Figure 1

A)-F) Velocity MIPs derived from aortic 4D flow data. The white points outlined in black indicate the peak velocity found in each of the 3 regions of interest: ascending aorta (AAo), aortic arch and descending aorta. A) and B) are the first (age: 19 years) and second scans of the same patient, respectively, 15 months apart. C) and D) are the first (age: 20 years) and second scans of the same patient, respectively, 21 months apart. E) and F) are the first (age: 14 years) and second scans of the same patient, respectively, 23 months apart. G) Plot of the differences in AAo peak velocities between the first and second scan for all patients. The Wilcoxon signed-rank sum test (p =0.10) was used to test the significance of the difference between scan 1 and scan 2 AAo peak velocities. H) Patient Characteristics.