EFFECT OF SCATTER FROM RADIOACTIVITY OUTSIDE OF THE FIELD-OF-VIEW IN 3D PET

Authors
SOSSI V BARNEY JS HARRISON R RUTH TJ
Citation
V. Sossi et al., EFFECT OF SCATTER FROM RADIOACTIVITY OUTSIDE OF THE FIELD-OF-VIEW IN 3D PET, IEEE transactions on nuclear science, 42(4), 1995, pp. 1157-1161
Citations number
6
Categorie Soggetti
Nuclear Sciences & Tecnology","Engineering, Eletrical & Electronic
Journal title
IEEE transactions on nuclear science → ACNP
ISSN journal
00189499
Volume
42
Issue
4
Year of publication
1995
Part
1
Pages
1157 - 1161
Database
ISI
SICI code
0018-9499(1995)42:4<1157:EOSFRO>2.0.ZU;2-F
Abstract
The contribution of the scattered events originating from Radioactivit y Outside the tomograph Field of View (ROFOV) is treated differently b y different scatter correction algorithms. Using measured data we have evaluated the amount of scatter originating from ROFOV, its axial and transaxial distribution in two energy windows for direct and a subset of oblique planes in 3D PET. Nonuniform distributions were observed w ith the total contribution found to be non negligible when the amount of ROFOV was comparable to the radioactivity in the Field of View (FOV ).