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  Towards routine application of dynamic parallel transmission for whole-brain imaging at 9.4 Tesla

Hoffmann, J., Shajan, G., Mirkes, C., Shao, T., Henning, A., Pohmann, R., et al. (2015). Towards routine application of dynamic parallel transmission for whole-brain imaging at 9.4 Tesla. 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-462B-D Version Permalink: http://hdl.handle.net/21.11116/0000-0006-9B74-9
Genre: Poster

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 Creators:
Hoffmann, J1, 2, Author              
Shajan, G1, 2, Author              
Mirkes, C1, 2, Author              
Shao, T1, 2, Author              
Henning, A2, 3, Author              
Pohmann, R1, 2, Author              
Scheffler, K1, 2, Author              
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
3Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_2528692              

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 Abstract: The requirements for implementing a multi-purpose, pTx-enabled RF setup for whole-brain imaging at 9.4 Tesla are high. They include transmit arrays with sensitivities distributed in all dimensions, receive hardware for high-SNR parallel signal reception, numerical simulations for compliance with SAR limits as well as rapid, volumetric calibration scans. In this work, we report our progress in achieving these objectives. A 16-channel dual-row Tx / 31-channel Rx-array combination was interfaced to an 8-channel pTx system. SAR was evaluated numerically, rapid calibration scans were acquired using a 3D DREAM sequence and superior excitation quality using Spokes pulses is demonstrated in vivo.

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 Dates: 2015-06
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: HoffmannSMSHPS2015
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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
Start-/End Date: 2015-05-30 - 2015-06-05

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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: 3201 Start / End Page: - Identifier: -