Initial, the groin is injected with an area anesthetic which numbs the region, then a catheter is positioned into an artery within the groin and directed to the aorta. Contrast dye is injected to the aorta, aneurysm, and blood vessels branching off in the aorta, which presents the vascular surgeon https://www.sgvascularctr.com/abdominal-aortic-aneurysm-treatment-in-singapore-a-comprehensive-guide/