Fig. 1From: Local relapse of nasopharyngeal cancer and Voxel-based analysis of FMISO uptake using PET with semiconductor detectorsNumber of patients and medical imaging modalities analyzed in this study. Abbreviations: CT, computed tomography; RT, radiation therapy; CT pri , CT before radiation therapy; FMISO-PET, 18F–fluoromisonidazole positron emission tomography; CT rec , CT at local recurrenceBack to article page