A method is disclosed for displaying image data of a large intestine of a patient on the basis of tomographic examination data. In at least one embodiment, the method includes scanning of the patient, after ingestion of a contrast agent, in at least two differently aligned positions using a tomography system and generating a tomographic image data record for each position segmenting the large intestine in the tomographic data records detecting and marking regions of the segmented large intestine with adjacent remaining stool in the intestine (covered regions) registering the segmented large intestine in the at least two tomographic image data records displaying a tomographic display of the segmented large intestine including markings of the covered regions and displaying a selection menu in which tomographic displays of the segmented large intestine in the at least two differently aligned positions of the patient, including a marking of the covered regions, can be selected alternatively.
