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Abstract #1814

Novel Splittable N-Tx/2N-Rx Transceiver Phased Array to Optimize both SNR and Transmit Efficiency at 9.4 T

Nikolai I Avdievich 1 , Ioannis A Giapitzakis 1 , and Anke Henning 1,2

1 Max Planck Institute for Biological Cybernetics, Tbingen, Germany, 2 Institute for Biomedical Engineering, UZH and ETH Zurich, Zurich, Switzerland

Surface loop transceiver head phased arrays improve transmit efficiency in comparison to larger Tx-only arrays due to tighter fit. However, the number of elements is limited by the number of available Tx-channels and decoupling issues, which compromises SNR and parallel receive performance. As a proof of concept we developed and constructed a novel splittable 9.4T transceiver array. Splitting of each Tx-loop doubles the number of Rx-elements without necessity of moving the array away from the subject, which allows optimization of both Tx and Rx performance at the same time. Splitting in a larger number of Rx-elements, (e.g.4, 8), is possible.

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