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.
White matter degeneration leads to increased interstitial space at older ages. Intracellular water diffusion is restricted, while nearby extracellular water is hindered by myelin layers and other tissue components (purple). In the deep interstitial spaces, water is far enough from boundaries such that it can diffuse freely within a short diffusion time (blue).
