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  Characterizing Electrical Interactions of Tissue with Time-Varying Gradient Fields: Simulations and Measurements

Mandija, S., van Lier, A., Thielscher, A., Antunes, A., Neggers, S., Luijten, P., et al. (2014). Characterizing Electrical Interactions of Tissue with Time-Varying Gradient Fields: Simulations and Measurements. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2014, Milano, Italy.

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Mandija, S, Author
van Lier, ALHMW, Author
Thielscher, Axel, Author              
Antunes, A1, 2, Author              
Neggers, SFW, Author
Luijten, PR, Author
van den Berg, CAT, Author
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: At low frequency (Hz-kHz) the human body is electrically very heterogeneous. Adjacent biological structures constitute strong electrical impedance variations that affect current flow. In this work, we studied the effect of electrical impedance variations on the magnetic field distortions by inducing eddy currents caused by the readout gradient. We performed simulations and measurements on saline phantoms. We saw that, by measuring the induced Bz field, it is possible to derive information about the electric conduction and composition of media, e.g. interfaces and their orientation.

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 Dates: 2014-05
 Publication Status: Published in print
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 Identifiers: URI: http://www.ismrm.org/14/program_files/PP08.htm
BibTex Citekey: MandijavTANLv2014
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Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Place of Event: Milano, Italy
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Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 0639 Start / End Page: - Identifier: -