Fig. 4From: Predictive value of CT and 18F-FDG PET/CT features on spread through air space in lung adenocarcinomaReceiver operating characteristic (ROC) curves showed that the mean area under the curve (AUC) was greater in the model that used the SUVmax of 18F-FDG PET/CT than in the model that used the maximum tumor diameter for predicting spread through air spaces (0.82 vs. 0.68). Note: ROC, receiver operating characteristic; SUV, standardized uptake valueBack to article page