Esra Abaci Turk1,
2, Yusuf Ziya Ider1, Arif Sanli Ergun3, Ergin
Atalar1, 2
1Electrical
and Electronics Engineering Department, Bilkent University, Ankara, Turkey; 2National
Magnetic Resonance Research Center (UMRAM), Ankara, Turkey; 3Electrical
and Electronics Engineering Department, TOBB-University of Economics and
Technology, Ankara, Turkey
In this study, a new simple Fourier domain based analytical expression is proposed for the Bloch-Siegert phase shift based B1 mapping method. With this new expression off- and on-resonance effects can be understood more easily due to the Fourier domain relation. It is shown that |B1+| can be obtained more accurately by the aid of this expression for short pulse durations and offset frequencies.