RT	Radiotherapy
IGRT	Image-Guided Radiotherapy
CBCT	Cone-Beam Computed Tomography
iCBCT	Iterative CBCT
CT	Computed Tomography
FDK	Feldkamp–Davis–Kress
oART	Online Adaptive Radiotherapy
OARs	Organs at Risk
MRI	Magnetic Resonance Imaging
PTV	Planning Target Volume
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
CT-sim	CT Simulation
QA	Quality Assurance
AI	Artificial Intelligence
RTTs	Radiation Therapists
DIR	Deformable Image Registration
GTV	Gross Tumor Volume
CTV	Clinical Target Volume
HU	Hounsfield Unit
MAR	Metal Artifact Reduction
pMR	Pathological Major Response
APBI	Accelerated Partial-Breast Irradiation
SBRT	Stereotactic Body Radiotherapy
IMRT	Intensity-Modulated Radiotherapy
MALT	Mucosa-Associated Lymphoid Tissue
MIBC	Muscle-Invasive Bladder Cancer
DVH	Dose–Volume Histogram
dCT	Diagnostic CT
sCT	Synthetic CT