Fig. 3

Velocity and wall pressure analysis at systolic peak. a, b Flow velocity vector map consists of two parts: ascending aorta with aorta arch section (a); descending aorta section (b). Slices cut tears in half and can display true and false lumen intuitively. Trends in flow velocity distribution among all models are similar; however, flow patterns of ascending aorta with aorta arch section in false lumen are quite different. c Pressure distributions. The vessel wall pressure gradually decreases from the proximal to the distal end in all models