PROBLEM TO BE SOLVED: To discriminate a number of reference substances larger than the number of types of energy by using data of plural types of energy. A medical processing apparatus according to an embodiment includes a processing unit. The processing unit, based on the first number of X-ray data sets corresponding to the first number of energies obtained by scanning the subject with X-rays, outputs a second number larger than the first number. A virtual monochromatic X-ray data set is generated, and a mixing amount or a mixing ratio of the second number of reference substances is estimated for each of a plurality of positions in the subject based on the second number of virtual monochromatic X-ray data sets. .. [Selection diagram] Figure 1【課題】複数種類のエネルギーのデータを用いて、エネルギーの種類の数よりも多い数の基準物質を弁別すること。【解決手段】実施形態の医用処理装置は、処理部を備える。処理部は、被検体をＸ線でスキャンして得られた、第１の数のエネルギーに対応する第１の数のＸ線データセットに基づいて、第１の数より大きい第２の数の仮想単色Ｘ線データセットを生成し、第２の数の仮想単色Ｘ線データセットに基づいて、被検体内の複数位置それぞれについて、第２の数の基準物質の混合量又は混合割合を推定する。【選択図】図１
