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Abstract #1552

Resonant and non-resonant coupled-wire coils for small-animal multinuclear imaging

Tania S. Vergara Gomez1,2, Marc Dubois1, Stanislav Glybovski3, Benoit Larrat4, Julien de Rosny5, Carsten Rockstuhl6,7, Monique Bernard2, Redha Abdeddaim1, Stefan Enoch1, and Frank Kober2

1Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France, 2Aix Marseille Univ, CNRS, CRMBM- UMR 7339, Marseille, France, 3Department of Nanophotonics and Metamaterials, ITMO University, St. Petersburg, Russian Federation, 4Commissariat à l’Energie Atomique et aux Energies Alternatives, Direction de la recherche Fondamentale, NeuroSpin, Université Paris Saclay, Gif-sur-Yvette, France, 5ESPCI Paris, PSL Research University, CNRS, Institut Langevin, Paris, France, 6Institute of Theoretical Solid State Physics, Karlsruhe Institute of Technology, Karlsruhe, Germany, 7Institute of Nanotechnology, Karlsruhe Institute of Technology, Karlsruhe, Germany

Metasurface coils coupled with an unmatched loop were suggested earlier as an alternative to classical surface and volume coils, with the aim to optimize volume and sensitivity. We developed a new approach combining a commercial surface coil and a non-resonant coupled-wire structure. With this approach, the signal contribution from the driving loop can be efficiently added to that of the wire surface. The configuration was simulated, built and tested for 1H and 19F at 7T. The results showed that this new strategy improves the coil's sensitive volume while simultaneously maintaining high SNR.

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