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Verification of extended sources reconstruction techniques using a torso phantom

Hartmut Brauer (Ilmenau University of Technology, Ilmenau, Germany)
Marek Ziolkowski (Technical University of Szczecin, Szczecin, Poland)
Uwe Tenner (Biomagnetic Center, Jena, Germany,)
Jens Haueisen (Biomagnetic Center, Jena, Germany,)
Hannes Nowak (Jena Sensoric GmbH, Jena, Germany)

Abstract

Applies four different minimum norm estimations with common regularization techniques, often used in biomedical applications to the solution of the biomagnetic inverse field problem. Magnetic field data measured with a multi‐channel biomagnetometer sensor system in a magnetically shielded room were used to reconstruct the current density distributions generated by an extended current source which was placed inside a human torso phantom. No one of the tested methods is able to estimate the extension of the source. To improve the results as much as possible a priori information of the source space should be taken into account.

Keywords

Citation

Brauer, H., Ziolkowski, M., Tenner, U., Haueisen, J. and Nowak, H. (2001), "Verification of extended sources reconstruction techniques using a torso phantom", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 20 No. 2, pp. 595-606. https://doi.org/10.1108/03321640110383933

Publisher

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MCB UP Ltd

Copyright © 2001, MCB UP Limited

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