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Motivation: The capability of coaxial-transmission-line (CTL) RF coils to exhibit multimode operating frequencies make them versatile for applications involving dual-nuclear coil resonators for Magnetic Resonance Imaging and Magnetic Resonance Spectroscopy studies. Goal(s): Design eight-channel dual-tuned CTL coils array for human head imaging at 10.5 Tesla and address the electromagnetic coupling issue between elements of the array. Approach: The high impedance feature of the high-frequency mode helps to achieve sufficient decoupling for 1H channels while the magnetic wall technique is used to decouple the low-frequency mode tuned to heteronuclear frequency. Results: A well-decoupled array of dual-tuned CTL coils is feasible for head imaging at 10.5T. Impact: The feasibility of advanced multichannel dual-tuned RF coil array can contribute to more informative imaging and spectroscopy, which is valuable in various medical and research applications.
Payne et al. (Tue,) studied this question.
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