Method for evaluating image data records

A method for evaluating image data records recorded using a combination image recording facility configured to record magnetic resonance image data and positron emission tomography image data in a shared coordinate system so as to determine position and extent of a target structure in a target area of a human body, the method comprising:

• recording a PET image data record, a functional magnetic resonance image data record and a morphological magnetic resonance image data record, the spatial resolution of which is better than that of the functional magnetic resonance image data record, of the target area using the combination image recording facility;
• localizing a center of the target structure in the PET image data record;
• transmitting the localized center to the functional magnetic resonance image data record;
• segmenting, based on localized the center, the target structure in the functional magnetic resonance image data record;
• and
• transmitting the segmentation of the target structure in the functional magnetic resonance image data record to the morphological magnetic resonance image data record.