PROBLEM TO BE SOLVED: To accurately calculate an evaluation value of cardiac function or an evaluation value of water content from a chest dynamic image. According to a dynamic image analysis system, a control unit (21) of a console (2) extracts a heart region or a lung field region from a chest dynamic image obtained by radiographing the dynamics of the chest, and the extracted heart. The evaluation value of the cardiac function or the evaluation value of the water content is calculated based on the area, diameter, or the pixel value of the area or the pixel value of the lung field area, and the calculated evaluation value of the heart function or the evaluation value of the water content is displayed on the display unit. 24 is displayed. [Selection diagram] Figure 4【課題】胸部動態画像から心機能の評価値又は水分量の評価値を精度良く算出できるようにする。【解決手段】動態画像解析システム１００によれば、コンソール２の制御部２１は、胸部の動態を放射線撮影することにより得られた胸部動態画像から心臓領域又は肺野領域を抽出し、抽出した心臓領域の面積、径、若しくは画素値又は肺野領域の画素値に基づいて心機能の評価値又は水分量の評価値を算出し、算出した心機能の評価値又は水分量の評価値を表示部２４に表示させる。【選択図】図４
