1. A blood flow dynamic analysis apparatus configured to analyze a dynamic state of a blood flow of a subject using data about a plurality of frame images acquired from the subject with a contrast agent injected therein, the blood flow dynamic analysis apparatus comprising: a map creation device configured to create a plurality of maps each indicative of a characteristic amount related to the dynamic state of the contrast agent or the blood flow, based on the data about the plurality of frame images; an unaffected side detection device configured to detect an unaffected side of the subject from within each of the plurality of maps; and a display condition determination device configured to determine a display condition used when each of the plurality of maps is displayed, based on pixel values of pixels existing in the respective unaffected side in each of the plurality of maps.