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Fig. 1 | Journal of Cardiovascular Magnetic Resonance

Fig. 1

From: Synthetic hematocrit derived from the longitudinal relaxation of blood can lead to clinically significant errors in measurement of extracellular volume fraction in pediatric and young adult patients

Fig. 1

Linear regression fit of measured vs synthetic Hct and ECV for published model. Poor regression fit to the published model (a) with a bias of 2.2% on Bland-Altman analysis (b). However at the mid-free wall, the regression fit for ECV is substantially better (c) with an expected inverse bias on Bland-Altman analysis due to the bias seen in the Hct (d). Dashed line in A and C represents line of identity. For Bland-Altman plots, solid line represents mean difference and dashed lines (B and D) are ±1.96SD

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