PRIMARY OBJECTIVES:
I. To compare fluciclovine F18 (F18 fluciclovine) PET CT for tumor volume assessment compared to T2 fluid attenuated inversion recovery (FLAIR) and T1 post contrast magnetic resonance (MR) brain imaging.
SECONDARY OBJECTIVES:
I. To assess changes in F18 fluciclovine defined disease with surgery and radiation.
II. To assess the relationship between post-radiation enhancing brain tissue and F18 fluciclovine activity.
EXPLORATORY OBJECTIVES:
I. To assess the association between results from pathology and F18 fluciclovine, T2 FLAIR, and T1 post-contrast MR brain imaging.
OUTLINE:
Patients receive fluciclovine F18 intravenously (IV) and undergo 4 PET/CT scans over 10 minutes paired with standard of care MRI within 14 days prior to initial maximal tumor resection, within 7 days prior to initiation of radiation therapy, 28 days after the completion of radiation therapy, and 6 months after the completion of radiation therapy.
After completion of study, patients will be followed up at 3 and 6 months.