PROBLEM TO BE SOLVED: To effectively utilize a result measured by a TI method.SOLUTION: A medical image processing apparatus according to the embodiment scans, with radiation, a subject that has received a first injection, to thereby acquire first density change information indicating the change of the density of the drug in the first injection in a region of interest of the subject and to acquire information about the volume of organs through which the drug passes before the drug reaches the region of interest. The medical image processing apparatus estimates at least one of second density change information indicating the change of the density of the drug in the second injection in the region of interest of the subject and a second injected amount of the drug in the second injection, on the basis of input data including a first injected amount of the drug in the first injection, the first density change information, and information about the volume.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2020,JPO&INPIT【課題】ＴＩ法により計測された結果を有効に活用すること。【解決手段】実施形態に係る医用画像処理装置は、第１の注入を受けた被検体に対して放射線を用いたスキャンを実行することで、前記第１の注入における薬剤の前記被検体の関心領域における濃度変化を表す第１の濃度変化情報を取得し、前記薬剤が前記関心領域に到達するまでに通過する臓器の体積に関する情報を取得する。医用画像処理装置は、前記第１の注入における前記薬剤の第１の注入量、前記第１の濃度変化情報、及び、前記体積に関する情報を含む入力データに基づいて、前記被検体に対する第２の注入において注入される薬剤の前記関心領域における濃度変化を表す第２の濃度変化情報、及び、前記第２の注入における薬剤の第２の注入量のうち、少なくともいずれかを推定する。【選択図】図４
