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.
Panel A shows nigrosome-1, seen as the hyperintense region embedded in the T2-weighted substantia nigra, in a control subject. The yellow arrows point to the hyperintense region defining nigrosome-1. A view of a T2-weighted substantia nigra in a PD subject is seen in B. No hyperintense region is seen in the T2-weighted substantia nigra of the PD subject. Slices in both frames are placed 2 slices (or 4 mm) below the red nucleus.
