Reduction of a high-field dielectric artifact with homemade gel

Abstract

We developed an original dielectric-equivalent gel (Japanese Patent Application ID: P2004-236876A, February 6, 2003) pad that could improve inhomogeneous images caused primarily by B1 homogeneity on a high-tesla magnetic resonance (MR) system. Made easily from various ingredients, our gel could reduce interference from radiofrequency waves at an object's surface and show changes in B1 inhomogeneity. We herein assess the gel's effect using a plastic-bottle phantom on a 3T MR system.