Skip to main content
. 2017 Apr 13;25(8):9378–9392. doi: 10.1364/OE.25.009378

Fig. 9.

Fig. 9

Study on the 2 cm ROI: (a)–(c) K-edge tomographic concentration images of the human phantom with 0.1%, 0.2%, and 0.5% gadolinium solution concentrations, respectively. (d)–(f) K-edge subtraction images of the human phantom with 0.1%, 0.2%, and 0.5% gadolinium solution concentrations, respectively. (g)–(i) Conventional CT images of the human phantom with 0.1%, 0.2%, and 0.5% gadolinium solution concentrations, respectively. The display windows are [-3e-3, 3e-3] for (a)–(c), [0, 1500] HU for (d)–(f), and [0, 2500] HU for (g)–(i).