Figure 2.
A schematic diagram of the contrast phantom. Physical densities of the inserts (g/cm3) are shown in the parentheses.
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.