Abstract #1552

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

Tania S. Vergara Gomez^1,2, Marc Dubois¹, Stanislav Glybovski³, Benoit Larrat⁴, Julien de Rosny⁵, Carsten Rockstuhl^6,7, 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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