A radio-frequency coil apparatus includes a first unit including a first radio-frequency
coil that receives a magnetic resonance signal emitted from a subject, a second
unit including a second radio-frequency coil that receives the magnetic resonance
signal, independently from the first radio-frequency coil. The first unit and the
second unit are supported by a support member. The support member is attachable/detachable
to/from at least one of the first unit and the second unit. The support member
is configured to be able to change the relative positions of the first unit and
the second unit.