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  Universal Parallel Transmit Pulse Design for 3-Dimensional Local-Excitation: A 9.4T Simulation Study

Geldschläger, O., Shao, T., & Henning, A. (2019). Universal Parallel Transmit Pulse Design for 3-Dimensional Local-Excitation: A 9.4T Simulation Study. Poster presented at 27th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2019), Montréal, QC, Canada.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0003-96F0-4 Version Permalink: https://hdl.handle.net/21.11116/0000-0003-C750-2
Genre: Poster

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http://indexsmart.mirasmart.com/ISMRM2019/PDFfiles/4639.html (Abstract)
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 Creators:
Geldschläger, O1, 2, Author           
Shao, T1, 2, Author           
Henning, A1, 2, Author           
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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: This study introduces a parallel-transmission (pTx) radio-frequency (RF) pulse-design-method to create an universal pTx RF-pulse that excites the same 3-dimensional local excitation pattern with a desired flip-angle in different human heads at 9.4T. Thus, it prospectively abandons the need for time-consuming subject specific B1+ mapping and pTx-pulse calculation during the scan session. The resulting universal pulses created magnetization profiles with an only marginal worse Normalized-Root-Mean-Square-Error (NRMSE) compared to the magnetization profiles produced by the pulses tailored to individual heads.

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 Dates: 2019-05
 Publication Status: Published online
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Title: 27th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2019)
Place of Event: Montréal, QC, Canada
Start-/End Date: 2019-05-11 - 2019-05-16

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Title: ISMRM 27th Annual Meeting & Exhibition
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 4639 Start / End Page: - Identifier: -