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.
V/Q PET-CT, ventilation on the top and perfusion on the bottom, described as positive by one nuclear physician out of four with a mismatched perfusion defect on lower lobe (arrows), excluded by the three others because of a linear pattern of the defect and not wedge shape.
