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Poster

Interferometric Bloch-Siegert B1+ mapping at 7T

MPG-Autoren
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Henning,  A
Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

Externe Ressourcen

https://www.ismrm.org/13/tp08.htm
(Zusammenfassung)

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Zitation

Wyss, P., Malik, S., Boer, V., Bluemink, J., Raaijmakers, A., Cavusoglu, M., et al. (2013). Interferometric Bloch-Siegert B1+ mapping at 7T. Poster presented at 21st Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2013), Salt Lake City, UT, USA.


Zitierlink: https://hdl.handle.net/21.11116/0000-0001-55A4-6
Zusammenfassung
To achieve a sufficient dynamic range for single channel B1+ mapping required for calibration of multi-channel transmit arrays two distinct solutions have been suggestion recently: (1) Bloch-Siegert effect based B1+ mapping and (2) B1+ mapping using linear combinations of transmit channels. In this work, both approaches are combined and interferometric Bloch-Siegert B1+ mapping is introduced. This approach is cross-validated against two recently introduced interferometric B1+ mapping methods based on actual flip angle imaging (AFI) and a multi flip-angle pre-pulse method as well as against single-channel AFI based B1+ mapping.