title: Enhancing Cardiac PET by Motion Correction Techniques.
abstract: Cardiac positron emission tomography (PET) images often contain errors due to cardiac, respiratory, and patient motion during relatively long image acquisition. Advanced motion compensation techniques may improve PET spatial resolution, eliminate potential artifacts, and ultimately improve the research and clinical capabilities of PET.
  
  
  
  Combined cardiac and respiratory gating has only recently been implemented in clinical PET systems. Considering that the gated image bins contain much lower counts than the original PET data, they need to be summed after correcting for motion, forming motion-corrected, high-count image volume. Furthermore, automated image registration techniques can be used to correct for motion between CT attenuation scan and PET acquisition. While motion correction methods are not yet widely used in clinical practice, approaches including dual-gated non-rigid motion correction and the incorporation of motion correction information into the reconstruction process have the potential to markedly improve cardiac PET imaging.
authors.affiliation: Cedars-Sinai Medical Center, 8700 Beverly Blvd Taper A238, Los Angeles, CA, 90048, USA.
authors.forename: Mathieu
authors.initials: M
authors.lastname: Rubeaux
authors.affiliation: Cedars-Sinai Medical Center, 8700 Beverly Blvd Taper A238, Los Angeles, CA, 90048, USA.|Centre for Cardiovascular Science, University of Edinburgh, 49 Little France Crescent, Edinburgh EH16 4SB, Scotland, UK.
authors.forename: Mhairi K
authors.initials: MK
authors.lastname: Doris
authors.affiliation: Department of Radiology, University of Washington, Old Fisheries Center, Room 222, 4000 15th Avenue NE, Box 357987, Seattle, WA, 98195-7987, USA.
authors.forename: Adam
authors.initials: A
authors.lastname: Alessio
authors.affiliation: Cedars-Sinai Medical Center, 8700 Beverly Blvd Taper A238, Los Angeles, CA, 90048, USA. piotr.slomka@cshs.org.|David Geffen School of Medicine, University of California, Los Angeles, CA, USA. piotr.slomka@cshs.org.|Cedars-Sinai Medical Center, 8700 Beverly Blvd Ste. A047N, Los Angeles, CA, 90048, USA. piotr.slomka@cshs.org.
authors.forename: Piotr J
authors.initials: PJ
authors.lastname: Slomka
mesh_terms: D000465:Algorithms; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009038:Motion; D000072078:Positron Emission Tomography Computed Tomography / Q000379:methods*
keywords: Cardiac PET imaging; Coronary imaging; Gated PET; PET motion correction