Fluorine F 18 Fluorodopa-Labeled PET Scan in Planning Surgery and Radiation Therapy in Treating Patients With Newly Diagnosed High- or Low-Grade Malignant Glioma

Inclusion Criteria: * Age ≥18 years. * MRI findings compatible with newly diagnosed high- or low-grade malignant glioma * Planned craniotomy and resection or biopsy * Willing to sign release of information for any radiation and/or follow-up records * Negative pregnancy test done =\< 48 hours of injection of study drug, for women of childbearing potential only * Provide informed written consent * Patients with eGFR \< 60 mg/min/1.72m2 are eligible for the study; PLEASE NOTE: the patient is not eligible to receive the contrast for the pMRI at the study dose. Exclusion Criteria: * Unable to undergo MRI scans with contrast (e.g. cardiac pacemaker, defibrillator, kidney failure) * Unable to undergo an 18F-FDOPA PET scan (e.g. Parkinson's Disease, taking anti-dopaminergic, or dopamine agonist medication or less than 6 half-lives from discontinuance of dopamine agonists) * Pregnant women; nursing women; men or women of childbearing potential who are unwilling to employ adequate contraception