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.
Diameter and insertion depth errors. Left, diameter error (OCT–µCT and IVUS–µCT) of holes in OCD and CD. Right, insertion depth error (OCT–µCT and IVUS–µCT) of holes in OCD and CD. Drill bits had a diameter of 0.1, 0.5, 1, 2 and 3 mm. The aimed for drill depth was 4 mm for OCD and 1 mm for CD. “*” indicates a significant difference between populations.
