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Bland-Altman plots show the agreement of pCASL whole-brain CBF measurements by using (a, b) default (1650 msec), (c, d) measured, and (e, f) Wu model–predicted blood T1 values with PC MR imaging. Data from all 22 subjects are shown in a, c, and e, and data from 18 subjects who underwent repeat imaging are shown in b, d, and f. Solid red and dotted green lines are the mean bias and limits of agreement (1.96 × standard deviation), respectively.
