Fig. 3.
Comparison of cardiac output in the aorta measured by the invasive flow probe, 4D flow and 2D flow CMR Correlation between the invasive flow probe, 4D flow CMR (a n = 7), and 2D flow CMR (c n = 6) measurements of the aortic flow. Line of identity is indicated as the dotted line and Spearman’s rho (ρ) and P value are indicated in the legends (a, c). Bland–Altman plots of the cardiac output (CO), with the mean, 1.96 standard deviation (SD) and -1.96 SD lines indicated as the dotted lines. b invasive flow probe and 4D flow CMR measurements (n = 7), and d invasive flow probe and 2D flow CMR measurements (n = 6)