Repeatability of ¹⁸F-FDG PET Radiomic Features in Cervical Cancer.

ABSTRACT: Knowledge of the intrinsic variability of radiomic features is essential to the proper interpretation of changes in these features over time. The primary aim of this study was to assess the test-retest repeatability of radiomic features extracted from ¹⁸F-FDG PET images of cervical tumors. The impact of different image preprocessing methods was also explored. Methods: Patients with cervical cancer underwent baseline and repeat ¹⁸F-FDG PET/CT imaging within 7 d. PET images were reconstructed using 2 methods: ordered-subset expectation maximization (PET_OSEM) or ordered-subset expectation maximization with point-spread function (PET_PSF). Tumors were segmented to produce whole-tumor volumes of interest (VOI_WT) and 40% isocontours (V

SUBMITTER: Crandall JP 

PROVIDER: S-EPMC8844259 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature