Magnetic resonance imaging device, diagnostic assistance system, and program

Provided is a data analysis technique with which simple, highly accurate diagnostic assistance using MRS spectra obtained by MRS measurement is possible. Similarity is determined from the records of a previously created spectral database of respective diseases and from analysis data of a newly acquired unknown MRS spectrum, and candidate diseases are presented. In determining similarity, only data for which reliability indices of respective predetermined feature items satisfy predetermined conditions, out of the analysis data, is used. Also when the spectral database of respective diseases is being created, only data for which reliability indices of respective predetermined feature items satisfy predetermined conditions, out of analysis data of one or more definitively diagnosed MRS spectra, is used in the same manner.