2023
DOI: 10.1109/trpms.2022.3227576
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Inter-Pass Motion Correction for Whole-Body Dynamic PET and Parametric Imaging

Abstract: Whole-body dynamic FDG-PET imaging through continuous-bed-motion (CBM) mode multi-pass acquisition protocol is a promising metabolism measurement. However, interpass misalignment originating from body movement could degrade parametric quantification. We aim to apply a non-rigid registration method for inter-pass motion correction in wholebody dynamic PET. 27 subjects underwent a 90-min whole-body FDG CBM PET scan on a Biograph mCT (Siemens Healthineers), acquiring 9 over-the-heart single-bed passes and subsequ… Show more

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Cited by 5 publications
(1 citation statement)
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References 58 publications
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“…However, the inherent drawback from a longer axial acquisition would be multiple motion sources that have unique impact in different regions of the body. Periodic patient movements in each PET bed during these acquisitions can be mitigated with gating, however would have trouble with irregular body motions leading to smearing and partial volume effects (68,70). A mixed approach using motion-tracking hardware or other imaging modalities along with simple datadriven techniques such as registration can be used to address motion.…”
Section: Applications and Challenges In Parametric Dynamic Whole-body...mentioning
confidence: 99%
“…However, the inherent drawback from a longer axial acquisition would be multiple motion sources that have unique impact in different regions of the body. Periodic patient movements in each PET bed during these acquisitions can be mitigated with gating, however would have trouble with irregular body motions leading to smearing and partial volume effects (68,70). A mixed approach using motion-tracking hardware or other imaging modalities along with simple datadriven techniques such as registration can be used to address motion.…”
Section: Applications and Challenges In Parametric Dynamic Whole-body...mentioning
confidence: 99%