Magnetic resonance imaging apparatus and operation method of magnetic resonance imaging apparatus

A magnetic resonance imaging apparatus that captures a magnetic resonance image of a subject, the magnetic resonance imaging apparatus comprising:

• a high-frequency coil;
• a gradient magnetic field generation coil;
• a static magnetic field generation coil that has an inductance larger than an inductance of the high-frequency coil and an inductance of the gradient magnetic field generation coil, the static magnetic field generation coil being a superconducting coil;
• an energization controller that energizes the static magnetic field generation coil, wherein the energization controller is configured to energize the static magnetic field generation coil with a rated current for capturing the magnetic resonance image, and to energize the static magnetic field generation coil with a first current less than the rated current for detecting a magnetic material;
• a voltage measurement unit that measures a voltage between current lead terminals of the static magnetic field generation coil;
• and
• a magnetic material detection unit that detects the magnetic material existing in an imaging space of the magnetic resonance imaging apparatus and a magnetic material existing in a vicinity of the imaging space based on a first voltage that is a voltage measured in a state in which the static magnetic field generation coil is energized with the first current less than the rated current in a case of capturing the magnetic resonance image.