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Sodium B1 mapping at 9.4 T

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Pohmann,  R
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Former Department MRZ, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;
Dept. Empirical Inference, Max Planck Institute for Intelligent Systems, Max Planck Society;

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Citation

Mirkes, C., Shajan, G., Hoffmann, J., Brenner, D., Pohmann, R., & Scheffler, K. (2014). Sodium B1 mapping at 9.4 T. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2014, Milano, Italy.


Cite as: https://hdl.handle.net/21.11116/0000-0001-32E9-0
Abstract
Accurate sodium B1 field mapping is a key requirement for quantitative sodium imaging at ultra-high field strength. In this study the performance of three B1 mapping techniques was evaluated in a phantom at 9.4 T. Compared to the double angle and the Bloch-Siegert shift based methods, the phase sensitive method provided the most reliable maps, especially in regions of weak B1.