Figure 1

Structural geometry of the metamaterial and simulation of near field magnetic and electric field distributions. (a) Schematic of the MRI setup with a cut-out for better visualization of the setup. (b) A photograph of the in-vivo experiment including the transmit (outer) and multi-element receive coil array (inner). (c) Artist’s view of the hybrid metasurface, including high permittivity dielectric substrate (left) combined with its metallic structure (right). (d) Numerically calculated magnetic (left) and electric (right) field maps in vacuum near the metasurfaces (shown as a blue rectangle). The region of interest is depicted as a black dashed rectangle.