An apparatus for MRI having an RF birdcage coil and an RF shield is
disclosed. The RF birdcage coil includes a coil axis, an end ring portion
disposed about the axis, and a plurality of legs disposed parallel to the
axis and in signal communication with the end ring portion. The RF shield
is disposed about the coil and is in signal communication therewith. The
shield includes a cylindrical conductive sheet having first and second
ends, and a plurality of sets of discontinuous slots disposed about the
cylindrical sheet and running between the first and second ends, wherein
a region of discontinuity within a set of the slots is aligned with the
end ring portion.