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Table 2 Iodine concentration measurements for all concentrations (mg/mL) and phantom sizes

From: Quantitative benchmarking of iodine imaging for two CT spectral imaging technologies: a phantom study

 

General Electric Revolution

Siemens Somatom Drive

Solution

Small

Medium

Large

Small

Medium

Large

Water

-0.2

-0.1

-0.9

0.1

0.2

0.3

Saline

-0.2

-0.6

-0.7

0.4

0.2

0.3

Iodine 10 mg/mL

10.3 (3.0)

10.7 (7.0)

10.9 (9.0)

11.2 (12.0)

11.1 (11.0)

11.2 (12.0)

Iodine 20 mg/mL

20.6 (3.0)

21.0 (5.0)

21.7 (8.5)

21.8 (9.0)

21.6 (8.0)

22.2 (11.0)

Iodine 30 mg/mL

30.8 (2.7)

31.5 (5.0)

32.4 (8.0)

31.7 (5.7)

31.8 (6.0)

32.2 (7.3)

Iodine 50 mg/mL

51.4 (2.8)

52.8 (5.0)

52.2 (4.4)

51.0 (2.0)

51.0 (2.0)

52.0 (4.0)

Iodine 100 mg/mL

101.8 (1.8)

104.0 (4.0)

103.1 (3.1)

66.2 (-33.8)

73.2 (-26.8)

76.6 (-23.4)

  1. Percentage difference between known and measured iodine concentration in parentheses
  2. CTDIvol Volumetric computed tomography dose index