Patent ID: 11874411
Assignee: SIEMENS MEDICAL SOLUTIONS USA, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  A | IPC A  G

Claim 0:
1. A method for reconstructing in positron emission tomography with partially known attenuation, the method comprising:
acquiring, with a computed tomography (CT) scanner, first attenuation information for a CT volume of a patient, the first attenuation information comprising the partially known attenuation;
acquiring, with a positron emission tomography (PET) scanner having a plurality of detectors, time-of-flight data along lines-of-response from emissions, the first attenuation information available for a first subset of the lines-of-response and unavailable for at least parts of the lines of response of a second subset of the lines-of-response;
generating, by a machine-trained neural network, second attenuation information for the at least parts of the lines of response of the second subset;
reconstructing an image object of activity in the patient from the time-of-flight data including the lines of response of the first and second subsets, the reconstructing being a function of the first attenuation information along the lines of response of the first subset and the generated second attenuation information along the lines of response of the second subset; and
displaying an image of the reconstructed image object.