Keywords: Non-Array RF Coils, Antennas & Waveguides, RF Arrays & Systems, signal-to-noise ratio, high-resolution, cryogenic, RF coils.
Motivation: The signal-to-noise ratio of high-field RF surface coils decays with distance, and we propose cryogenic coils to compensate for the SNR of MR Imaging.
Goal(s): The cryogenic coil in our work aims to significantly improve the SNR of the images at long distances while guaranteeing a large imaging FOV.
Approach: We design a large size RF coil and cool it down for rat imaging.
Results: The experimental results show that the cryogenic coil obtained a SNR of 1.8-fold higher than a room-temperature coil and 1.1-fold higher than that of a commercial multi-channel rat coil.
Impact: The designed coil can help to improve the quality of MR imaging in some scenarios where the object to be measured is far away from the RF receive coil.
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