Patent ID: 8188740

Claim:
A magnetic resonance imaging apparatus comprising, a static magnetic field generation means for generating a static magnetic field in a vertical direction, an imaging means for applying an RF magnetic field and a gradient magnetic field to a test object placed in the static magnetic field, and a receiving means for receiving a nuclear magnetic resonance signal generated from the test object, the receiving means comprising a receiver coil unit made up of multiple types of sub-coils, wherein, the receiver coil unit comprises a bed coil unit whose longitudinal direction agrees with a body axis direction of the test object, and an upper coil unit which is detachably mounted on the bed coil unit, the bed coil unit comprises a carrying surface for placing the test object thereon, and multiple lower sub-coils arranged in a lower part of the carrying surface, the upper coil unit comprises multiple upper sub-coils which are connected to the lower sub-coils, and the upper sub-coils and the lower sub-coils are connected by mounting the upper coil unit on the bed coil unit to form the multiple types of sub-coils.