Coil Embolization is a catheter-based procedure that allows precise occlusion of abnormal blood flow in a blood vessel. Our trained physician can insert a catheter with a metallic occluding coil into an artery, usually in the groin (the femoral artery). The catheter proceeds to the abnormal blood vessel. Once correctly positioned, the metal coil is released, springing into position within the vessel. It remains firmly in place by the expansion of the metal coils. A blood clot will form on the coil, completely obstructing the abnormal blood flow beyond the coil. Eventually, a scar will develop, creating a permanent seal.