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Abstract #2767

in-vivo High Resolution Rat Brain Using a Temperature-Stable High-Temperature Superconducting Cryostat at 3 Tesla

In-Tsang Lin1, Hong-Chang Yang2, Jyh-Horng Chen

1Interdisciplinary MRI/MRS Lab, Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan; 2Department of Physics, National Taiwan University, Taipei, Taiwan

In this work, a compact temperature-stable high temperature superconducting (HTS) cryo-system for keeping animal rectal temperature at 37.4 C for more than 3 hours was successfully implemented. The proton resonant frequency (PRF) method was used to monitor the frozen effect. The signal-to-noise ratio (SNR) of the HTS surface coil at 77 K is higher than that of a professionally-made copper coil at 300 K with the same geometry and the SNR gain is 3.79 folds.