Coil apparatus, magnetic resonance imaging apparatus, and method of controlling the coil apparatus

A method of controlling a coil apparatus, comprising:

• detecting a static magnetic field formed in a Magnetic Resonance Imaging (MRI) apparatus;
• determining a direction of the static magnetic field;
• determining an orientation direction of the coil apparatus with respect to the determined direction of the static magnetic field;
• transmitting a control signal for controlling a phase of a Radio Frequency (RF) signal that is applied to an RF coil, based on the orientation direction of the coil apparatus;
• and
• changing the phase of the RF signal that is applied to the RF coil, based on the control signal.

A magnetic resonance imaging (MRI) apparatus comprising:

• a static magnetic field generator configured to form a static magnetic field in an inner space of the MRI apparatus;
• a Radio Frequency (RF) coil configured to transmit an RF transmission signal onto an object;
• a magnetic field sensor configured to detect the static magnetic field;
• a controller configured to:
• determine a direction of the static magnetic field based on the detected static magnetic field,
• determine an orientation direction of the RF coil with respect to the determined direction of the static magnetic field, and
• transmit a control signal for controlling a phase of an RF signal that is applied to the RF coil, based on the orientation direction of the RF coil;
• and
• a switch configured to change the phase of the RF signal that is applied to the RF coil, based on the control signal.