Demographic, clinical, and histopathologic data of patients included in this study
| Gender | |
| Male | 33 |
| Female | 19 |
| Age (y) | |
| Average | 41.5 |
| Range | 3–72 |
| WHO classification | |
| Pilocytic astrocytoma | |
| Grade I | 3 |
| Ganglioglioma | |
| Grades I–II | 1 |
| Low-grade astrocytoma | |
| Grade II | 7 |
| Anaplastic astrocytoma | |
| Grade III | 8 |
| Glioblastoma multiforme | |
| Grade IV | 4 |
| Mixed oligoastrocytoma | 6 |
| Grade I | 1 |
| Grade II | 1 |
| Grade III | 1 |
| Grades III–IV | 3 |
| Oligodendroglioma | 15 |
| Grades I–II | 3 |
| Grade II | 5 |
| Grade III | 4 |
| Grades III–IV | 1 |
| Grade IV | 2 |
| No evidence of malignancy | 8 |
| Therapy prior to PET scan | |
| Surgery | 5 |
| Surgery and radiotherapy | 10 |
| Radiotherapy | 7 |
| Chemotherapy | 1 |
| Radiotherapy with chemotherapy | 3 |
| Surgery, radiotherapy, and chemotherapy | 2 |
| Therapy after PET scan | |
| Surgery | 8 |
| Surgery and radiotherapy | 3 |
| Radiotherapy | 4 |
| Chemotherapy | 4 |
| Surgery and chemotherapy | 2 |
| Radiotherapy and chemotherapy | 3 |
| Surgery, radiotherapy, and chemotherapy | 2 |