Abstract #2683

Decoupling Controller Design for Real-time Feedback of B0 Shim Systems

Paul Chang^1,2, Sahar Nassirpour^1,2, and Anke Henning^1,3

¹MPI for Biological Cybernetics, Tuebingen, Germany, ²IMPRS for Cognitive and Systems Neuroscience, Eberhard University of Tuebingen, Tuebingen, Germany, ³Institute of Physics, Ernst-Moritz-Arndt University Greifswald, Greifswald, Germany

Real-time B0 feedback has been shown to be beneficial for the controlling of B0 fluctuations. However, update rates that have been reported are slow (~100ms) and either use pre-emphasis to correct for the coupling and faster dynamics of the system or only use control the frequency

We show that for faster update rates (±1ms) pre-emphasis (i.e. dynamic decoupling) is not required and that static decoupling can perform equally well or better.

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