1st, the groin is injected with a local anesthetic which numbs the world, then a catheter is put into an artery from the groin and directed into your aorta. Distinction dye is injected into the aorta, aneurysm, and blood vessels branching off in the aorta, which delivers the vascular surgeon https://www.sgvascularctr.com/abdominal-aortic-aneurysm-treatment-in-singapore-a-comprehensive-guide/