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.
The male phantom with Heart-2 was oriented farthest from the lung axially as shown in coronal slices of Figure 2. Therefore, only when the misalignment between lung and heart was −4 cm (indicated in transaxial and coronal-fused images) did artifactual decreases occur in the short-axis image and the polar map because the attenuation was under-corrected at the indicated region.
