Fig. 3From: The use of PET/MRI in radiotherapySixty nine-year-old female with nasopharynx cancers. a The blue line represents gross tumor volume (GTV)-PET/CT. b The pink line represents GTV-PET/MRI. c The red line represents GTV-CT. d The green line represents GTV-MRI. e The yellow line represents GTV-PETBack to article page