Table 2 Overview of the scanning protocols used to acquire images with the IQ phantom.

From: Repeatability and reproducibility study of radiomic features on a phantom and human cohort

Protocol name

Tube current (mA)

Reconstruction slice thickness (mm)

[voxel size (cubic millimeter)]

(scanner 1&2)

Reconstruction slice thickness (mm)

[voxel size (cubic millimeter)]

(scanner 3)

Protocol 1

100

2 [0.86 × 0.86 × 2]

2.5 [0.9653 × 0.9653 × 2.5]

Protocol 2

100

5 [0.86 × 0.86 × 5]

5 [0.9653 × 0.9653 × 5]

Protocol 3

200

2 [0.86 × 0.86 × 2]

2.5 [0.9653 × 0.9653 × 2.5]

Protocol 4

200

5 [0.86 × 0.86 × 5]

5 [0.9653 × 0.9653 × 5]

Protocol 5

300

2 [0.86 × 0.86 × 2]

2.5 [0.9653 × 0.9653 × 2.5]

Protocol 6

300

5 [0.86 × 0.86 × 5]

5 [0.9653 × 0.9653 × 5]

  1. Six scanning protocols, with same tube voltage (120 kV), pitch (Scanner 1&2: 0.46; Scanner 3: 2.5), and reconstruction kernel, but different tube currents and slice thicknesses were investigated. The phantom was scanned twice on scanners 1–2–3 without repositioning in a 30-min test–retest scenario. The total number of scans acquired with the IQ phantom is 6 protocols × 3 scanners × 2 (test–retest) = 36 scans.