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Abstract #4109

A 16-channel splittable non-overlapped self-decoupled loop transmitter for 10.5 Tesla human head imaging

Matt Waks1, Nader Tavaf1, Russell Lagore1, Steve Jungst1, Jerahmie Radder1, Andrea Grant1, Lance DelaBarre1, Pierre-Francois Van de Moortele1, Gregor Adriany1, and Kamil Ugurbil1
1University of Minnesota, Minneapolis, MN, United States


A 16-channel dual row loop transmitter utilizing self-decoupling principles has been designed and prototyped for human head imaging at 10.5 Tesla. The coil employs an intentional asymmetry of impedances within each coil element in order to reduce the interaction between coil elements. Electromagnetic simulations provide an estimate for achievable decoupling and the expected loop current distribution with both a phantom load and a human head model. Bench measurements confirmed the simulation results and indicated coil to coil decoupling on the order of -10 dB or better. MR experimental results indicated minimal interaction with our 63 channel receiver array.

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