A radio frequency coil assembly for use in a magnetic resonance system
comprises a set of conductors for detecting magnetic resonance signals in
three orthogonal planes and capacitors for resonating the set of
conductors at a predetermined frequency. A conductor of the set of
conductors is placed on each edge of a cube-shaped volume and the
capacitors are placed on each conductor of the set of conductors such
that each conductor has substantially equal effective capacitance.A four
element band pass birdcage coil comprises two square end ring segments,
each end ring segment comprising four sides of equal length, and four
rungs of length equal to a side of the end ring segment, and wherein four
rungs join in respective corners of the end ring segments.