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  Tranceive Phased Array with High Transmit Performance for Human Brain Application at 9.4 T

Avdievich, N., Pfrommer, A., Hoffmann, J., Chadzynski, G., Scheffler, K., & Henning, A. (2014). Tranceive Phased Array with High Transmit Performance for Human Brain Application at 9.4 T. In Joint Annual Meeting ISMRM-ESMRMB 2014.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-33EB-D Version Permalink: http://hdl.handle.net/21.11116/0000-0001-372F-E
Genre: Meeting Abstract

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 Creators:
Avdievich, Nikolai1, 2, Author              
Pfrommer, Andreas1, 2, Author              
Hoffmann, Jens2, 3, Author              
Chadzynski, G2, 3, Author              
Scheffler, Klaus2, 3, Author              
Henning, Anke1, 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              
3Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Abstract: Surface loop phased arrays have been shown to improve transmit performance and B1 homogeneity for head imaging up to 9.4T. However, transmit arrays enlarged to fit receive arrays often cannot satisfy the requirements in B1 and bandwidth for ultra-high field spectroscopic imaging. We have developed and constructed a tight fit 400MHz 8-channel transceiver array. The array improved transmit efficiency and homogeneity in the axial slab through the phantom’s center when used in CP mode. B1+ averaged over the central axial slice measured 55.6 nT/V, which corresponds to 12.4 uT per 1 kW of RF power delivered directly to the array.

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 Dates: 2014-05
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: AvdievichPHCSH2014
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Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Place of Event: Milano, Italy
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Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 0622 Start / End Page: - Identifier: -