Increased rotational flow in the proximal aortic arch is associated with its dilation in bicuspid aortic valve disease

AIMS: Aortic dilation in bicuspid aortic valve (BAV) might extend to the proximal arch. Arch flow dynamics and their relationship with this segment dilation are still unexplored. Using 4D-flow cardiovascular magnetic resonance, we analysed flow dynamics in the arch for each BAV morphotype and their association with this segment dilation. METHODS AND RESULTS: One hundred and eleven BAV patients (aortic diameters