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  Homogeneous high-flip-angle 3D localization by parallel transmission at 9.4T

Shao, T., Zhang, Y., Avdievich, N., Mirkes, C., Scheffler, K., Glaser, S., et al. (2017). Homogeneous high-flip-angle 3D localization by parallel transmission at 9.4T. In 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017) (pp. 650-650).

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Item Permalink: https://hdl.handle.net/21.11116/0000-0000-C5A0-C Version Permalink: https://hdl.handle.net/21.11116/0000-0000-F2D4-F
Genre: Meeting Abstract

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 Creators:
Shao, T1, 2, Author           
Zhang, Y, Author
Avdievich, N1, 2, 3, Author           
Mirkes, C3, Author           
Scheffler, K1, 3, Author           
Glaser, S4, Author           
Henning, A1, 2, 3, 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              
3Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              
4Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              

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 Abstract: This work presents in vivo experimental result of high-flip-angle multi-dimensional parallel transmission at a 9.4T human whole-body MRI scanner. A 2D pTx saturation pulse (90°) and a slice selective 3D pTx excitation pulse (60°) were designed by using an algorithm that combines LSQR and optimal control (OC) methods and enables high-flip-angle pTx pulse design with a strict constraint of transmit power. An actual flip angle imaging (AFI) sequence was coded to measure the flip angle map of the pre-saturated slice excitation profile achieved by the sequentially implemented pTx pulses.

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 Dates: 2017-04
 Publication Status: Issued
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 Identifiers: BibTex Citekey: ShaoZAMSGH2017
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Title: 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017)
Place of Event: Honolulu, HI, USA
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Title: 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 1122 Start / End Page: 650 - 650 Identifier: -