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Abstract #0434

A Robust Cryogenic RF Coil (88K) for In-vivo Hyperpolarized 13C MRI of Rats

Juan Diego Sánchez Heredia1, Rafael Baron1, Esben S. Szocska Hansen2, Daniel H. Johansen1, Vitaliy Zhurbenko1, Christoffer Laustsen2, and Jan H. Ardenkjær-Larsen1

1Department of Electrical Engineering, Technical University of Denmark (DTU), Kgs. Lyngby, Denmark, 2MR Research Centre, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark

We report the performance of a cryogenic RF receive-only coil for 13C imaging of small animals. It is experimentally demonstrated 2-fold SNR improvement in comparison to a room temperature coil in immediate vicinity of the sample. The self-developed cryostat employed for coil cooling shows thermal stability within 5 h of use for 6 L of LN2, which can be extended up to 12 h if more LN2 is added. The Q88K/Q290K ratio of the unloaded coil is 550/285.

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