An easy method for the evaluation of visual tumor heterogeneity of 18F-FDG PET/CT using 10-step color scale: A correlative study in patients with lung cancer.

OBJECTIVE The purpose of this study was to assess the correlation between visual assessment by the peritumoral halo layer (PHL) method and analysis with texture and intensity histogram metrics for evaluating tumor heterogeneity (TH) in fluorine-18-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) of patients with lung cancer. SUBJECTS AND METHODS We retrospectively reviewed the 64 patients with records of...