Fig. 3
From: Multicolour imaging with spectral photon-counting CT: a phantom study
Measurements of the concentrations of contrast agents in the unmixed solutions. The concentrations of iodine (purple) (a, b), gadolinium (green) (c, d) and gold (yellow) (e, f) were measured in their respective unmixed solutions. a, c, e Linear regression; b, d, f Bland–Altman analysis. Note the linear correlations and the slope values approaching 1 for all contrast agents