Cited by 698Advanced Neuroimaging Techniques and ApplicationsFunctional Brain Connectivity StudiesAdvanced MRI Techniques and Applications

Diffusion MRI of complex neural architecture.

Open access
Tuch, David S., Reese, Timothy G., Wiegell, Mette R., Van J. Wedeen·2003·Neuron

Abstract

While functional brain imaging methods can locate the cortical regions subserving particular cognitive functions, the connectivity between the functional areas of the human brain remains poorly understood. Recently, investigators have proposed a method to image neural connectivity noninvasively using a magnetic resonance imaging method called diffusion tensor imaging (DTI). DTI measures the molecular diffusion of water along neural pathways. Accurate reconstruction of neural connectivity patterns from DTI has been hindered, however, by the inability of DTI to resolve more than a single axon direction within each imaging voxel. Here, we present a novel magnetic resonance imaging technique that can resolve multiple axon directions within a single voxel. The technique, called q-ball imaging, can resolve intravoxel white matter fiber crossing as well as white matter insertions into cortex. The ability of q-ball imaging to resolve complex intravoxel fiber architecture eliminates a key obstacle to mapping neural connectivity in the human brain noninvasively.

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Crossref · 10.1016/s0896-6273(03)00758-x

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Authors
Tuch, D. S., Reese, T. G., Wiegell, M. R., & Wedeen, V. J.
Affiliations
Massachusetts General Hospital (US)
Corresponding author
Tuch, David S.
Venue
Neuron
Publisher
Elsevier BV
Published
2003-12
Volume
40
Issue
5
Pages
885-895
ISSN
0896-6273 (ISSN-L)
OpenAlex
W1997161422
Cited by
698
References
3
Citations by year
2026: 5 · 2025: 9 · 2024: 14 · 2023: 13 · 2022: 27 · 2021: 17 · 2020: 24 · 2019: 32 · 2018: 25 · 2017: 32 · 2016: 28 · 2015: 43 · 2014: 41 · 2013: 45 · 2012: 43
FWCI
24.90
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Massachusetts General Hospital
  • National Institute of Mental Health (MH64044)
  • National Institute of Neurological Disorders and Stroke (K25NS046532, NS46532)
  • National Center for Research Resources (RR 14075, P41RR014075)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
Keywords
Q-ball imaging, diffusion tensor imaging, fiber tractography, human brain connectivity
MeSH terms
Cerebral Cortex, Humans, Nerve Net, Diffusion Magnetic Resonance Imaging

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