Cited by 506Functional Brain Connectivity StudiesAdvanced Neuroimaging Techniques and ApplicationsComplex Network Analysis Techniques

Studying the human brain anatomical network via diffusion-weighted MRI and graph theory

Iturria-Medina, Yasser, Sotero, Roberto C., Canales-Rodríguez, Erick J., Alemán-Gómez, Yasser, Melie-García, Lester·2008·NeuroImage

Abstract

Our goal is to study the human brain anatomical network. For this, the anatomical connection probabilities (ACP) between 90 cortical and subcortical brain gray matter areas are estimated from diffusion-weighted Magnetic Resonance Imaging (DW-MRI) techniques. The ACP between any two areas gives the probability that those areas are connected at least by a single nervous fiber. Then, the brain is modeled as a non-directed weighted graph with continuous arc weights given by the ACP matrix. Based on this approach, complex networks properties such as small-world attributes, efficiency, degree distribution, vulnerability, betweenness centrality and motifs composition are studied. The analysis was carried out for 20 right-handed healthy subjects (mean age: 31.10, S.D.: 7.43). According to the results, all networks have small-world and broad-scale characteristics. Additionally, human brain anatomical networks present bigger local efficiency and smaller global efficiency than the corresponding random networks. In a vulnerability and betweenness centrality analysis, the most indispensable and critical anatomical areas were identified: putamens, precuneus, insulas, superior parietals and superior frontals. Interestingly, some areas have a negative vulnerability (e.g. superior temporal poles, pallidums, supramarginals and hechls), which suggest that even at the cost of losing in global anatomical efficiency, these structures were maintained through the evolutionary processes due to their…

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Crossref · 10.1016/j.neuroimage.2007.10.060

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  • A large number of graph theoretical measures have been proposed to study network properties of the brain's connectome.

    “A daunting number of graph theoretical measures have been proposed to study the network properties of the brain’s connectome (Bullmore and Sporns, 2009b; Iturria-Medina et al., 2008; Rubinov and Sporns, 2010).”

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Authors
Iturria-Medina, Y., Sotero, R. C., Canales-Rodríguez, E. J., Alemán-Gómez, Y., & Melie-García, L.
Affiliations
Cuban Neuroscience Center (CU)
Venue
NeuroImage
Publisher
Elsevier BV
Published
2008-04
Volume
40
Issue
3
Pages
1064-1076
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2064125324
Cited by
506
References
3
Citations by year
2026: 9 · 2025: 11 · 2024: 10 · 2023: 21 · 2022: 23 · 2021: 22 · 2020: 27 · 2019: 20 · 2018: 24 · 2017: 36 · 2016: 34 · 2015: 34 · 2014: 40 · 2013: 43 · 2012: 47
FWCI
9.85
Type
journal article
Language
en
Open access
closed
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Complex Network Analysis Techniques
Keywords
diffusion-weighted imaging, weighted complex networks, small-world property, local efficiency, global efficiency, network vulnerability, betweenness centrality, network motifs, putamen, precuneus, insula
MeSH terms
Adult, Algorithms, Brain, Humans, Image Processing, Computer-Assisted, Male, Nerve Fibers, Nerve Net, Neural Pathways, Diffusion Magnetic Resonance Imaging

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