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Table 3 HU and standard deviation (SD) in virtual non-contrast enhanced images for all concentrations and different 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 -1.5±5.0 -2.7±13.8 -8.4±16.0 -3.7±3.0 -6.4±5.6 -4.6±8.5
Saline 7.1±5.8 2.4±16.2 1.3±16.9 1.9±3.1 2.4±7.2 1.5±8.0
Iodine 10 mg/mL 5.4±3.0 -6.7±5.8 -4.3±9.6 -7.2±2.7 -7.1±5.8 -5.2±8.3
Iodine 20 mg/mL -1.3±3.1 -24.5±15.2 -30.3±10.4 -2.3±4.4 -0.8±6.1 -3.7±9.8
Iodine 30 mg/mL -13.1±3.1 -30.3±5.9 -48.2±9.5 9.5±4.8 8.4±9.6 3.1±9.5
Iodine 50 mg/mL -26.9±4.2 -63.5±8.8 -75.4±11.7 39.7±11.6 35.0±12.0 21.5±16.6
Iodine 100 mg/mL -64.6±4.3 -121.6±8.5 -127.8±14.5 539.1±39.2 420.1±34.6 367.4±22.4
  1. HU Hounsfield units