Table 3 Reconstruction and acquisition parameters used to obtain the CTs
Parameter | PREOPANC dataset N = 232 | LAPC dataset N = 50 | CONTROL dataset N = 50 | MSKCC dataset N = 281 |
|---|---|---|---|---|
Pitch/table speed | 0.6–0.938/15.64–61.4 mm | 0.5–1.356/19.2–185 mm | 0.914–1.9/134.3–437.6 mm | 0.98–1.375/39.37–27.5 mm |
x-ray tube current | 50–484 mA | 50–479 mA | 77–2,551 mA | 220–380 mA |
kVp | 100–120 kVp | 80–120 kVp | 70–120 kVp | 120 kVp |
Tube rotation speed | 0.5–0.6 ms | 0.4–0.5 ms | 0.4 ms | 0.7–0.8 ms |
Slice thickness | 1.0–5.0 mm | 0.625–5.0 mm | 1.0–3.0 mm | 2.5 mm |
Width × height | 512–1,189 × 512–1,228 | 512–1,043 × 512–1,067 | 512 × 512 | 512 × 512 |
Machine manufacturer and type | SIEMENS: SOMATOM Force/Definition AS + /Edge/Flash, Aquilion ONE, iCT 256, Sensation64, Brilliance64 GE Healthcare: LightSpeed16, BrightSpeed Philips: Optima CT660 | SIEMENS: SOMATOM Force/Definition AS + /Definition Edge, Aquilion ONE, iCT 256, Biograph64, Brilliance40/64, Philips: Ingenuity Core, Optima CT660 | SIEMENS: SOMATOM Force/Definition AS + , iCT 256, Brilliance64 | GE Healthcare |