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  Asymmetric Transceiver Phased Array for Functional Imaging and Spectroscopy of the Visual Cortex at 9.4 T

Avdievich, N., Giapitzakis, I., & Henning, A. (2015). Asymmetric Transceiver Phased Array for Functional Imaging and Spectroscopy of the Visual Cortex at 9.4 T. Poster presented at 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015), Toronto, Canada.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-461A-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-21CA-6
Genre: Poster

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 Creators:
Avdievich, NI1, 2, Author              
Giapitzakis, IA1, 2, Author              
Henning, A1, 2, Author              
Affiliations:
1Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_2528692              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: Ultra-high field (>7T) RF coil design is challenging due to decreased transmit efficiency and strongly distorted B1 field profile. For functional SI of the visual cortex open RF coils are highly suitable since they provide an easy access and increased transmit efficiency by focusing RF field. In this work we demonstrated that a 9.4T 5-channel array with asymmetric arrangement of 4 transmit and 4 receive elements improves the transmit profile without compromising the reception. We also evaluated changes in the transmit efficiency, penetration depth and SAR due to variation in the array size and the phase shift between the elements.

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 Dates: 2015-06-01
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: AvdievichGH2015_2
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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: 3177 Start / End Page: - Identifier: -