A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Sinogram-based motion correction of PET images using optical motion tracking system and list-mode data acquisition
Tekijät: Woo SK, Watabe H, Choi Y, Kim KM, Park CC, Bloomfield PM, Iida H
Kustantaja: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Julkaisuvuosi: 2004
Journal: IEEE Transactions on Nuclear Science
Tietokannassa oleva lehden nimi: IEEE TRANSACTIONS ON NUCLEAR SCIENCE
Lehden akronyymi: IEEE T NUCL SCI
Vuosikerta: 51
Numero: 3
Aloitussivu: 782
Lopetussivu: 788
Sivujen määrä: 7
ISSN: 0018-9499
DOI: https://doi.org/10.1109/TNS.2004.829786
Tiivistelmä
Motion of the head during brain positron emission tomography (PET) acquisitions has been identified as a source of artifact in the reconstructed image. A number of techniques have been proposed to correct for this motion artifact, but they are unable to correct for a motion during an acquisition. The aim of this study was to develop a sinogram-based motion correction (SBMC) technique to correct directly the head motion during a PET scan using a motion tracking system and list-mode data acquisition. This method uses a rebinning procedure whereby the lines of response (LOR) are geometrically transformed according to the current values of six-dimensional motion data. A -Michelogram was recomposed using the rebinned LOR, and the motion-corrected sinogram was generated. In the motion corrected image, the blurring artifact due to the motion was reduced by the SBMC technique. This technique was applied to actual PET data acquired in the list-mode, and demonstrated the potential for real-time motion correction of head movements during a PET acquisition.
Motion of the head during brain positron emission tomography (PET) acquisitions has been identified as a source of artifact in the reconstructed image. A number of techniques have been proposed to correct for this motion artifact, but they are unable to correct for a motion during an acquisition. The aim of this study was to develop a sinogram-based motion correction (SBMC) technique to correct directly the head motion during a PET scan using a motion tracking system and list-mode data acquisition. This method uses a rebinning procedure whereby the lines of response (LOR) are geometrically transformed according to the current values of six-dimensional motion data. A -Michelogram was recomposed using the rebinned LOR, and the motion-corrected sinogram was generated. In the motion corrected image, the blurring artifact due to the motion was reduced by the SBMC technique. This technique was applied to actual PET data acquired in the list-mode, and demonstrated the potential for real-time motion correction of head movements during a PET acquisition.
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