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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