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Abstract #2836

Quantification of helical flow and aortic tortuosity using 4D Flow MRI

Filippa Gustafsson1,2, Magnus Ziegler1,2, Martin Welander1,3, Marcus Lindenberger1,3, Niclas Bjarnegård1, Tino Ebbers1,2, Toste Länne1,3, and Petter Dyverfeldt1,2

1Department of Medical and Health Sciences, Linköping University, Linköping, Sweden, 2Center for Medical Image Science and Visualization (CMIV), Linköping, Sweden, 3University Hospital Linköping, Linköping, Sweden

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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