Regression and Bland-Altmann Plots for repeatability of T2-relaxation-under-spin-tagging (TRUST), and asymmetric spin echo (ASE) variants: ASERF−, ASERF+, and VASO-ASE (see Figure 1 for description). Repeatability (measured as intraclass correlation coefficient, ICC) is excellent for TRUST (ICC=0.98), ASERF− (ICC=0.91), and ASERF+ (ICC=0.89), but moderate for VASO-ASE (ICC=0.61). Purple lines denote the 95% confidence interval on Bland-Altman analysis.