1. A method for determining suitability of various contrast agents for an imaging examination of a patient, the method comprising: taking a tissue sample from the patient; dividing the tissue sample into a plurality of individual samples; adding a contrast agent, which binds to a particular target structure in the tissue, to each individual sample, the contrast agent being selected from the various contrast agents; and examining the individual samples to determine suitability of the various contrast agents for the imaging examination of the patient.