Information processing apparatus, information processing method, and non-transitory computer-readable storage medium storing information processing program

An information processing apparatus, comprising:

• processing circuitry configured to
• obtain a first g map generated using first magnetic resonance data acquired through a first parallel imaging process performed by using a plurality of reception coils and a second g map generated using second magnetic resonance data related to a second parallel imaging process performed by using the plurality of reception coils, the first g map indicating a spatial distribution of first g factors generated for a reception coil, the second g map indicating a spatial distribution of second g factors generated for a reception coil, the first g factors and the second g factors indicating a degree of amplification noise in an unfolding of the first and second parallel imaging processes,
• wherein the first parallel imaging process has an imaging protocol to acquire a magnetic resonance signal related to a trajectory corresponding to an auto-calibration signal in a k-space,
• the first magnetic resonance data corresponding to each of the plurality of reception coils includes data related to the auto-calibration signal,
• the second parallel imaging process has an imaging protocol to acquire a magnetic resonance signal in which aliasing in an image in an image space is unfolded by using a plurality of sensitivity maps corresponding to the plurality of reception coils, and
• the second magnetic resonance data corresponding to each of the plurality of reception coils includes data used for generating a corresponding one of the plurality of sensitivity maps;
• adjust the plurality of first g factors so as to reduce a difference between the plurality of first g factors in a first region of the first g map and the plurality of second g factors, within a region of the second g map corresponding to the first region, by changing a regularization parameter with which an impact is imposed on the plurality of first g factors by the first magnetic resonance data;
• and
• generate a magnetic resonance image related to the first parallel imaging process, by using the first magnetic resonance data and the adjusted plurality of first g factors.