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Results of noise assessment using the medium (A) and large (B) CIRS phantoms scanned at 140 kV. The PCD images used for the noise assessment were generated using the macro mode with an energy range of [25, 140] keV. Legends: baseline images – W/O DCS; Test images – 17, 22, 27, 32, 37 mAs DCS; Reference images – 568 mAs DCS.
