Cited by 2,747Advanced Neuroimaging Techniques and ApplicationsAdvanced MRI Techniques and ApplicationsFunctional Brain Connectivity Studies

Diffusion tensor imaging of the brain

Open access
Alexander, Andrew L., Lee, Jee Eun, Lazar, Mariana, Field, Aaron S.·2007·Neurotherapeutics

Abstract

Diffusion tensor imaging (DTI) is a promising method for characterizing microstructural changes or differences with neuropathology and treatment. The diffusion tensor may be used to characterize the magnitude, the degree of anisotropy, and the orientation of directional diffusion. This review addresses the biological mechanisms, acquisition, and analysis of DTI measurements. The relationships between DTI measures and white matter pathologic features (e.g., ischemia, myelination, axonal damage, inflammation, and edema) are summarized. Applications of DTI to tissue characterization in neurotherapeutic applications are reviewed. The interpretations of common DTI measures (mean diffusivity, MD; fractional anisotropy, FA; radial diffusivity, D(r); and axial diffusivity, D(a)) are discussed. In particular, FA is highly sensitive to microstructural changes, but not very specific to the type of changes (e.g., radial or axial). To maximize the specificity and better characterize the tissue microstructure, future studies should use multiple diffusion tensor measures (e.g., MD and FA, or D(a) and D(r)).

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Crossref · 10.1016/j.nurt.2007.05.011

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  • Long data acquisitions possible in ex vivo DTI allow high spatial resolution without image corruption due to motion or breathing that are common in in vivo DTI.

    “We leveraged the ability of long data acquisitions that are possible in ex vivo DTI to achieve a high spatial resolution, without suffering from image corruption due to motion or breathing that are common in in vivo DTI [12,13].”

    From Diffusion tensor imaging reveals whole-brain microstructural changes in the P301L mouse model of tauopathy. (2020) · cites this paper as [13]

    The Diffusion-Weighted Image Acquisition section says subject motion can corrupt diffusion-weighted images, and Protocol Considerations discusses scan-time and spatial-resolution constraints. But the paper does not state that ex vivo DTI permits long acquisitions without motion or breathing artifacts, so it supports only the general imaging considerations, not the ex vivo comparison. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • White matter alterations can be detected in vivo by diffusion tensor imaging (DTI).

    “White matter alterations can be detected in vivo by diffusion tensor imaging (DTI) (Alexander et al., 2007).”
  • Diffusion-weighted imaging probes the directional diffusivity of water molecules and can yield information about the microstructural properties of brain tissue.

    “Diffusion-weighted imaging is a MRI technique that probes the directional diffusivity of water molecules and can, thus, yield information about the microstructural properties of brain tissue [11][12][13].”
  • Increased MD in these regions suggests reduced white matter density and potential myelin breakdown associated with an adult ADHD diagnosis.

    “More specifically, increased MD in the left middle temporal gyrus, right internal capsule, and right midbrain suggests reduced white matter density and potential myelin breakdown associated with an adult ADHD diagnosis [4], which is in agreement with in increased MD found in previous studies in children and adolescents with ADHD [47].”

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Research works printed but not linked: 7

  1. Pruessmann KP, Weiger M, Scheidegger MB, Boesiger P. SENSE: sensitivity encoding for fast MRI. Magn Reson Med 1999;42:952-962.
  2. Jones DK, Horsfield MA, Simmons A. Optimal strategies for measuring diffusion in anisotropic systems by magnetic reso- nance imaging. Magn Reson Med 1999;42:515-525.
  3. Alexander AL, Hasan K, Kindlmann G, Parker DL, Tsuruda JS. A geometric comparison of diffusion anisotropy measures. Magn Reson Med 2000;44:283-291.
  4. Pajevic S, Pierpaoli C. Color schemes to represent the orientation of anisotropic tissues from diffusion tensor data: application to white matter fiber tract mapping in the human brain. Magn Reson Med 1999;42:526 -540.
  5. Wu YC, Field AS, Chung MK, Badie B, Alexander AL. Quan- titative analysis of diffusion tensor orientation: theoretical frame- work. Magn Reson Med 2004;52:1146 -1155.
  6. Basser PJ, Pajevic S. Statistical artifacts in diffusion tensor MRI (DT-MRI) caused by background noise. Magn Reson Med 2000; 44:41-50.
  7. Lazar M, Weinstein DM, Tsuruda JS, et al. White matter trac- tography using tensor deflection. Hum Brain Mapp 2003;18:306 - 321.

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Authors
Alexander, A. L., Lee, J. E., Lazar, M., & Field, A. S.
Affiliations
University of Wisconsin–Madison (US)
Corresponding author
Alexander, Andrew L.
Venue
Neurotherapeutics
Publisher
Elsevier BV
Published
2007-07
Volume
4
Issue
3
Pages
316-329
ISSN
1878-7479 (ISSN-L)
OpenAlex
W2004006028
Cited by
2,747
References
126
Citations by year
2026: 148 · 2025: 191 · 2024: 177 · 2023: 163 · 2022: 218 · 2021: 259 · 2020: 242 · 2019: 255 · 2018: 199 · 2017: 186 · 2016: 170 · 2015: 137 · 2014: 109 · 2013: 80 · 2012: 49
FWCI
4.13
Type
journal article
Language
en
Open access
Locations
  • Neurotherapeutics (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Multiple Sclerosis Society
  • Dana Foundation
  • Multiple Sclerosis Society
  • National Institutes of Health
  • National Institute of Mental Health (R01MH062015, MH 62015, P50MH069315)
  • National Institute on Drug Abuse (R21DA015879)
  • National Institute of Neurological Disorders and Stroke (NS050466, R01NS050466)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD35476)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
Keywords
diffusion tensor imaging, white matter microstructure, fractional anisotropy, mean diffusivity, axial diffusivity, radial diffusivity, white matter pathology, ischemia, myelination, axonal injury, neuroinflammation, edema
MeSH terms
Brain, Image Processing, Computer-Assisted, Anisotropy, Diffusion Magnetic Resonance Imaging

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