Diffusion Tensor Imaging Tractography of White Matter Tracts in the Equine Brain.
Abstract: Tractography, a noninvasive technique tracing brain pathways from diffusion tensor magnetic resonance imaging (DTI) data, is increasingly being used for brain investigation of domestic mammals. In the equine species, such a technique could be useful to improve our knowledge about structural connectivity or to assess structural changes of white matter tracts potentially associated with neurodegenerative diseases. The goals of the present study were to establish the feasibility of DTI tractography in the equine brain and to provide a morphologic description of the most representative tracts in this species. Postmortem DTI and susceptibility-weighted imaging (SWI) of an equine brain were acquired with a 3-T system using a head coil. Association, commissural, and projection fibers, the three fiber groups typically investigated in tractography studies, were successfully reconstructed and overlaid on SWI or fractional anisotropy maps. The fibers derived from DTI correlate well with their description in anatomical textbooks. Our results demonstrate the feasibility of using postmortem DTI data to reconstruct the main white matter tracts of the equine brain. Further DTI acquisitions and corresponding dissections of equine brains will be necessary to validate these findings and create an equine stereotaxic white matter atlas that could be used in future neuroimaging research.
Copyright © 2020 Boucher, Arribarat, Cartiaux, Lallemand, Péran, Deviers and Mogicato.
Publication Date: 2020-07-30 PubMed ID: 32850994PubMed Central: PMC7406683DOI: 10.3389/fvets.2020.00382Google Scholar: Lookup
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Summary
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
This research demonstrated the feasibility of using Diffusion Tensor Imaging (DTI) tractography, which is a non-invasive brain imaging technique, to trace and investigate the white matter tracts in the brain of horses. This could potentially be useful to study structural connectivity and changes related to neurodegenerative diseases.
Introduction and Background
- The study utilizes Diffusion Tensor Imaging (DTI) tractography, a non-invasive technique that uses magnetic resonance imaging to trace pathways in the brain. This technique has been increasingly employed for the study of brain structures in domestic mammals.
- Specifically, the research aims to explore the application of this technique to the equine species, where it could provide insights into brain structure and connectivity, as well as inform studies on structural changes related to neurodegenerative diseases.
Study Objectives and Methodology
- The main objectives of the study were to assess the feasibility of using DTI tractography in the equine brain and to provide a morphological description of the most representative tracts in the horse brain structure.
- To achieve these goals, the research team acquired DTI and susceptibility-weighted imaging (SWI) of a horse brain using a 3-Tesla system with a head coil. The imagery was then overlaid on SWI or fractional anisotropy maps to reconstruct the fiber pathways in the brain.
Results and Conclusions
- The researchers successfully reconstructed association, commissural, and projection fibers, which are the three fiber groups typically examined in tractography studies. The derived fibers correlated well with descriptions provided in anatomical textbooks, suggesting the validity of the DTI tractography technique.
- The study hence demonstrated that DTI data could be used effectively to reconstruct the white matter tracts of the equine brain, indicating further potential for the application of this technique in equine neuroimaging research.
- The researchers proposed that future work would require additional DTI acquisitions and corresponding dissections of horse brains to further validate these findings. The creation of an equine white matter atlas could support future neuroimaging research efforts.
Cite This Article
APA
Boucher S, Arribarat G, Cartiaux B, Lallemand EA, Péran P, Deviers A, Mogicato G.
(2020).
Diffusion Tensor Imaging Tractography of White Matter Tracts in the Equine Brain.
Front Vet Sci, 7, 382.
https://doi.org/10.3389/fvets.2020.00382 Publication
Researcher Affiliations
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, INSERM, UPS, Toulouse, France.
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, INSERM, UPS, Toulouse, France.
- INSERM UMR1037, Cancer Research Center of Toulouse, Oncopole, Toulouse, France.
- INTHERES, Université de Toulouse, INRA, ENVT, Toulouse, France.
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, INSERM, UPS, Toulouse, France.
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, INSERM, UPS, ENVT, Toulouse, France.
- ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, INSERM, UPS, ENVT, Toulouse, France.
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