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  Rapid pre-saturated TFL transmit field mapping with an optimized 3D centric single-shot readout

Bosch, D., Bause, J., Ehses, P., Zaiss, M., & Scheffler, K. (2020). Rapid pre-saturated TFL transmit field mapping with an optimized 3D centric single-shot readout. Poster presented at 2020 ISMRM & SMRT Virtual Conference & Exhibition.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-D89D-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-D89E-5
Genre: Poster

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 Creators:
Bosch, D1, 2, Author              
Bause, J1, 2, Author              
Ehses, P, Author              
Zaiss, M1, 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, ou_1497794              

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 Abstract: Robust and fast measurements of the transmit field strength is of great importance particularly in parallel transmit applications at ultra-high field. In this work, a pre-saturation TurboFLASH B1+ mapping sequence was optimized for 3-dimensional single-shot acquisition with spiral-centric reordering. Improved SNR and reduced artifacts were achieved by using a variable flip-angle readout. The ability of the proposed sampling scheme to perform fast whole-brain B1+ mapping with low SAR was demonstrated in phantom and in-vivo experiments at 9.4 T. The obtained B1+ maps were comparable to those obtained with the conventional 2D-SatTFL approach but required significantly less scan time.

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 Dates: 2020-08
 Publication Status: Published online
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Title: 2020 ISMRM & SMRT Virtual Conference & Exhibition
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Start-/End Date: 2020-08-08 - 2020-08-14

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Title: 2020 ISMRM & SMRT Virtual Conference & Exhibition
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 3703 Start / End Page: - Identifier: -