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.
Image registration, lesion extraction, and frequency map reconstruction. (A) Gadolinium-enhanced T1-weighted images are registered onto a standard averaged MRI (MNI152) using a normalized mutual information algorithm. Gd-enhanced lesions are extracted and assigned a value of “1” to voxels within the lesion and “0” to voxels not within the lesion. (B) Binary data containing the locations of Gd-enhanced lesions are summed, and a lesion frequency map is reconstructed.
