CFT, Rey Complex Figure Test; CMB, Cerebral Microbleed; COWAT, Controlled Oral Word Association Test; CTV, Clinical Target Volume; Cerebral microbleeds; FLAIR, Fluid-Attenuated Inversion Recovery; FoV, Field-of-View; Glioma; IDH, Isocitrate DeHydrogenase; LGG, Lower Grade Glioma; MRI, Magnetic Resonance Imaging; NCF, Neurocognitive Function; NTCP, Normal Tissue Complication Prediction; Neurocognitive function; RAVLT-DR, Rey's Auditory Verbal Learning Test ­ delayed recall; RAVLT-IR, Rey's Auditory Verbal Learning Test ­ immediate recall; RIBD, Radiation-Induced Brain Damage; RT, Radiotherapy; Radiotherapy; SDMT, Symbol Digit Modalities Test; SWI, Susceptibility-Weighted Imaging; T, Tesla; TE, Echo Time; TI, Inversion Time; TMTA, Trail Making Test part A; TMTB, Trail Making Test part B; TMTBA, Trail Making Test part B divided by A; TR, Repetition Time; UMCG, University Medical Center Groningen; Verbal memory; Volumetry; WHO, World Health Organisation