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Abstract #4036

Target-field optimized quadrature RF coils for wrist imaging on a 76 mT Halbach-based MR system

Bart de Vos1, Thomas O'Reilly1, Wouter Teeuwisse1, Rob Remis2, and Andrew Webb1
1C.J. Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, Netherlands, 2Circuits and Systems, Delft University of Technology, Delft, Netherlands

We describe a design method for quadrature RF coils for Halbach based magnets using a target field approach. The resulting current densities corresponding to these coils make them inherently decoupled. We constructed a coil pair for a newly built 76 mT system and imaged the wrist of a volunteer. The images showed a 33% SNR improvement over a linear coil, in close agreement with simulations.

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