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.
Thresholded DPPR results in the 10 older subjects. DPPR measurements are masked magenta at a threshold of 49°, which is the 99th percentile obtained from the 10 younger subjects. Subject identification is in the upper-left corner of each panel, followed by subject age, and percentage of pixels above the threshold. Magenta data points are considered suspect. DPPR is color-coded up to the 49° threshold
