An apparatus is disclosed for combined magnetic resonance tomography and positron emission tomography imaging which is designed for recording PET image data of a person under examination from an examination area. In at least one embodiment, the apparatus includes a scanning unit, embodied to scan a prespecified area of the person under examination and based on the scanning, to determine a contour of the person under examination for the prespecified area； and a processing unit, embodied, based on the contour determined, to carry out an absorption correction of PET data which has been recorded from the prespecified area of the person under examination. A method is also disclosed.
