Fig. 5
Representative cases. Contrast-enhanced T1-weighted magnetic resonance images (MRI CE), T2-weighted or fluid attenuated inversion recovery images (MRI T2 or FLAIR), 18F-FAMT PET images, and 18F-FDG PET images, from left to right. a A 71-year-old man with diffuse astrocytoma. 18F-FAMT T/N ratio was 2.05. 18F-FDG T/N ratio was 0.90. b A 32-year-old man with oligoastrocytoma. 18F-FAMT T/N ratio was 2.80. 18F-FDG T/N ratio was 0.86. c A 50-year-old man with anaplastic astrocytoma. 18F-FAMT T/N ratio was 5.33. 18F-FDG T/N ratio was 1.22. d A 39-year-old woman with anaplastic oligoastrocytoma. 18F-FAMT T/N ratio was 5.48. 18F-FDG T/N ratio was 0.58. e A 56-year-old man with glioblastoma. 18F-FAMT T/N ratio was 4.73. 18F-FDG T/N ratio was 1.05