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Table 7 Mean difference in HU values between phantom sizes for all monoenergetic images and iodine concentrations with Siemens Somatom Drive

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

Phantom sizes 10 mg/mL 20 mg/mL 30 mg/mL 50 mg/mL 100 mg/mL
M vs S -3.25 (0.334) -3.36 (0.607) -2.59 (0.788) -4.49 (0.772) -25.80 (0.333)
L vs S 1.46 (0.661) -1.79 (0.784) 0.01 (0.999) -0.44 (0.997) -29.66 (0.268)
L vs M 4.71 (0.167) 1.58 (0.809) 2.6 (0.787) 4.05 (0.793) -3.86 (0.883)
  1. HU Hounsfield units, M vs S medium versus small phantom size, L vs M large versus medium phantom size, L vs S large versus small phantom size
  2. p-value in parentheses