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. Author manuscript; available in PMC: 2023 Mar 18.
Published in final edited form as: Proc SPIE Int Soc Opt Eng. 2022 Oct 17;12304:123042G. doi: 10.1117/12.2647008

Table 1.

Scan Protocols for the Micro CT Phantom

Micro CT scan Clinical CT scan
Scanner model MILabs U-CT Philips IQon Spectral CT
Tube voltage 50 kVp 120 kVp
Tube current 0.21 mA 130 mA
Exposure time 54 s 1.923 s
Spiral pitch factor Axial scan 0.39
Exposure 11.3 mAs 250 mAs
CTDIvol 69 mGy 16.4 mGy
Collimation wdith - 0.625 / 40.0 mm
Slice thickness 0.08 mm 0.67 mm
Convolution kernel - YC
Field of view 22.16 × 22.16 mm2 100 × 100 mm2
Matrix size 277 × 277 pixel2 512 × 512 pixel2
Pixel Spacing 0.080 mm 0.195 mm

Collimation width values are notes as single / total collimation width.