FIELD: physics.
SUBSTANCE: diagnostic imaging apparatus comprises a magnetic resonance examination system to acquire magnetic resonance signals, an emission tomography system to acquire nuclear decay signals, an analysis module to derive motion correction(s) from the magnetic resonance signals, as well as a reconstruction module which reconstructs a motion corrected emission tomographic image from the nuclear decay signals based on said motion correction(s), a system controller connected to the magnetic resonance examination system and the emission tomography system, wherein the system controller has the function of controlling acquisition of magnetic resonance signals by the magnetic resonance examination system, as well as acquisition of nuclear decay signals by the emission tomography system; the system controller further has a function for recording the time for acquisition of magnetic resonance signals and nuclear decay signals, wherein the magnetic resonance signals for deriving motion correction and nuclear decay signals for reconstruction of the emission tomographic image have the same acquisition time.
EFFECT: providing positron emission tomography in which there is better correction of motion artefacts without the need for high computational expenses.
7 cl, 5 dwg
