Lackner HK, Rosell J (2001) Magnetic induction tomography: hardware for multi-frequency measurements in biological tissues. Physiol Meas 22:131–146CrossRef Scharfetter H, Lackner HK, Rosell J (2001) Magnetic induction tomography: hardware for multi-frequency measurements in biological tissues. Physiol Meas 22:131–146CrossRef
7.
Zurück zum Zitat Wolff JGB, Ramos A (2010) Cálculo de campo em um sistema de tomografia de indução magnética. In: XXII CBEB 2010. Tiradentes Wolff JGB, Ramos A (2010) Cálculo de campo em um sistema de tomografia de indução magnética. In: XXII CBEB 2010. Tiradentes
8.
Zurück zum Zitat Wolff JGB (2011) Análise computacional da distribuição de campos e correntes e reconstrução de imagem em um sistema de tomografia de indução magnética. Orientador: Airton Ramos, Joinville. 113 f.; il; 30 cm Wolff JGB (2011) Análise computacional da distribuição de campos e correntes e reconstrução de imagem em um sistema de tomografia de indução magnética. Orientador: Airton Ramos, Joinville. 113 f.; il; 30 cm
Metadaten
Titel
Modelling of Inverse Problem Applied to Image Reconstruction in Tomography Systems
verfasst von
J. G. B. Wolff
G. Gueler Dalvi
P. Bertemes-Filho
Copyright-Jahr
2022
DOI
https://doi.org/10.1007/978-3-030-70601-2_230

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