Figure 1

(A/B) Differences in velocity estimation between 1Dir and 3Dir PC-MRI. While 1Dir PC-MRI computes velocity in one direction (Z), 3Dir PC-MRI simultaneously computes velocities in 3 directions (X, Y and Z) in a single breath-hold. (C/D) Bland-Altman plots of comparison between peak velocities from TTE versus 1Dir PC-MRI, and TTE versus 3Dir PC-MRI.