[Problem] To enable instantaneous confirmation of whether or not targeting of a lesion by a stereobiopsy device or the like has been performed correctly and improve diagnostic efficiency. [Solution] Two radiographs are acquired by irradiating radiation on the subject from two imaging directions that form a first imaging angle, and two radiographs are acquired for two imaging directions that form a second imaging angle, which differs from the first imaging angle. The radiographs of the first imaging angle are displayed as two-dimensional images while the radiographs of the second imaging angle are displayed as a stereo image. Specification of a certain position in the radiographs of the first imaging angle that are displayed as two-dimensional images, is accepted and position information acquired. The acquired position information in the radiographs of the first imaging angle is projected into the radiographs from the second imaging angle based on said position information and three-dimensional position information is acquired. Based on the three-dimensional position information, markers are displayed on the radiographs of the second imaging angle, which are displayed as a stereo image.La présente invention permet davoir la confirmation immédiate que le ciblage dune lésion a bien été correctement réalisé par un dispositif de biopsie stéréotaxique ou équivalent et daméliorer lefficacité du diagnostic. Pour ce faire, on procède à lacquisition de deux radiographies par émission dun rayonnement en direction du sujet depuis deux directions dimagerie formant un premier angle dimagerie, puis à lacquisition de deux radiographies depuis deux directions dimagerie formant un second angle dimagerie, différent du premier. Les radiographies caractérisées par le premier angle dimagerie sont affichées sous la forme dimages en deux dimensions, tandis que les radiographies caractérisées par le second angle dimagerie sont affichées sous la forme dune image stéréoscopique. Lidentificati
