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Correlation (A) and Bland–Altman plots (B) of MR-based regional MBF vs PET-based regional MBF at rest and stress. The solid line in A is line of identity. The solid line in B indicate the mean difference (bias), whereas the dashed lines show the limits of agreement. Bias (limits of agreement) in b are 0.00 (− 2.17 to 2.17). Correlation for the three separate coronary artery regions are: LAD r = 0.78 (red), RCA r = 0.82 (blue), LCx r = 0.53 (green)
