FIG 1. Subject 1, aneurysm packed with collagen-based coil (2-week sample).

A, DSA image, showing aneurysm cavity.

B, Radiograph, showing collagen coils after implantation (arrow). Radiopaque sizing markers range from 2 mm to 6 mm in diameter.

C, DSA image, immediately after coil implantation, demonstrating residual flow at the neck (short arrow) and in the body (long arrow) of the aneurysm cavity.

D, DSA image, 2 weeks after implantation, showing interval progressive aneurysm occlusion, with no residual flow in the aneurysm cavity.