Figure 2. Streamlined visualization of aortic flows with various directional aortic valves.

Note that the helical flow directions varied depending on the aortic valve flows. The straight, posterior, and right directions of the aortic valve flows resulted in right-handed rotations in the aorta, while the anterior and left directions of the aortic valve flows resulted in left-handed rotations in the aorta. A indicates anterior; L, left; R, right; H, head.