Fig. 3
From: Quantitative myocardial blood flow imaging with integrated time-of-flight PET-MR
Correlation (a, c) and Bland-Altman plots (b, d) of PET-MR-based regional MBF std (clinical protocol) versus PET-CT-based regional MBF (a, b) and regional CFR (c, d). Rest and hyperemic stress values are plotted for MBF. The solid lines in a and c are lines of identity. The solid lines in b and d indicate the mean difference (bias), whereas the dashed lines show the limits of agreement. The regression slopes are 0.91 (0.85–0.98) and 0.98 (0.64–1.32) in a and c, respectively. Bias (limits of agreement) are −0.04 (−0.73 to 0.65) and 0.11 (−1.56 to 1.78) in b and d, respectively