Table 2.

CT Scanners, acquisition, and reconstruction parameters used for varying radiation dose (mAs).

CT scanner	kVp	Kernel	Recon. FOV (mm)	Scan type	Slice thickness, reconstruction interval	Detector configuration (mm)	Radiation dose (mAs) (variable)
GE Discovery STE	120	Standard	250	Helical	1.25 mm, adjacent	Det. coverage= 40	50, 100, 200, 300, 400
Philips Brilliance 64	120	Standard (B)	250	Helical	1.5 mm, adjacent	$64\times 0.625$	50, 100, 200, 300, 400
Siemens Definition AS	120	I31f-2	250	Helical	1.5 mm, adjacent	$64\times 0.6$	50, 100, 200, 300, 400
Siemens Sensation 64	120	B31f	250	Helical	1.5 mm, adjacent	$64\times 0.6$	50, 100, 200, 300, 400