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Abstract #4296

Dual-nuclei metamaterial implementation for sodium and proton acquisition at 3 T

Rita Schmidt1,2 and Andrew Webb1

1Leiden University Medical Center, Leiden, Netherlands, 2Neurobiology, Weizmann Institute of Science, Rehovot, Israel

Several studies have shown proof-of-principle implementations of metamaterials for local RF transmit efficiency and sensitivity improvement. The most common implementations are based on set of split-rings or set of wires. To support a dual-band enhancement, the design here relies on a combination of the mentioned above two types of metamaterials. Whereas in the original study we focused on 7T 31P/1H dual-band implementation, in this work we were interested to examine the possibility to extend it to much lower frequencies, namely a dual-band metamaterial for 3T 23Na/1H local signal enhancement. The implementation was examined in EM simulations and in phantom experiments at 3 T.

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