Open AccessImproving the off-center resolution in position emission tomography using depth-of-interaction information
Author(s) -
Huafeng Liu
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.5186
Subject(s) - detector , parallax , resolution (logic) , optics , image resolution , tomography , physics , center (category theory) , computer science , artificial intelligence , chemistry , astronomy , crystallography
It is well known that if the depth of interaction(DOI) within the crystal can be measured, the parallax error can be corrected and the resolution should be uniform throughout the field of view. We have investigated the spatial resolution of off-center sources in a positron emission tomography (PET) ring detector configuration using our proposed DOI detector. It is confirmed that the depth-encoding detector provides better spatial resolution for the oblique incidence of gamma-rays.