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Difference between median HU of each insert and true value (see Newell et al12), points shown here are from the 30 mAs scans. To prevent mixing of effects in this example, no ADMIRE or NiTANN data was used. HU, Hounsfield unit; FBP, filteredbackprojection; ADMIRE, ADvanced Model Iterative Reconstruction; NiTANN, non-iterative technique artificial neural network.
