Correction method for quantification accuracy improvement in list mode reconstruction
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United States of America Patent
Stats
-
Aug 30, 2022
Grant Date -
Nov 19, 2020
app pub date -
Jan 30, 2019
filing date -
Jan 30, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A non-transitory computer-readable medium stores instructions readable and executable by a workstation (18) including at least one electronic processor (20) to perform an image reconstruction method (100) to reconstruct list mode data acquired over a frame acquisition time using a plurality of radiation detectors (17) in which the events of the list mode data is timestamped. The method includes: for the sub-frame bins of a plurality of sub-frame bins into which the frame acquisition time is divided, determining a sub-frame singles rates map for the plurality of radiation detectors from the list mode data whose time stamps reside in the sub-frame bin; determining a singles rate for the singles events of the list mode data using the sub-frame singles rates maps wherein the singles rates for the singles events are determined at a temporal resolution that is finer than the frame acquisition time; determining correction factors for the list mode data using the determined singles rates for the singles events of the list mode data; and reconstructing the list mode data of the frame acquisition time using the determined correction factors to generate a reconstructed image for the frame acquisition time.
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International Classification(s)
- 2019 Application Filing Year
- G01T Class
- 594 Applications Filed
- 441 Patents Issued To-Date
- 74.25 % Issued To-Date
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- G01T Class
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