1. A system for magnetic resonance imaging assisted surgery, comprising: a magnet having a lower pole and an upper pole arranged along a vertical axis defining a patient receiving space therebetween; a bed positioned within the patient receiving space for supporting a patient, the bed having a frame and a support surface onto which the patient is positioned; and an antenna support assembly adjustably mounted to the bed, the support assembly being adapted to support a housing having one or more antenna coils, the support assembly being adapted to adjustably position the housing, the housing comprising a skeletal structure that allows access to the portion of patient's anatomy adjacent the housing and from which signals are received by the coils.