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.
Improved low‐contrast resolution after MENLM filtering (right) comparing to the FBP image (left). Arrows indicate the locations of low‐contrast objects (top: 6 mm rods; Bottom: 5 mm rods). The mean and standard deviation of CT numbers inside the dotted ROI were 99.3 ± 5.5 (left) and 98.6 ± 1.0 HU (right), respectively. W/L = 100/100 HU.
