Patent ID: 8467495

Claim:
A radiographic image capturing apparatus comprising: a radiation source configured to apply radiation to an object of a subject to be examined; a radiation detector configured to detect the radiation that has passed through the object and configured to convert the detected radiation into a radiographic image; a collimator configured to delimit an irradiated field of the radiation with respect to the radiation detector, the collimator being disposed between the radiation source and the object; a biopsy region positional information calculating unit configured to calculate a three-dimensional position of a biopsy region in the object based on two radiographic images, which are acquired by the radiation detector in a stereographic image capturing process, in which the radiation source disposed at least at two angles applies the radiation to the object; an irradiated field calculating unit configured to calculate a new irradiated field covering the biopsy region based on the calculated three-dimensional position of the biopsy region and the two angles; a collimator control unit configured to control the collimator to change the irradiated field of the radiation in a next stereographic image capturing process to the new irradiated field; and an irradiated field calculation control unit configured to selectively enable the irradiated field calculating unit to calculate the new irradiated field or disable the irradiated field calculating unit from calculating the new irradiated field.