Russell Luke Lagore1, Steve Jungst1, Jerahmie Radder1, Edward J Auerbach1, Steen Moeller1, Andrea Grant1, Lance DelaBarre1, Matthew Waks1, Pierre-Francois Van de Moortele1, Gregor Adriany1, and Kamil Ugurbil1
1Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, United States
1Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, United States
A 128-CH RX array is designed & prototyped
for human head imaging at 10.5T. The coil uses flexible
PCBs for loop conductors. Results for eight loops show low coupling and good stability. EM simulations will estimate the SNR gain over a 64-CH array which will be verified experimentally.
Figure 1: Receive array former (helmet) shown from
several angles: (B) Front, (C) Side, (D) Back, and (E) Top. Front end
electronics (preamps and PIN diode bias tees) are shown mounted to the top
plate. The top plate mounts to the helmet via a 3D printed central pillar and
four 12 mm diameter fiberglass rods.
Figure 4: Off-coil (top-left) and on-coil (bottom-left)
preamp PCBs are shown in the photo along with corresponding circuit schematics
(right) for the loop feed circuit and preamp board.
