Title :
Rebinning errors in coincidence imaging due to depth of interaction
Author :
Ordonez, Caesar E. ; Matthews, Kenneth L., II ; Chang, Wei
Author_Institution :
Dept. of Diagnostic Radiol., Rush-Presbyterian-St. Luke´´s Med. Center, Chicago, IL, USA
fDate :
8/1/2001 12:00:00 AM
Abstract :
In positron emission tomography, uncertainties in-or lack of knowledge of-depths of interaction lead to errors in the assignment of position of coincidence events. This paper examines analytically the dependence of these errors on depth of interaction. Here derived are expressions that relate rebinning errors to the uncertainties in the measurement of interaction positions including depth of interaction. The results confirm the intuitive notion that rebinning errors are minimized when depth of interaction is measured at least as well as the transverse position
Keywords :
measurement errors; positron emission tomography; PET; coincidence events position assignment; coincidence imaging; interaction depth; measurement uncertainties; medical diagnostic imaging; nuclear medicine; transverse position; Biomedical imaging; Gamma ray detection; Gamma ray detectors; Geometry; Image analysis; Measurement uncertainty; Medical diagnostic imaging; Position measurement; Positron emission tomography; Spatial resolution;
Journal_Title :
Nuclear Science, IEEE Transactions on
