Magnetic resonance imaging apparatus

A magnetic resonance imaging apparatus comprising:

• a plurality of receive coils that have a plurality of coils, that are adjusted to resonate at a specific frequency, and that receive a nuclear magnetic resonance signal from a subject;
• a plurality of decoupling circuits that are respectively connected to the plurality of receive coils and that each include a field effect transistor, the plurality of decoupling circuits switching each of the receive coils between a resonance state and a detuning state according to a drive voltage applied to a gate of the field effect transistor;
• a controller that controls the drive voltage applied to the gate of the field effect transistor of each of the plurality of decoupling circuits;
• a detection unit that includes a detection circuit for causing a current to flow from a reference voltage source to the field effect transistor and that detects whether the current has flowed to the field effect transistor via the detection circuit;
• and
• a determination unit that determines normality or abnormality of the field effect transistor based on a state of the drive voltage applied to the gate of the field effect transistor and a detection result of the detection unit.