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.
Bar graphs with error bars showing the mean and standard deviation of pre- and post-contrast MTR values at ± 3.5 ppm, respectively, in the GM and WM of each patient. In order to minimize the noise in the measurement and imperfect segmentation, only MTR values greater than 0 were included.
