RF coil device and RF shield device for different MRI modes

A radio frequency (RF) coil device for a magnetic resonance (MR) examination system, wherein

• the RF coil device comprises a first coil and a second coil,
• the first coil and the second coil are arranged with a common center axis,
• the first coil and the second coil have rungs, which are arranged non-parallel to the center axis of the RF coil device,
• the RF coil device is provided integrally with a RF screen device surrounding the first coil and the second coil,
• the rungs are coupled to the RF screen device,
• the first coil has a coil structure which is mirrored compared to a coil structure of the second coil, and
• the first coil and the second coil are switchable to be active for different modes of operation;
• wherein one coil out of the first coil and the second coil is active for TX mode and is provided with a coil structure for high power transmission, and the other coil is active for RX mode and is provided with a low power design.

A radio frequency (RF) coil device for a magnetic resonance (MR) examination system, the RF coil device comprising:

• a first coil;
• a second coil having a coil structure different from a coil structure of the first coil;
• and
• a RF screen device surrounding the first coil and the second coil;
• wherein:
• the first coil and the second coil are arranged with a common center axis;
• the first coil and the second coil have rungs which are arranged non-parallel to the common center axis, and the rungs are coupled to the RF screen device;
• the first coil and the second coil are switchable to be active for different modes of operation;
• the RF screen device includes a first shield and a second shield arranged with the common center axis;
• the first shield has a shield structure different from a shield structure of the second shield and the first shield and the second shield are designed in accordance with the different modes of operation of the RF coil device;
• and
• the rungs of the first and the second coil are coupled to the first and second shield, respectively.