US 11,883,148 B2
Systems and methods for multi-frequency coil for magnetic resonance imaging
Wei Chen, Minneapolis, MN (US); Guangle Zhang, Minneapolis, MN (US); Wei Zhu, Minneapolis, MN (US); and Xiao-Hong Zhu, Minneapolis, MN (US)
Assigned to REGENTS OF THE UNIVERSITY OF MINNESOTA, Minneapolis, MN (US)
Filed by Regents of the University of Minnesota, Minneapolis, MN (US)
Filed on Jul. 25, 2022, as Appl. No. 17/872,793.
Claims priority of provisional application 63/225,230, filed on Jul. 23, 2021.
Prior Publication US 2023/0190129 A1, Jun. 22, 2023
Int. Cl. A61B 5/055 (2006.01); A61B 5/08 (2006.01)
CPC A61B 5/055 (2013.01) [A61B 5/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A radiofrequency (RF) coil system for performing magnetic resonance imaging (MRI), magnetic resonance spectroscopy (MRS), or magnetic resonance spectroscopy imaging (MRSI) configured to be operated at multiple resonant frequencies, the coil system comprising:
at least one conductive loop and a capacitor forming an RF resonant antenna;
a tuning-matching circuit electrically connected to the RF resonant antenna to operate at multiple resonant frequencies across a desired operational range; and
two conductive legs electrically connecting the tuning-matching circuit to the RF resonant antenna and having a length selected to generate at least two selected resonant frequencies with a selected frequency difference.