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.
Demonstration of the measurements involved in obtaining Evans’ index in a normal (a) and an NPH (b) patient. A is the distance between the widest part of the frontal horns. B is the width of the widest part of the skull. Evans’ index is computed as A/B.
