Open AccessComparison of PSF and Non PSF BLOB based reconstructed image in Time-of-Flight PET/CT
Author(s) -
Manish K. Vishwakarma,
Shashwat Verma,
Satyawati Deswal
Publication year - 2021
Publication title -
international journal of pharmaceutical and bio-medical science
Language(s) - English
Resource type - Journals
eISSN - 2767-830X
pISSN - 2767-827X
DOI - 10.47191/ijpbms/v1-i8-03
Subject(s) - point spread function , image quality , iterative reconstruction , regularization (linguistics) , artificial intelligence , computer science , nuclear medicine , medicine , image (mathematics)
Hybrid PET/CT imaging with the use of 18F FDG is a widely used imaging technique with major indications in oncology for staging, re-staging and monitoring response to therapy. There is a major issue of partial volume effect in PET images which affects image quality as well as quantitative accuracy in small lesions. Multiple attempts have been made to resolve these issues. The aim of our study was to look into impact of Point‐spread-function (PSF) on reconstructed attenuation corrected (AC) images of PET/CT and to find out best combination of the number of PSF iterations with regularization level while applying PSF.