Optimum geometric parameters of the stent-graft.

VB—the volume of upper part of the stent-graft, VL—the volume of lower part of the stent-graft, DL−the left outlet diameters of iliac part of the stent-graft, DR—the right outlet diameters of iliac part of the stent-graft, Din—inlet diameter, Dout_avg—average diameter at the outlet from the stent-graft, T–Tortuosity, TL—the tortuosity of left branch in the stent-graft, TR−the tortuosity of left branch in the stent-graft, Bend–Bend in the iliac part of the stent-graft, bendout_L−the bend in left branch of the stent-graft, bendout_R−the bend in left branch of the stent-graft.