Provided are a medical image generating system, a medical image generating method, and a medical image generating program that enable the easy recognition of the imaging timing of an image and the injection timing of a contrast agent. The medical image generating system is equipped with: a cross-sectional image acquisition unit that associates, with cross-sectional images of a subject, image management information for managing the cross-sectional images, and acquires cross-sectional images； an injection information acquisition unit that acquires contrast agent injection information pertaining to the contrast agent； an injection condition image generating unit that generates, on the basis of the contrast agent injection information, an injection condition image indicating the injection condition of the contrast agent； an association construction unit that associates the contrast agent injection information to the cross-sectional images on the basis of the contrast agent injection information and the image management information； and an output unit that outputs cross-sectional images and that superposes and outputs the contrast agent injection information, which is associated with the cross-sectional images, the injection condition image, which is generated on the basis of the contrast agent injection information, and the image management information, which is associated with the cross-sectional images.L'invention concerne un système, un procédé et un programme de génération d'images médicales, qui permettent de reconnaître facilement le moment de prise d'une image et le moment d'injection d'un agent de contraste. Ledit système de génération d'images médicales est équipé d'une unité d'acquisition d'images en coupe transversale qui associe aux images en coupe transversale d'un sujet, des informations de gestion d'images pour gérer les images en coupe transversale, et qui acquiert des images en coupe transversale, une unité d'acquisition d'informations d'injection qui a
