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  RF safety of transcranial direct current stimulation equipment during MRI

Kozlov, M., Müller, R., Pampel, A., Kalloch, B., Weiskopf, N., & Möller, H. E. (2018). RF safety of transcranial direct current stimulation equipment during MRI. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2018, Paris, France.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-C414-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-C415-7
Genre: Poster

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 Creators:
Kozlov, Mikhail1, Author              
Müller, Roland2, Author              
Pampel, André2, Author              
Kalloch, Benjamin3, Author              
Weiskopf, Nikolaus1, Author              
Möller, Harald E.2, Author              
Affiliations:
1Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2205649              
2Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634558              
3Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              

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 Abstract: We calculated the RF-induced power deposition at 3T due to the presence of tDCS equipment using an approximation of the human body by a single tissue numerical model. Influences of the tDCS lead including a built-in serial resistor on the power deposition were evaluated. Our case study provided strong evidence that the tDCS setup has a relevant impact on power deposition in proximity of the electrode edges at 3T. These particular conditions are not explicitly considered in the procedures that are used for SAR monitoring on the MRI scanner. The peak voltage across the serial resistor has to be carefully considered in terms of sufficient electrical strength to safely prevent sparks.

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 Dates: 2018-06-19
 Publication Status: Not specified
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Title: Joint Annual Meeting ISMRM-ESMRMB 2018
Place of Event: Paris, France
Start-/End Date: 2018-06-16 - 2018-06-21

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Title: Proceedings of the International Society for Magnetic Resonance in Medicine (2018)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 4061 Start / End Page: - Identifier: -