Table 1.

CT scanners, acquisition, and reconstruction parameters for varying reconstruction kernels.

CT scanner	kVp	mAs	Recon. FOV (mm)	Scan type	Slice thickness, recon. interval	Detector configuration (mm)	Reconstruction kernel (variable)
GE Discovery STE	120	65	250	Helical	1.25 mm, adjacent	Det. coverage = 40	Soft, standard, detail, lung, and edge
Philips Brilliance 64	120	65	250	Helical	1.5 mm, adjacent	$64\times 0.625$	Smooth (A), standard (B), sharp(C), lung enhanced (L), and $Y$-sharp (YA)
Siemens Definition AS	120	65	250	Helical	1.5 mm, adjacent	$64\times 0.6$	I26f-2, I30f-2, I40f-2,I44f-2, I50f-2, and I70f-2
Siemens Sensation 64	120	65	250	Helical	1.5 mm, adjacent	$64\times 0.6$	B10f, B20f, B31f, B50f, B60f, and B70f
Siemens Sensation 40	120	65	250	Helical	1.5 mm, adjacent	$40\times 0.6$	B10f, B20f, B31f, B50f, B60f, and B70f