Fig. 2.

Relaxation rates (R₁) for gadobutrol and gadoxectic acid at concentrations 10–50 mM for control samples (one sample per concentration). For 20 mM, three (black) data points for the pre-irradiation condition and six (red) data points (at 2 h and 48 h after irradiation) for the post-irradiation condition are shown. Data points belonging to same concentration are slightly moved apart on the x-axis for better visualization. The error bars indicate the estimated 95% CI of R₁ in this study(±0.0053 ms⁻¹). Dashed line shows a linear fit based on control data points. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)