Fig. 3From: Significant value of 18F-FDG-PET/CT in diagnosing small cervical lymph node metastases in patients with nasopharyngeal carcinoma treated with intensity-modulated radiotherapyROC curve analysis comparing MRI-determined and PET/CT-determined overall stage for a OS, b DMFS, and c DFS. ROC Receiver operating characteristic, MRI magnetic resonance imaging, PET/CT positron emission tomography/computed tomography, OS overall survival, DMFS distant metastasis-free survival, DFS disease-free survivalBack to article page