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.
Collateral vascular response and severity of leukoaraiosis. (panel A: subtle FVH degree in the presence of severe WMH; panel B: prominent FVH is evident in AIS subject with mild WMH). The extent of leptomeningeal collateral vessel recruitment as measured by FVH degree is inversely associated with WMHV.
