Due to the complex anatomy of the heart, its valves, and the aorta, the blood flow in the aorta is similarly complex and can exhibit a swirling, or helical flow pattern. Previous studies have shown that aortic geometry changes with age. As the shape of the aorta is complex and evolves over time, the aim of this study is to examine the relationship between the shape of the aorta and helical flow. The results show that the aorta gets more tortuous with age, and that the increased tortuosity is associated with increased helicity.
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