Fig. 2.
Generation of four different semiautomatic ROIs superimposed on a white light background image. Isointensity lines are displayed ranging from blue (10% maximum intensity) to red (90% maximum intensity).
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.