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.
CHO detectability indices estimated (solid circles) for the fourth largest sphere (1.4 cm2 cross‐sectional area) for images reconstructed with three photon levels (40, 80, and 120 kc/view) using the ICTV‐PAPA method and the GPF‐EM method (solid squares) at 120 kc/view level. The solid lines connecting the data points are provided as a visual guide. [Color figure can be viewed at wileyonlinelibrary.com]
