PROBLEM TO BE SOLVED: To provide an apparatus of radiotherapy for determining whether to approve a treatment plan, and additionally, for determining whether to treat a patient with radiotherapy based on diagnostic information of the patient.SOLUTION: The apparatus has: a treatment-plan memory part 101 for previously storing the treatment plan including implementation conditions of the radiotherapy for the patient a diagnostic-information memory part 102 for previously storing the diagnostic information including findings and biochemical examination information of the patient an examination-result determining part 107 for referring the diagnostic information and determining whether the biochemical examination information of the patient exceeds a predetermined value and a report part 108 for informing a warning if the biochemical examination information exceeds the predetermined value.COPYRIGHT: (C)2011,JPO&INPIT【課題】治療計画の承認の有無の判断に加え、患者の診断情報を基にその患者への放射線治療の可否を判断する放射線治療装置を提供する。【解決手段】患者の放射線治療の実施条件を含む治療計画を予め記憶しておく治療計画記憶部101と、患者の所見及び患者の生化学検査情報を含む診断情報を予め記憶しておく診断情報記憶部102と、診断情報を参照し、患者の生科学検査情報が所定値を超えているか否かを判定する検査結果判定部107と、生化学検査情報が所定値を超えている場合に警告を報知する報知部108と、を備える。【選択図】図1