The potential of using low-field MRI scanners as a platform to enable low-cost 31P studies outside of the conventional hospital environment was examined. All experiments were conducted on an ONI 1T scanner with a custom broadband multichannel receiver. A transmit-only birdcage and receive-only four-element array were designed and built to enhance the SNR and improve linewidth. Preliminary phantom and in vivo results show the proposed design improved the linewidth from 0.71 ppm to 0.33 ppm, SNR was increased by approximately 2 times, and inorganic phosphate and phosphocreatine exchange were observed during the volunteer’s exercise.
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