RT Journal Article SR Electronic T1 Need for Standardization of 18F-FDG PET/CT for Treatment Response Assessments JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 93S OP 100S DO 10.2967/jnumed.110.085662 VO 52 IS Supplement 2 A1 Boellaard, Ronald YR 2011 UL http://jnm.snmjournals.org/content/52/Supplement_2/93S.abstract AB Many factors affect standardized uptake values (SUVs) in 18F-FDG PET/CT. The use of the SUV from a single PET scan in multicenter studies requires the standardization of 18F-FDG PET/CT procedures. In the context of treatment response assessments (repeated PET scans), many factors may seem to have minor effects on percentage changes in SUVs, provided that imaging procedures are executed in a consistent manner for each subject. However, the use of 18F-FDG PET/CT in a nonstandardized manner will result in unknown biases and reproducibilities of SUVs and SUV-based response measures. This article provides an overview of the need for standardization in relation to the specific use of SUVs and SUV changes in studies of treatment response assessments.