Patent ID: 11918390
Assignee: GE PRECISION HEALTHCARE LLC
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A method for a medical imaging system, comprising:
acquiring emission data during a positron emission tomography (PET) scan of a patient;
reconstructing a series of live PET images while acquiring the emission data;
tracking motion of the patient during the acquiring by determining a per-voxel variation for selected voxels in a current live PET image of the series of live PET images; and
outputting an indication of patient motion based on the per-voxel variation for the selected voxels in each live PET image,
wherein tracking the motion of the patient during the acquiring by determining the per-voxel variation for the selected voxels in the current live PET image of the series of live PET images comprises:
generating a mean image of a quiescent period during the acquiring;
generating a weighting image of the quiescent period; and
determining the per-voxel variation for the selected voxels in the current live PET image by using the mean image and the weighting image to remove a background noise.