Figure 2
Deployment of covered stents to treat and gross specimen of experimental aneurysms and fistulas. (A, B). An aneurysm (arrow) made of venous pouches was shown on angiography (A), and deployment of a self-expandable covered stent eliminated the aneurysm (B). C&D. An arteriovenous fistula (arrow) between the external jugular vein and the carotid artery was shown (C), and deployment of the Willis stent immediately occluded the fistula (D, arrow). (E, F) Two aneurysms were made of venous pouches were shown after construction (E), and twenty days after deployment of a covered stent, the aneurysm (arrow) shrank significantly in vivo (F). (G, H) The aneurysm was excised (G), and non-completely-organized thrombi were presented within the aneurysm cavity after the aneurysm was cut open (H, arrow). (I) At 6 months, the aneurysm in vivo shrank significantly (arrow). (J) The orifice of a fistula between the external jugular vein and the carotid artery was covered by a thin layer of transparent substance (intima).
