1st, the groin is injected with a local anesthetic which numbs the region, then a catheter is placed into an artery during the groin and directed in to the aorta. Distinction dye is injected into the aorta, aneurysm, and blood vessels branching off of the aorta, which gives the vascular https://www.sgvascularctr.com/abdominal-aortic-aneurysm-treatment-in-singapore-a-comprehensive-guide/