Measurement Repeatability of ¹⁸F-FDG PET/CT Versus ¹⁸F-FDG PET/MRI in Solid Tumors of the Pelvis.

ABSTRACT: Knowledge of the within-subject variability of ¹⁸F-FDG PET/MRI measurements is necessary for proper interpretation of quantitative PET or MRI metrics in the context of therapeutic efficacy assessments with integrated PET/MRI scanners. The goal of this study was to determine the test-retest repeatability of these metrics on PET/MRI, with comparison to similar metrics acquired by PET/CT. Methods: This prospective study enrolled subjects with pathology-proven pelvic malignancies. Baseline imaging consisted of PET/CT immediately followed by PET/MRI, using a single 370-MBq ¹⁸F-FDG dose. Repeat imaging was performed within 7 d using an identical imaging protocol, with no oncologic therapy between sessions. PET imaging on both scanners consisted of a list-mode acquisi

SUBMITTER: Fraum TJ 

PROVIDER: S-EPMC6681694 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature