Systems and methods for positron emission tomography image reconstruction
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United States of America Patent
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Jun 23, 2020
Grant Date -
Apr 4, 2019
app pub date -
Sep 30, 2017
filing date -
Sep 30, 2017
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Abstract
The disclosure relates to PET imaging systems and methods. The systems may execute the methods to obtain an anatomical image of a subject acquired when the subject remains in a breath-hold status; obtain PET data of the subject, the PET data corresponding to a respiration signal with a plurality of respiratory phases of the subject, the respiratory phases including a first respiratory phase and a second respiratory phase; gate the PET data; reconstruct a plurality of gated PET images, the plurality of gated PET images including a first gated PET image corresponding to the first respiratory phase and a second gated PET image corresponding to the second respiratory phase; determine a first motion vector field between the first gated PET image and the second gated PET image; determine a second motion vector field between the anatomical image and the second gated PET image; and reconstruct an attenuation corrected PET image.
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