A diagnostic imaging arrangement comprises a magnetic resonance examination (1) system to acquire magnetic resonance signals and an emission tomography system (2) to acquire nuclear decay signals. An analysis module (4) is provided to derive motion correction(s) from the magnetic resonance signals. A reconstruction module (5) reconstructs a motion corrected emission tomographic image from the nuclear decay signals on the basis of the motion correction. Also a therapeutic arrangement is disclosed with a diagnostic imaging arrangement and a therapy module, with a system controller is further coupled to the therapy module and has the function to control the therapy module on the basis of image information generated by the diagnostic imaging system.
