1. A system for generating an image, comprising: a first system for acquiring an image dataset from a subject; a second system for obtaining a video image of the subject; a unit for determining first position information comprising a position of the first system during acquisition of said image dataset and a position of the second system while obtaining said video image; a unit for obtaining second position information comprising a position of the image dataset and a position of the video image; and a computer for combining said image data and said video image in a combining operation selected from the group consisting of superimposition and fusion, using said first position information and said second position information.