Patent ID: 6980683
Filing Date: 2005-12-27
Classification: A61B,G01T

Abstract:
1. A device for on-line correction of patient motion in three-dimensional positron emission tomography wherein a positron emission tomograph device is used to collect coincidence event and position data, said device comprising: first processing circuitry for calculating an event correction factor (ECF) for said coincidence event and position data; second processing circuitry for converting said coincidence event and position data into (x,y,z) pair content; third processing circuitry for transforming said (x,y,z) pair into an (x′,y′,z′) pair; fourth processing circuitry for converting said (x′,y′,z′) pair into a bin address; and fifth processing circuitry for performing on-line weighted histogramming on said bin address using said ECF, said fifth processing circuitry outputting a normalized projection data set.