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Abstract #2664

Evaluation of a new long-lasting Silicon Carbide based dielectric pad for ultra-high field MRI

Zo Raolison1, Redha Abdeddaïm2, Marc Dubois2, Lisa Leroi1, Luisa Neves2, Franck Mauconduit3, Stefan Enoch2, Nicolas Malléjac4, Pierre Sabouroux2, Anne-Lise Adenot-Engelvin4, and Alexandre Vignaud1

1CEA-Neurospin, Paris, France, 2Institut Fresnel, Marseille, France, 3Siemens Healthineers, Saint Denis, France, 4CEA-Le Ripault, Monts, France

A simple and efficient way to enhance the B1+ field dark areas appearing in the temporal lobes at 7T in MRI is to use pads with relative High-Dielectric Constant materials which most promising ones are perovskites mixed with water. As their performance drops over time, those materials are still not currently used in clinical routine. A novel high lifespan material made of 4-Fluoro 1.3-dioxalan-2-one and Polyethylene glycol mixed with silicon carbide particles is presented here. It is shown that their performances are on pair with BaTiO3 water mixture through permittivity measurements and MRI scans a 7T.

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