Table 1 Morphometric parameters measured on the 3D surface models of the arches

• Arch height A [mm]

• Arch width T [mm]

• Ratio A/T

• Diameters at ascending, transverse, isthmus and descending level of the aorta: D_asc, D_trans, D_isth, D_desc [mm]

• Ratios D_asc/D_desc, D_trans/D_desc and D_isth/D_desc

• Volume V [mm³]

• Surface Area A_surf [mm²]

• Ratio A_surf/V

• Centreline length L_CL [mm]

• Centreline Tortuosity To_CL

• Median curvature along centreline C_med [1/mm]

• Maximum, minimum and median diameter along centreline D_max, D_min, D_med [mm]