Numerical Study of Superconducting, Low Temperature and Room Temperature RF Coils at Ultra-Low Field 70mT/3MHz MRI

Motivation: Due to its convenience and affordability, ultra-low field MR imaging is growing in popularity. However, poor SNR requires a solution. Goal(s): This research aims to determine if superconducting coils or low temperature coils are still beneficial in terms of SNR in ultra-low-field MR. Approach: Our method compares RF coils made from different conductivities. This comparison will help us determine superconductor importance in coil performance. Results: The findings highlight the significance of superconductor materials and how they can be used to improve imaging performance at lower field strengths. Impact: This study investigates signal-to-noise ratio (SNR) in superconducting, low temperature and room temperature RF coils for affordable ultra-low-field MR imaging and determines if superconducting or low temperature coils are still beneficial in SNR at 0.07T. It shows how superconductor materials improve imaging performance, especially at lower field strengths.