Abstract: Magnetic Resonance Imaging (MRI) systems including a coil system and methods for controlling the coil system are described. A described system includes a coil system for MRI. The coil system includes a local volume coil configured to transmit and receive MRI signals and an array of surface coils configured to receive MRI signals.

Abstract: The present invention provides for a method for using a silicon dioxide (SiO2) material that is equally effective in improving magnetic field homogeneity during MR imaging. The present invention further provides for using silicon dioxide in its granular state. The granular silicon dioxide can then be poured inside a flexible container and the flexible container can be formed to fit any contour of the body.

Abstract: A system and method of improved homogeneity in internal magnetic resonance (MR) imaging is disclosed. When acquiring MR images that require insertion of an RF coil into a subject, an intracavity coil assembly, or probe, is employed for acquiring MR data of an internal region-of-interest. The intracavity probe includes an RF coil for receiving MR data and a housing enclosing the RF coil. A homogeneity enhancing material is disposable within the housing after insertion into the subject. As a result of disposing the homogeneity enhancing fluid and the RF coil within the housing, inhomogeneities resulting from an air-tissue interface between the RF coil and the subject are reduced.