A console includes: a display unit which plays back a dynamic image formed of a plurality of frame images to display according to operation of an operator； and a learning unit which, when detecting that operation of possibly expressing interest is performed by the operator during playback of the dynamic image, performs statistical processing on a value of an index regarding a dynamic state of a site to be examined and/or change in time of the value of the index in a frame image displayed on the display unit at that time to learn appearance frequency of the value of the index and/or the pattern of the change in time of the value of the index.
