A dual-tuned hybrid resonator coil for high field multinuclear MRI/MRS
combines both the TEM and the BC designs, such that the mode splitting is
significantly increased. The coil includes TEM elements and BC coil
windows, where the TEM elements are positioned in each of the windows and
oriented orthogonally thereto. This arrangement allows retaining all of
the advantages of the TEM technology at high frequencies, while
drastically reducing mode mixing and the associated shading artifact.