Combined Shim-RF Array for Highly Efficient Shimming of the Brain at 7 Tesla

Keywords

ability active adverse amperes applied approaches around array arrays audience away become benefit bias biomedical block blocking body bottom brain bridge bridging built cable capacitors challenging chokes close coil coils combination combined comes conducting confines constrained control convert copper creating decoupling dependent detection detune detuning deviation diode distortion effectively efficiency efficient efficiently element elements enough estate evaluated even experimental exploiting fact field fields fitting flowing frequencies full functionality functions future general generated geometry grant greatly head heating helmet highly human hypothesized ideal induced inductive inductor inductors inhomogeneity leaking leave limited loaded local localized loop loss maps matched maximize measured models modifications necessary need onto optimal pair path performance phantom placed planar polynomials preamplifier prevent previous printed problem radiology real receive reduce reduces resists shape shapes shim shimming significantly simulation simulations slice slices solve space subject supplied support surface susceptibility synthesize systems table target toroidal transmit tuning turn twisted unloaded validate wire