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Schlagwörter:
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Zusammenfassung:
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.
