Abstract #0608

Analysis of B1 Mapping by Bloch Siegert Shift

Esra 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.