Table 1.

Acquisition and reconstruction parameters used to scan the phantoms

Exam	Noise & NPS	MTF	SSP	CT # Accuracy	ACR	Pig	Cadaver head
Parameters
Detector Collimation, mm	32 × 0.5
Tube potential, kV	140
Energy thresholds, keV	[25, 45, 65, 85]						[20, 50, 63, 83]
Tube current, mA	400/100	80	140	140	400	540	220
Rotation time, s	1.0	0.5	0.5	1.0	0.5	0.5	1.0
Acquisition FOV, mm	275
Scan mode	Head
Pitch	N/Aa	0.5	0.5	N/Aa	0.6	0.6	0.6
CTDIvol, mGy	101.1/25.1	10.1	17.7	35.5	50.5	68.4	55.5
Image thickness, mm	2.0	1.0	0.5	2.0	5.0	3.0	1.0
Image interval, mm	0.8	1.0	0.1	0.8	1.0	2.0	1.0
Reconstruction kernel	D30						D40
Reconstruction FOV, mm	200	50	50	200	200	275	275

^aN/A refers to sequential scan.