Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

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.

View full-text article in PMC

. 2019 Dec 9;7(1):26–35. doi: 10.1002/acn3.50962

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2019 The Authors. Annals of Clinical and Translational Neurology published by Wiley Periodicals, Inc on behalf of American Neurological Association.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

(A and B) Example SWI images at the level of the substantia nigra from a control participant (A) and a patient with Parkinson’s disease (B). The dorsal nigral hyperintensity can be seen in the control participant (red arrows), but is absent in the patient with Parkinson’s disease. (C and D) images used in quantification of the DNH signal. (C) A template image showing the average normalized SWI intensity across 32 healthy control subjects. (D) regions of interest from the left (blue) and right (red) DNH were used to calculate the mean DNH signal intensity in each participant. Abbreviations: SWI, susceptibility‐weighted imaging; DNH, dorsal nigral hyperintensity.