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Abstract #2262

Effect of Matching Network Losses on preamplifier decoupling circuit topologies at room and cryogenic temperature for 3 T 13C applications

Wenjun Wang1, Vitaliy Zhurbenko1, Juan Diego Sánchez Heredia2, and Jan Henrik Ardenkjær Larsen2
1Department of Electrical Engineering, Technical University of Denmark, Kongens Lyngby, Denmark, 2Department of Health Technology, Technical University of Denmark, Kongens Lyngby, Denmark


The SNR performances of a three- and a four-element matching circuit topologies are compared for the case of 3 T 13C imaging. The benefit to SNR of cryogenic cooling is also compared against the choice of matching networks. Results show that while cryogenic cooling can improve the output SNR by 2–3 dB, a less lossy matching network design can improve the SNR performance by 7–8 dB. The importance of matching network design ought not to be dismissed.

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