Mri apparatus and mri method

An MRI apparatus comprising:

• a static magnetic field magnet configured to generate a static magnetic field;
• a shim coil configured to enhance uniformity of the static magnetic field;
• and
• processing circuitry configured to
• acquire shimming data for correcting static magnetic field non-uniformity,
• control an electric current value of the shim coil by using the shimming data,
• acquire MR spectral data by an MRS scan in which a spectrum of the object is detected,
• determine whether to reacquire the shimming data during the MRS scan or not, based on the MR spectral data, and
• reacquire the shimming data during the MRS scan if reacquisition is determined, and control the electric current value of the shim coil during the MRS scan based on reacquired shimming data.

An MRI method capable of executing at least one of an MRS scan for detecting a spectrum of an object and an imaging scan that acquires magnetic resonance signals for generating an image of the object,

• the MRI method comprising at least two steps of:
• acquiring shimming data for correcting non-uniformity of a static magnetic field;
• and controlling an electric current value of a shim coil for enhancing uniformity of the static magnetic field based on the shimming data,
• wherein, in addition to the at least two steps, the imaging scan further comprises steps of:
• (i) acquiring MR image generation data by acquiring the magnetic resonance signals for generating an image of the object;
• (ii) determining whether to reacquire the shimming data or not, based on the MR image generation data;
• and (iii) reacquiring the shimming data if reacquisition is determined, and controlling the electric current value of the shim coil based on reacquired shimming data,
• wherein, in addition to the at least two steps, the MRS scan further comprises steps of:
• (i) acquiring MR spectral data by detecting the spectrum of the object;
• (ii) determining whether to reacquire the shimming data or not, based on the MR spectral data;
• and (iii) reacquiring the shimming data if reacquisition is determined, and controlling the electric current value of the shim coil based on reacquired shimming data.