BBB	Blood–brain barrier
CNN	Convolutional Neural Network
CT	Computed Tomography
CTV	Clinical Target Volume
DSC	Dice-Sørensen-Coefficient
FET	O-(2)-18F-Fluoroethyl-L-Tyrosine
FLAIR	T2-weighted fluid-attenuated inversion recovery (magnetic resonance sequence)
GBM	Glioblastoma
GT	Ground Truth
HD	Hausdorff Distance
MR	Magnetic Resonance
MR∩PET	MR-Enhancing regions with PET-Uptake overlap
MR-Only	MR-Enhancing regions without PET-Uptake overlap
OARs	Organs at Risk
PC	Prospective Cohort
PET	Positron Emission Tomography
PPV	Positive Predictive Value
PTV	Planning Target Volume
RC	Retrospective Cohort
RF	Radiomic Features
RT	Radiation Therapy
T1wCE	Contrast-enhanced T1-weighted (magnetic resonance sequence)
WSRT	Wilcoxon signed-rank test