Fig. 1From: 18F-FDG-PET/CT can be used to predict distant metastasis in hypopharyngeal squamous cell carcinomaReceiver operating characteristic (ROC) curve analysis of locoregional recurrence (LR) and distant metastasis prediction according to the pretherapeutic SUVmax of the primary tumor. A ROC curve for LR showing a lack of significant correlation [area under the curve (AUC) = 0.487] (95% CI = 0.371–0.604, P = 0.837). B ROC curve for distant metastasis. The area under the ROC curve was 0.709 (95% CI = 0.618–0.800, P = 0.001), and 13.9 was determined as the best potential cutoff value based on the Youden index. The sensitivity and specificity for an SUVmax of 13.9 were 93.5% and 51.5%, respectivelyBack to article page