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  Optimization of the Receive Performance of a Tight-Fit Transceiver Phased Array for Human Brain Imaging at 9.4T

Avdievich, N., Giapitzakis, I., & Henning, A. (2017). Optimization of the Receive Performance of a Tight-Fit Transceiver Phased Array for Human Brain Imaging at 9.4T. Poster presented at 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017), Honolulu, HI, USA.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-C4CB-E Version Permalink: http://hdl.handle.net/21.11116/0000-0001-2169-4
Genre: Poster

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Avdievich, N1, 2, Author              
Giapitzakis, I1, 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, ou_2528692              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: Tight-fit ultra-high field (UHF) (>7T) surface loop transceiver (TxRx)-phased arrays improve transmit (Tx) efficiency in comparison to Tx-only arrays built larger to accommodate for receive (Rx)-only array inserts. However, the number of elements in TxRx-arrays is restricted by the number of available RF Tx-channels (commonly 8 or 16), which limits the Rx-performance. A prototype of a 16-element array, which consists of 8 TxRx-surface loops circumscribing a head and 8 additional “vertical” Rx-only loops positioned in the center of each TxRx-loop perpendicularly, was constructed. This addition improves the Rx-performance substantially and has a minimal effect on both the Tx-efficiency and maximal local SAR.

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 Dates: 2017-04-25
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: AvdievichGH2017_3
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Title: 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017)
Place of Event: Honolulu, HI, USA
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Title: 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 4309 Start / End Page: - Identifier: -