Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Graph shows percentage of completely occluded aneurysms according to sac-to-neck size ratio at completion of the initial endovascular treatment in group A (neck ≤ 4 mm) and group B (neck >4 mm). Dark gray bars indicate ratio ≥3; medium gray bars, ratio 1.5–3; light gray bars, ratio <1.5.
