RecruitingPhase 1Drug trialFeasibility of Acquiring Hyperpolarized Imaging in Patients With MeningiomaThis is a Pilot/Phase I clinical study of hyperpolarized 13C (HP 13C) pyruvate injection that includes the acquisition of magnetic resonance (MR) data performed on participants with meningioma to evaluate metabolism and aid in the non-invasive characterization of aggressive tumor behavior