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Biomedical Engineering / Biomedizinische Technik

Editor-in-Chief: Dössel, Olaf

Editorial Board Member: Augat, Peter / Haueisen, Jens / Jockenhoevel, Stefan / Knaup-Gregori, Petra / Lenarz, Thomas / Leonhardt, Steffen / Plank, Gernot / Radermacher, Klaus M. / Schkommodau, Erik / Stieglitz, Thomas / Boenick, Ulrich / Jaramaz, Branislav / Kraft, Marc / Lenthe, Harry / Lo, Benny / Mainardi, Luca / Micera, Silvestro / Penzel, Thomas / Robitzki, Andrea A. / Schaeffter, Tobias / Snedeker, Jess G. / Sörnmo, Leif / Sugano, Nobuhiko / Werner, Jürgen /

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Volume 57, Issue 3 (Jun 2012)

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Volume 57 (2012)

Experimental thresholds of magnetically induced currents via a figure-of-eight coil up to 25 kHz

Julia Bohnert
  • Corresponding author
  • Institute of Biomedical Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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/ Matthias Gräser / Bernhard Gleich / Olaf Dössel
  • Institute of Biomedical Engineering, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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Published Online: 2012-05-31 | DOI: https://doi.org/10.1515/bmt-2012-0007

Abstract

Magnetic particle imaging, uses magnetic fields of frequencies in the kilo-hertz range. Little research has been carried out upon effects on excitable tissue caused by time-varying magnetic fields in that frequency range. To learn about magnetic stimulation thresholds, a system that is capable of generating a very focused magnetic field strong enough to induce a muscular reaction was built. Stimulation thresholds at 7.38, 12.04, 16.5, and 25.27 kHz have been recorded in 31 trial participants. It has been proved that magnetic stimulation is possible up to even 25 kHz, and respective thresholds have been determined. This article presents the trial setup, procedure, and evaluation of field quantities.

Keywords: magnetic particle imaging; magnetic stimulation; stimulation thresholds

About the article

Corresponding author: Julia Bohnert, Institute of Biomedical Engineering, Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, Karlsruhe 76131, Germany Phone: +49-721-608-42650 Fax: +49-721-608-42789


Received: 2012-05-04

Accepted: 2012-05-10

Published Online: 2012-05-31

Published in Print: 2012-06-01


Citation Information: Biomedizinische Technik/Biomedical Engineering, ISSN (Online) 1862-278X, ISSN (Print) 0013-5585, DOI: https://doi.org/10.1515/bmt-2012-0007.

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©2012 by Walter de Gruyter Berlin Boston. Copyright Clearance Center

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