Fig. 4From: Local relapse of nasopharyngeal cancer and Voxel-based analysis of FMISO uptake using PET with semiconductor detectorsLogistic regression analysis of the relationship between the TMR in each voxel and the probability of local recurrence in that voxel (a), and receiver operating characteristic curve (b) for the recurrent group. Abbreviations: CI confidence interval, TMR tumor-to-muscle ratio, FMISO 18F–fluoromisonidazole, AUC area under the curveBack to article page