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Abstract #0608

Analysis of B1 Mapping by Bloch Siegert Shift

MAGNA25Esra Abaci Turk1, 2, Yusuf Ziya Ider1, Ergin Atalar1, 2

1Electrical and Electronics Engineering Department, Bilkent University, Ankara, Turkey; 2UMRAM, Bilkent University, Ankara, Turkey

In this study, B1 mapping by the Bloch-Siegert shift is analyzed with simulations and experiments. The importance of the pulse duration and the crusher gradients are investigated. It is shown that the off-resonance pulse duration is necessary for an accurate B1 mapping and also crusher gradients have to be used in order to remove the echo originating from tilting off-slice spins by the off-resonance pulse.