SPECT	Single Photon Emission Computed Tomography
CT	Computed Tomography
RNT	Radionuclide Therapy
XRT	External Radiation Therapy
FOV	Field Of View
BED	Biological Effective Dose
ROI	Region Of Interest
VOI	Volume Of Interest
DVH	Dose Volume Histogram
ME	Medium Energy
HE	High Energy
EGS	Electron Gamma Shower
OS-EM	Ordered Subset Expectation Maximization
ML-EM	Maximum Likelihood Expectation Maximization
TAC	Time Activity Curve
WB	Whole-Body
MIRD	Medical Internal Radiation Dosimetry