Keywords: RF Arrays & Systems, High-Field MRIHigher signal-to-noise ratio (SNR) is the primary motivation for increasing the magnetic field strength of MRI scanners. However, advanced technology, including state-of-art radiofrequency receiver coils, is strictly required to realize the SNR gain from field strength. In this study, we experimentally investigate the capability of conventional loop technology to capture central SNR gain from field strength for head applications. For this purpose, we evaluated the SNR performance of several loop receiver arrays at 3T, 7T, and 10.5T. We showed that realizing the SNR gain from the UHF will likely require RF coil technologies other than the conventional receiver loop arrays.
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