For a wide range of MRI and MRS applications dual-tuned MR coils are used capable of multi-nuclear studies. Conventional ultra-high-field preclinical dual-tuned coils are either surface loops having high SNR over a limited FOV or volumetric coils with ultimate coverage compromised by low SNR while used in Tx and Rx regimes. In this contribution we propose an alternative design of the dual-tuned 1H/31P coil based on an open self-resonant periodic structure, which doesn’t require variable lumped capacitors for tuning and matching. It has been shown that the proposed coil is suitable for studying energetics in human forearm muscles at 4.7T.
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