A linear estimator for timing calibration in time-of-flight PET

Research output: Chapter in Book/Report/Conference proceedingConference paper

Abstract

We study the performance of a method for the timing calibration of a TOF scanner using arbitrary phantom or patient data. The method uses an initial non TOF reconstruction and estimates the timing offsets of the detectors by weighted least-squares fitting. Assuming bias-free and noise-free estimates of scatter and randoms, the method is shown to yield an unbiased estimate. In addition a theorem and numerical results show that this simple method is close to optimal
for the type of phantoms typically used for calibration.
Original languageEnglish
Title of host publicationProceedings 15th International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine
EditorsSamuel Matej, Scott D. Metzler
PublisherSPIE
Number of pages5
Volume11072
ISBN (Electronic)9781510628373
DOIs
Publication statusPublished - 28 May 2019
EventFully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine - Philadelphia, United States
Duration: 2 Jun 20196 Jun 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11072
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceFully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine
CountryUnited States
Period2/06/196/06/19

Keywords

  • Calibration
  • Positron tomography
  • Time of flight

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