Improved delineation of short cortical association fibers and gray/white matter boundary using whole-brain three-dimensional diffusion tensor imaging at submillimeter spatial resolution.

Journal Article (Journal Article)

Recent emergence of human connectome imaging has led to a high demand on angular and spatial resolutions for diffusion magnetic resonance imaging (MRI). While there have been significant growths in high angular resolution diffusion imaging, the improvement in spatial resolution is still limited due to a number of technical challenges, such as the low signal-to-noise ratio and high motion artifacts. As a result, the benefit of a high spatial resolution in the whole-brain connectome imaging has not been fully evaluated in vivo. In this brief report, the impact of spatial resolution was assessed in a newly acquired whole-brain three-dimensional diffusion tensor imaging data set with an isotropic spatial resolution of 0.85 mm. It was found that the delineation of short cortical association fibers is drastically improved as well as the definition of fiber pathway endings into the gray/white matter boundary-both of which will help construct a more accurate structural map of the human brain connectome.

Full Text

Duke Authors

Cited Authors

  • Song, AW; Chang, H-C; Petty, C; Guidon, A; Chen, N-K

Published Date

  • November 2014

Published In

Volume / Issue

  • 4 / 9

Start / End Page

  • 636 - 640

PubMed ID

  • 25264168

Pubmed Central ID

  • PMC4238254

Electronic International Standard Serial Number (EISSN)

  • 2158-0022

Digital Object Identifier (DOI)

  • 10.1089/brain.2014.0270


  • eng

Conference Location

  • United States