Abstract #2381
Robust implementation of 3D Bloch Siegert B1 mapping
Andreas Lesch 1 , Andreas Petrovic 1 , and Rudolf Stollberger 1
1
Department for Medical Engineering, Graz
University of Technology, Graz, Styria, Austria
This work describes time varying systematic errors of
the Bloch-Siegert B1 mapping technique resulting from
system instabilities and describes a robust
implementation. The drift in resonance frequency due to
hardware imperfections is shown for different preloads
of the scanner and the corresponding measurement errors
are determined for the conventional Bloch-Siegert
acquisition and comparison with a reference method. By
appropriate implementation the adverse influences can be
suppressed.
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