Other endoprostheses such as stent-grafts, or covered stents, can be used to substitute for or reinforce a lumen, such as the aorta or other blood vessels that have been weakened, e.g., by an aneurysm. [0003] Endoprostheses can be delivered inside the body by a catheter that supports an endoprosthesis in a compacted or reduced-size form as the endoprosthesis is transported to a desired site.