SIMILAR CASE SEARCH DEVICE, SIMILAR CASE SEARCH METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

摘要

Provided is a similar case search device which rapidly searches for an appropriate similar case on the basis of plural ROIs.;An individual similarity calculation unit sets the ROIs and plural case lesions in a case image so as to be in one-to-one correspondence with each other, compares the feature amounts of the ROIs and the feature amounts of the case lesions which correspond to each other, and calculates an individual similarity for each ROI. A total similarity calculation unit calculates a total similarity for only combinations of completely different types, which are combinations of plural ROIs and plural different types of case lesions in the same case, on the basis of plural individual similarities calculated for each of the plural ROIs. A similar case search unit searches for a similar case on the basis of the total similarities corresponding to the combinations of completely different types.

主权项

1. A similar case search device that searches for a similar case which is similar to an examination image used to diagnose a patient from a case database in which a plurality of cases, each of which includes one or more case images, are registered, comprising:
a feature amount acquisition unit that acquires feature amounts of a plurality of regions of interest, each of which is designated so as to include one or more different target lesions that are lesions in the examination images, in examination data including one or more examination images; an individual similarity calculation unit that sets the regions of interest and a plurality of case lesions in the case image so as to be in one-to-one correspondence with each other, compares the feature amounts of the regions of interest and feature amounts of the case lesions which correspond to each other, and calculates an individual similarity for each region of interest; a total similarity calculation unit that calculates a total similarity for only combinations of completely different types, which are combinations of the plurality of regions of interest and a plurality of different types of case lesions in the same case, on the basis of a plurality of individual similarities calculated for each of the plurality of regions of interest; and a similar case search unit that searches for the similar case on the basis of the total similarities corresponding to the combinations of completely different types.