Design of quadrature-compensated double-tuned RF surface coil using trap circuits
Chang-Hoon Choi 1, YongHyun Ha1, Arthur W. Magill1, and N. Jon Shah1,2
1Institute of Neuroscience and Medicine-4, Research Centre Juelich, Juelich, Germany, 2Faculty of Medicine, Department of Neurology, JARA, RWTH Aachen University, Aachen, Germany
A novel double
tuned (1H/23Na) butterfly/loop surface coil using LCC
traps was designed whereby the sodium mode was operated in a quadrature. The
performance of this coil was evaluated on a 4T whole-body scanner and compared
with a single-tuned butterfly and a loop coil. Images obtained by the quadrature-compensated
double-tuned RF coil were more uniform in each slice and the SNRs were slightly
higher over the selected ROIs compared to those from the reference coils.
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