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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