NCT01579253 2012-12-18Combined O-(2-[18F]Fluoroethyl)-L-tyrosine (FET) Positron Emission Tomography (PET) and Simultaneous Magnetic Resonance Imaging (MRI) Follow-up in Re-irradiated Recurrent Glioblastoma PatientsLudwig-Maximilians - University of MunichUnknown10 enrolled