The RX ACCUNET(TM) Embolic Protection System (an umbrella-like device that expands above the narrowed portion of the carotid artery) will be used in conjunction with the RX ACCULINK stent. The RX ACCUNET system is designed to capture embolic material that could break off from the narrowed area in the carotid artery while still allowing blood to flow through the vessel during the procedure. Embolic material could block blood flow to the arteries beyond the narrowing and be harmful to the brain. The RX ACCUNET System is closed and removed after the stent is placed.