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Table 2 Parameters of CT Scanners At Pediatric and General EDs

From: Differences in radiation dose for computed tomography of the brain among pediatric patients at the emergency departments: an observational study

Parameters Pediatric ED General EDs
Tube Potential, kV 100, 120 100,120
Median Tube Current - Exposure Time Product (IQR), mAs
  ≤ 6 months 148.50 (135.25–184.00) 263.00 (−)
  > 6 months to ≤3 years 176.00 (156.00–210.00) 288.00 (257.25–300.00)
  > 3 years to ≤6 years 196.00 (181.75–239.00) 294.00 (229.50–336.00)
  > 6 years to ≤10 years 244.00 (192.50–260.00) 300.00 (250.00–312.00)
  > 10 years 204.00 (187.00–264.00) 320.00 (238.00–360.00)
Median Scan Range (IQR), cm
  ≤ 6 months 16.32 (15.14–17.36) 12.93 (−)
  > 6 months to ≤3 years 18.20 (16.91–19.50) 17.40 (10.89–27.74)
  > 3 years to ≤6 years 18.63 (18.00–19.74) 13.41 (11.58–17.24)
  > 6 years to ≤10 years 19.17 (18.49–20.32) 17.16 (15.02–18.60)
  > 10 years 19.60 (18.78–20.63) 18.49 (16.78–19.39)
Pitch Value 0.55–1.55 0.5–1.55
Rotation Time, seconds 0.28–1.0 0.5–1.0
Collimation, mm
 Siemens 128 × 0.6, 192 × 0.6 128 × 0.6, 192 × 0.6
 Toshiba 40 × 0.6 40 × 0.6
Reconstruction Technique Iterative Iterative
Section Thickness, mm 3 3