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Abstract #0022

Volumetric resonators based on novel materials for 3 T MRI

Anna Mikhailovskaya1, Alena Shchelokova1, Dmitry Dobrykh1, Ivan Sushkov2, Alexey Slobozhanyuk1,3, and Andrew Webb4

1Department of Nanophotonics and Metamaterials, ITMO University, Saint Petersburg, Russian Federation, 2Department of Radiology, Vreden Russian Institute of Traumatology and Orthopedics, Saint Petersburg, Russian Federation, 3Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra, Australia, 4C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands

We propose and characterise a novel metamaterial-inspired approach which reduces substantially the required outer diameter of a dielectric resonator thus making possible to design compact structures for 3 T. When used in an inductively-coupled wireless mode, the sensitivity of the “meta-resonator” was measured to be slightly higher than that of a standard dielectric resonator operating in its degenerate circularly-polarized HEM11 modes. This study demonstrates the first application of a metamaterial-based approach to MR volume coil design.

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