US 12,406,409 B2
System and method for motion compensation for cardiac PET imaging
Matthew Gilbert Spangler-Bickell, Clovis, CA (US); Kuan-Hao Su, Brookfield, WI (US); Floribertus Philippus Martin Heukensfeldt Jansen, Ballston Lake, NY (US); and Timothy Wayne Deller, Brookfield, WI (US)
Assigned to GE Precision Healthcare LLC, Wauwatosa, WI (US)
Filed by GE Precision Healthcare LLC, Wauwatosa, WI (US)
Filed on Aug. 1, 2022, as Appl. No. 17/878,297.
Prior Publication US 2024/0037813 A1, Feb. 1, 2024
Int. Cl. G06T 11/00 (2006.01); A61B 6/00 (2024.01); A61B 6/03 (2006.01); A61B 6/50 (2024.01); G06T 3/147 (2024.01)
CPC G06T 11/005 (2013.01) [A61B 6/037 (2013.01); A61B 6/503 (2013.01); A61B 6/5217 (2013.01); A61B 6/5264 (2013.01); A61B 6/5288 (2013.01); G06T 3/147 (2024.01); G06T 11/008 (2013.01); G06T 2210/41 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A computer-implemented method for motion compensation of medical imaging data, comprising:
estimating, via a processor, non-periodic motion of a myocardium of a heart due to respiration and/or other body movements throughout a positron emission tomography (PET) scan based on list-mode emission data acquired during the PET scan of the heart of a subject; and
performing, via the processor, event-by-event motion-corrected list-mode reconstruction on the list-mode emission data to generate cardiac images with the non-periodic motion removed, wherein performing the event-by-event motion-corrected list-mode reconstruction on the list-mode emission data comprises performing cardiac-gated reconstruction on the list-mode emission data to generate cardiac-gated images with the non-periodic motion removed, wherein performing the event-by-event motion-corrected list mode cardiac-gated reconstruction comprises:
performing, via the processor, motion correction on each event of the list-mode emission data; and
performing, via the processor, cardiac-gated reconstruction on the motion-corrected list-mode emission data; and
wherein performing motion correction on each event comprises:
repositioning, via the processor, the endpoints of each event to account for motion at a corresponding time point; and
calculating, via the processor, motion-aware corrections.