Abstract #4260

Triple-tuned Dual-channel Butterfly-Dipole Coil for 7T Calf Muscle MRI/MRS

Zhengyang Sun¹, Ayaka Shinozaki^1,2, Jack J. Miller³, Titus Lanz⁴, Damian J. Tyler^1,2, and Ladislav Valkovič^1,5

¹Oxford Centre for Clinical Magnetic Resonance Research, RDM Cardiovascular Medicine, University of Oxford, Oxford, United Kingdom, ²Department of Physiology, Anatomy, and Genetics, University of Oxford, Oxford, United Kingdom, ³Department of Clinical Medicine, Aarhus University, Aarhus, Denmark, ⁴Rapid Biomedical, Rimpar, Germany, ⁵Department of Imaging Methods, Institute of Measurement Science, Slovak Academy of Sciences, Bratislava, Slovakia

Synopsis

Keywords: RF Arrays & Systems, RF Arrays & Systems, High-field MRI, Multi-nuclear, RF antenna

Motivation: Multi-nuclear MRI/MRS provides non-invasive insights into muscle vitality, which can help in early diagnosis and intervention.

Goal(s): To develop an efficient triple-tuned RF coil capable of acquiring signals from ¹H, ³¹P, and ¹³C simultaneously for calf muscle MRI/MRS at 7T.

Approach: A novel dual-channel triple-tuned RF coil is proposed by combining a dipole antenna with a dual-tuned butterfly coil, providing effective decoupling and high sensitivity.

Results: Electromagnetic simulations and bench tests of the novel coil design demonstrated successful decoupling and high sensitivity for all three nuclei, with excellent coverage of the calf muscle at 7T.

Impact: This design facilitates comprehensive muscle assessment using MRI/MRS at ultra-high field strength and has the potential to expand its applications to other anatomical areas and nuclei.

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