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. 2022 Jan 4;40(6):547–559. doi: 10.1007/s11604-021-01233-2

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© The Author(s) 2021

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Fig. 17 — A 77-year-old woman who received gastrografin orally. The virtual monochromatic image at 70 keV (a) and the virtual non-contrast enhanced image (b) were obtained after unenhanced dual-energy CT. On the virtual non-contrast enhanced image (b), iodine in the small intestine is well removed. Iodine removal from the stomach is incomplete (dotted circle), suggesting that the iodine concentration was very high. During the virtual non-contrast reconstruction process, the volume of the calcification on the aortic wall was reduced (arrows)