PROBLEM TO BE SOLVED: To more appropriately discriminate an area that has been observed from an area that has not been observed yet in reading an image.SOLUTION: An image diagnosis support apparatus displays a tomogram image acquired from a three-dimensional medical image on a display screen, and detects a visual line position of a user in the display screen. The image diagnosis support apparatus determines an area that has been observed in the tomogram image on the basis of the detected visual line position, and discriminates the area that has been observed in the three-dimensional medical image on the basis of the area that is determined as having been observed in the tomogram image.【課題】読影時における観察済の領域と未観察の領域をより適切に識別することを可能とする。【解決手段】画像診断支援装置は、３次元医用画像から得られる断層像を表示画面に表示し、表示画面におけるユーザの視線位置を検出する。画像診断支援装置は、検出された視線位置に基づいて、断層像における観察済みの領域を判定し、断層像における観察済みと判定された領域に基づいて、３次元医用画像における観察済みの領域を識別する。【選択図】図１
