1. A magnetic resonance imaging apparatus comprising: a magnet applying a magnetic field to a space; a coil system surrounding the space, the coil system comprising: a phased array having at least two coils; means for driving each coil of the phased array at a first amplitude and phase determined to transmit a first magnetic field at a target region in the space; and means for subsequently driving each coil of the phased array at a second amplitude and phase determined to transmit a second magnetic field to compliment the first magnetic field, wherein the second amplitude and phase is different from the first amplitude and phase; and a magnetic resonance imaging system in communication with an interface subsystem of the coil system to receive a first response to the first magnetic field and a second response to the second magnetic field and to construct an image of the target region from the first response and the second response.