Fig. 2

Quantitative phantom validation in array of vials with varying water and deuterium oxide concentrations. A CMR image with analyzed regions of interests (white circles). B Correlation plot between known water concentrations used to make the phantom and CMR-estimated water concentrations relative the 100% water vial, showing a linear relation. C Bland–Altman plot, showing a low bias between the metrics. Three test–retest measurements were made on different days. ICC intraclass correlation coefficient