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  On the Contribution of Electric-Type Current Patterns to UISNR for a Spherical Geometry at 9.4 T

Pfrommer, A., & Henning, A. (2015). On the Contribution of Electric-Type Current Patterns to UISNR for a Spherical Geometry at 9.4 T. In 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015).

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-45CF-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-F0E0-3
Genre: Meeting Abstract

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Pfrommer, A1, Author              
Henning, A2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Abstract: Parallel imaging is intrinsically limited by Maxwell’s equations. A complete set of vector solutions to the Helmholtz equation consists of both curl-free and divergence-free fields. In this study we investigated the contribution of electric-type current patterns to UISNR for different voxel positions and acceleration factors in a spherical model at 9.4T. For moderate acceleration the electric mode increased UISNR by maximally 55. For very high acceleration, however, UISNR was mostly caused by the magnetic mode. The reason for this might be the much faster growing power loss of the electric mode with respect to the expansion order.

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 Dates: 2015-06-04
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: PfrommerH2015
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Title: 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015)
Place of Event: Toronto, Canada
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Title: 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 0856 Start / End Page: - Identifier: -