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

. 2014 Oct 28;5:216. doi: 10.3389/fneur.2014.00216

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

Copyright © 2014 Campbell, MomayyezSiahkal, Savadjiev, Leppert, Siddiqi and Pike.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

The tractography process propagates streamlines iteratively with the direction of propagation chosen from within the PDF for the direction of fiber propagation. The confidence in this tract segment generated is given by the scaled value of the PDF for the fiber orientation in the direction propagated. The confidence value for a streamline connecting voxel C to voxel A is given by the lowest confidence value for all segments along that streamline. Here, the dashed tract segment, which runs along the edge of the PDF, has the lowest confidence. The scalar connectivity index for connection of voxel C to reference voxel A will be given by the maximal confidence value of all streamlines that connect the two voxels.