RF Shimming via Efficient Modes for Massively Parallel Transmit Coils
Christian Findeklee 1 , Christoph Leussler 1 , Peter Vernickel 1 , and Ulrich Katscher 1
Research Laboratories Hamburg, Philips GmbH
Innovative Technologies, Hamburg, Hamburg, Germany
Instead of using single coil elements as basis for RF
shimming, we propose to use eigenmodes, which can be
sorted by efficiency w.r.t. average
power or global SAR. By using just most efficient modes,
we inherently achieve a good compromise between
homogeneity and power/SAR in a direct approach instead
of a time-consuming traditional L-curve evaluation.
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