Abstract: Example embodiments relate to simulating 2D X-ray images from 3D CT data. A user can access a repository of CT data of a patient's anatomy 2 by using a computer network system. The CT data has been obtained by a CT scanning of the patient 1. Firstly, the user retrieves the CT image data 3 and a 3D image is generated 4. Secondly, the user may orient the CT image in any orientation desirable with respect to a virtual X-ray source and a virtual image plane. Thirdly, a 2D X-ray image is simulated 6 from the chosen viewpoint and shown to the user.

Abstract: The invention provides direct and persistent access to digital data, in particular to digital medical data. Based upon the identity of the user 10, a list of relevant medical data is presented to the user 12 by accessing a repository of attributes relating to the digital medical data. In order to generate the list a user profile is consulted 11. The user profile dictates the items within the list on the basis of a rule based comparison between the user profile and the attributes. The user selects from the list the medical data which should be presented, and the requested medical data is subsequently presented to the user 15.