PCa	Prostate Cancer
SBRT	Stereotactic Body Radiation Therapy
CK	CyberKnife
MLC	Multileaf Collimator
IRIS	Iris Variable Aperture Collimator
ASR	Age-Standardized Rate
PSA	Prostate-Specific Antigen
TCP	Tumor Control Probability
OAR	Organ At Risk
PTV	Planning Target Volume
MU	Monitor Units
IGRT	Image-Guided Radiation Therapy
ADT	Androgen Deprivation Therapy
CT	Computed Tomography
CTV	Clinical Target Volume
GTV	Gross Tumor Volume
CI	Conformity Index
nCI	new Conformity Index
HI	Homogeneity Index
GI	Gradient Index
PIV	Prescription Isodose Volume
TIV	Tumor Isodose Volume