System and method for recording a positron emission tomography image data set

A non-transitory computer-readable storage medium with an executable program stored thereon, that when executed, instructs a processor to perform a method for recording a positron emission tomography (PET) image data set of an overall recording area of a patient, the method comprising:

• using a magnetic resonance PET device, simultaneously recording PET raw data, magnetic resonance data of corresponding slices of the patient currently located within a field of view of the magnetic resonance PET device, and movement status information relating to one of a plurality of cyclical movements of the patient, the overall recording area of the patient exceeding a size of the field of view of the magnetic resonance PET device, wherein the overall recording area for recording the PET raw data is moved continuously at a constant movement speed through the field of view;
• assigning a movement status class, based on the movement status information, to the PET raw data and the magnetic resonance data associated with each of the plurality of cyclical movements;
• based on the magnetic resonance data assigned to the different movement status classes:
• determining attenuation maps of the patient for each of the different movement status classes, and
• applying the attenuation maps to the PET raw data assigned to the corresponding one of the different movement status classes;
• and
• reconstructing the PET image data set from the PET raw data based on at least one of the attenuation maps of the overall recording area.

A magnetic resonance positron emission tomography (PET) device for recording a PET image data set of an overall recording area of a patient, the device comprising:

• a scanner;
• and
• a controller in communication with the scanner, and configured to:
• control the scanner to simultaneously record PET raw data, magnetic resonance data of corresponding slices of a patient currently located within a field of view of the magnetic resonance PET device, and movement status information relating to one of a plurality of cyclical movements of the patient, the overall recording area of the patient exceeding a size of the field of view of the magnetic resonance PET device, wherein the overall recording area for recording the PET raw data is moved continuously at a constant movement speed through the field of view;
• assign a movement status class, based on the movement status information, to the PET raw data and the magnetic resonance data associated with each of the plurality of cyclical movements;
• based on the magnetic resonance data assigned to the different movement status classes:
• determine attenuation maps of the patient for each of the different movement status classes, and
• apply the attenuation maps to the PET raw data assigned to the corresponding one of the different movement status classes;
• and
• reconstruct the PET image data set from the PET raw data based on at least one of the attenuation maps of the overall recording area.