AAPM	American Association of Physicists in Medicine
ASiR	Adaptive Statistical Iterative Reconstruction
CNR	Contrast-to-Noise Ratio
CT	Computed Tomography
DLIR	Deep Learning Image Reconstruction
ESF	Edge Spread Function
FBP	Filtered-Back Projection
FFT	Fast Fourier Transform
HU	Hounsfield Unit
IR	Iterative Reconstruction
LSF	Line Spread Function
LSI	Linear Shift Invariant
MTF	Modulation Transfer Function
ROI	Region-of-Interest
TTF	Task-Transfer Function