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.
Dynamic CT derived from MDA-MB 435 tumor-bearing nude rats. (a) For CT scans enhanced by PEG12000-Gen4-triiodo, gradual enhancement of the tumor (white arrow) is seen over a period of 35 minutes as the contrast in the inferior vena cava (black arrows) is seen to diminish slowly over time. (b) However, for CT scans enhanced by iohexol, the tumor (white arrows) and inferior vena cava (black arrows) both enhance quickly and show rapid de-enhancement.
