Fig. 5

a Linear regression analysis between the 4D Flow MRI velocities and the calculated qDSA velocities (r = 0.880, p = <.001). The shaded region represents the 95% confidence band. b Bland-Altman analysis between the 4D Flow MRI and qDSA velocities (Bias = 0.117 cm/s, LOA [− 10.30 cm/s, 10.53 cm/s])