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.
Differences in lumen segmentation by an experienced (reader 3) and an inexperienced (reader 4) user. The inexperienced and the experienced users’ ROIs are shown in blue and red, respectively on a magnitude image of the phase contrast scan. Lumen areas obtained by the inexperienced user are larger by 14 to 35%. However, this was associated with only a 3% difference in the TCBF values obtained by these users. DIFF % = Absolute [Difference / Mean] *100.
