Image display apparatus and recording medium

An image display apparatus comprising:

• a first radiographic image acquirer configured to acquire a first radiographic image obtained by a radiation detector that detects radiation having passed through an object to be examined, which includes a biopsy region, and that converts the detected radiation into a radiation image when the object to be examined is irradiated by a radiation source in a prescribed position, wherein said radiation source is movable in a prescribed direction with respect to the object to be examined;
• a second radiographic image acquirer configured to acquire a plurality of second radiographic images obtained by the radiation detector when the object to be examined is irradiated by the radiation source is in different positions than the prescribed position, wherein the prescribed position for acquiring the first radiographic image is used as a reference position for acquiring the plurality of second radiographic images,
• a position sensor sensing placement of the radiation source at a first acute angle from the prescribed position and at a second acute angle from the prescribed position, wherein an axis passing through the prescribed position is a line of symmetry for the first acute angle relative to the second acute angle, and the second radiographic image acquirer acquires a first one of the second radiographic images at the first acute angle and acquires a second one of the second radiographic images at the second acute angle;
• a first display controller for displaying the first radiographic image acquired by the first radiographic image acquirer on a first display unit;
• a pointing device for selecting the biopsy region of the object to be examined which is displayed on the first display unit;
• and
• a second display controller configured to display the second radiographic images acquired by the second radiographic image acquirer on a second display unit and, when the biopsy region is selected in the displayed first radiographic image by the pointing device, displaying, in the second radiographic images, respective guide lines passing through positions in the second radiographic images which correspond to a position of the biopsy region selected in the first radiographic image and extending parallel to the prescribed direction.