PROBLEM TO BE SOLVED: To provide a radiographic image capturing apparatus and a radiographic image capturing method which prevent a subject from being unduly exposed to radiation and accurately calculate the three-dimensional position of a biopsy region in an object to be examined by reliably performing a stereographic image capturing process on the biopsy region.SOLUTION: In a radiographic image capturing apparatus 12, a biopsy region positional information calculator 110 calculates a three-dimensional position of the biopsy region in the object 22 to be examined based on two radiographic images which are acquired in the stereographic image capturing process, an irradiated field calculator 126 calculates a new irradiated field covering the biopsy region based on the calculated three-dimensional position of the biopsy region and two angles at which a radiation source 26 is disposed in the stereographic image capturing process, and a collimator controller 98 controls a collimator 60 to change the irradiated field of the radiation to the new irradiated field in a next stereographic image capturing process.COPYRIGHT: (C)2011,JPO&INPIT【課題】被写体に対する無駄な被曝を回避すると共に、検査対象物中の生検部位に対するステレオ撮影を確実に行うことにより前記生検部位の三次元位置を精度よく算出する。【解決手段】放射線画像撮影装置12において、生検部位位置情報算出手段110は、ステレオ撮影により得られた2枚の放射線画像に基づいて検査対象物22内の生検部位の三次元位置を算出し、照射野算出手段126は、前記生検部位の三次元位置と、前記ステレオ撮影にて放射線源26が配置される2つの角度とに基づいて、前記生検部位に合わせた新たな照射野を算出し、コリメータ制御手段98は、次回のステレオ撮影での照射野を前記新たな照射野に変更するようにコリメータ60を制御する。【選択図】図4
