A method is disclosed for automatically determining a contrast agent injection protocol for a patient to be examined. An embodiment of the method includes provisioning a plurality of patient reference parameters, a plurality of contrast agent injection protocol parameters and a plurality of assignments of at least one given patient reference parameter with at least one given contrast agent injection protocol parameter； comparing of at least one patient parameter with the plurality of patient reference parameters, the patient parameter being based on patient information； selecting at least one patient reference parameter from the plurality of patient reference parameters based on the comparing； and determining at least one contrast agent injection protocol parameter from the plurality of contrast agent injection protocol parameters.
