The RF shimming performance of a 32-channel remote body coil is compared to ideally and non-ideally decoupled local and remote arrays consisting of 8 and 16 channels by evaluation of the singular values as well as evaluation of the RF shimming performance in axial and coronal slices with L-curves. For high-field body imaging, multi-ring remote coil arrays provide high degrees of freedom for RF shimming and can achieve higher B1+ homogeneity, especially for coronal slices. However, to utilize the full RF shimming potential of remote multi-ring transmit arrays, high local SAR has to be taken into account during safety assessment.
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