PROBLEM TO BE SOLVED: To provide a radiotherapy support system, an image generation method, and an image generation program which reduce burden on a patient and is capable of speedily and accurately positioning the patient during radiotherapy.SOLUTION: A radiotherapy support system comprises: an associating unit which associates the positions of bones and joints of a patient with the positions of respective portions of a human body model representing the body surface and inside of the patient； and an image generation unit which, on the basis of a result of association by the associating unit, generates an image in which the respective portions of the human body model have been moved in accordance with the positions of the bones and joints of the patient at the time of radiotherapy.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】放射線治療時において、患者の負担を減らすとともに、患者の位置決めを短時間かつ精度良く行うことが可能な放射線治療支援システム、画像生成方法および画像生成プログラムを提供する。【解決手段】放射線治療支援システムは、患者の骨格および関節の位置と、当該患者の体表面および内部を模した人体モデルの各部の位置とを対応づける対応づけ部と、対応づけ部による対応づけの結果に基づいて、放射線治療時の患者の骨格および関節の位置に合わせて人体モデルの各部を移動させた画像を生成する画像生成部とを備える。【選択図】図１
