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  Universal Parallel Transmit Pulse Design for Local Excitation

Geldschläger, O., Shao, T., & Henning, A. (2018). Universal Parallel Transmit Pulse Design for Local Excitation. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2018, Paris, France.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-7DD2-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-9349-7
Genre: Poster

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Geldschläger, O1, 2, Author              
Shao, T1, 2, Author              
Henning, A1, 2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528692              

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 Abstract: This study investigates different parallel transmission (PTx) pulse design methods to find a universal PTx-pulse that excites the same local pattern with a 90 degree flip-angle across different heads. Thus, it abandons prospective the need for time-consuming subject specific B1+mapping and PTx-pulse calculation, during the scan session. The best results were achieved by solving a minimax optimization problem were the maximum normalized root mean square error (NRMSE) over all subjects was minimized. The resulting pulse created magnetization profiles with a maximum NRMSE of around 0.049 across all volunteers.

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 Dates: 2018-06
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: GeldschlagerSH2018
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Title: Joint Annual Meeting ISMRM-ESMRMB 2018
Place of Event: Paris, France
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Title: Joint Annual Meeting ISMRM-ESMRMB 2018
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 3395 Start / End Page: - Identifier: -