Fig. 1From: MicroRNAs involve in bicuspid aortic aneurysm: pathogenesis and biomarkersType 0 has no raphe (left), the direction of transverse or longitudinal openings is used as the basis for further classification. Type 1 has three subtypes (middle), of which L-R fusion has the highest incidence in patients with BAV malformation. Type 2 has bi-commissural fusions (right)Back to article page