A method for controlling an evaluation system for medical images of a patient, wherein medical images of the patient acquired at different time points are stored in an image database, wherein, upon reception of a command from a user associated with a time-dependent evaluation command including at least one evaluation parameter describing an evaluation to be performed and identification information describing the patient, the method comprising:
- retrieving medical images of the patient, fulfilling a relevancy criterion depending on the at least one evaluation parameter and acquired at different time points, from the image database;
- registering the medical images retrieved, to other of the medical images retrieved, in at least one registration process;
- deriving a composite evaluation image data set, including a time series of evaluation images, from the registered retrieved images;
- and
- outputting the composite evaluation image data set derived to the user.