 Thereafter, 6-French pigtail catheter was advanced to the level of the distal aorta where angiography of the distal aorta and the bifurcation of the right and left common iliac arteries was obtained. 
Thereafter , 6 - French pigtail catheter was advanced to the level of the distal aorta where angiography of the distal aorta and the bifurcation of the right and left common iliac arteries was obtained .