Evaluation method, program, and evaluation system

An evaluation system comprising an arithmetic circuit configured to perform:

• obtaining image information on a sectional image including a target section image representing a testis of an organism, the sectional image being generated by use of magnetic resonance of hydrogen atoms using a magnetic resonance imaging (MRI) apparatus;
• obtaining concentration information on a creatine concentration in the testis of the organism, the creatine concentration being measured by use of magnetic resonance based on chemical exchange saturation transfer (CEST) using the MRI apparatus;
• generating an evaluation image representing a distribution of evaluation results of a testicular function for each of a plurality of portions of the target section image based on the concentration information;
• generating a synthesized image by replacing (i) the target section image representing the testis of the organism in the sectional image with (ii) the evaluation image representing the distribution of evaluation results of the testicular function for each of the plurality of portions of the target section image;
• and
• displaying the synthesized image on a display terminal,
• wherein the obtaining the image information includes:
• obtaining a plurality of MRI images of the testis of the organism at a regular interval along a predetermined direction;
• determining a first MRI image from among the plurality of MRI images, the first MRI image having a largest sectional area of the target section image from among the plurality of MRI images;
• and
• obtaining a first CEST-MRI image corresponding to the first MRI image,
• wherein the image information includes information on the first MRI image, and
• wherein the concentration information includes first information on the first CEST-MRI image relating to creatine of the organism as information representing the creatine concentration in the testis of the organism.