Abstract #4256

An Analytical Study of the effect of RF Chokes on Sensitivity Loss for 'iPRES' Coils at 3T

Yubin Cai¹, John Stager¹, Hsin-Jung Yang¹, Debiao Li¹, and Hui Han¹

¹Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States

Integrated Parallel Reception, Excitation, and Shimming (iPRES) technology integrates multi-coil B0 shimming capability into conventional receive arrays^1-6. To enable simultaneous AC and DC current in the shared conductor, the addition of RF chokes or inductors across distributed capacitors on RF receive loops appears to be inevitable. iPRES coils experimentally shows non-negligible SNR loss, compared to its conventional counterpart³. This study initiates a quantitative and analytical explanation on how these added chokes would impact the coil quality factor and sensitivity.

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