Methods, devices and non-transitory machine readable storage mediums for displaying coronary arteries are provided. In one aspect, a method includes: obtaining a coronary artery model of the coronary arteries, obtaining values of one or more coronary artery parameters of the coronary artery model according to the coronary artery model, determining colours corresponding to the values of the one or more coronary artery parameters, and acquiring a pseudo-colour coronary artery model of the coronary arteries by displaying the coronary artery model with the determined colours.
