Time of Flight Scatter Distribution Estimation in Positron Emission Tomography

摘要

Estimating time-of-flight (TOF) scatter distribution in a positron emission tomography (PET) system. Obtaining PET TOF projection data: PET random coincidence data and PET TOF prompt coincidence events data. Reducing measured TOF projection data to non-TOF projection data. Reconstructing, unbiased, the non-TOF projection date. Forward projecting unbiased reconstructed non-TOF projection data to estimate TOF trues distribution. Subtracting: The estimated TOF trues distribution and the measured random coincidence, from measured TOF prompt coincidence events.