Exploring the Anatomical Basis of Effective Connectivity Models with DTI-Based Fiber Tractography
Diffusion tensor imaging (DTI) is considered to be a promising tool for revealing the anatomical basis of functional networks. In this study, we investigate the potential of DTI to provide the anatomical basis of paths that are used in studies of effective connectivity, using structural equation mod...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | International Journal of Biomedical Imaging |
| Online Access: | http://dx.doi.org/10.1155/2008/423192 |
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| _version_ | 1832563901567336448 |
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| author | Hubert M. J. Fonteijn David G. Norris Frans A. J. Verstraten |
| author_facet | Hubert M. J. Fonteijn David G. Norris Frans A. J. Verstraten |
| author_sort | Hubert M. J. Fonteijn |
| collection | DOAJ |
| description | Diffusion tensor imaging (DTI) is considered to be a promising tool for revealing the anatomical basis of functional networks. In this study, we investigate the potential of DTI to provide the anatomical basis of paths that are used in studies of effective connectivity, using structural equation modeling. We have taken regions of interest from eight previously published studies, and examined the connectivity as defined by DTI-based fiber tractography between these regions. The resulting fiber tracts were then compared with the paths proposed in the original studies. For a substantial number of connections, we found fiber tracts that corresponded to the proposed paths. More importantly, we have also identified a number of cases in which tractography suggested direct connections which were not included in the original analyses. We therefore conclude that DTI-based fiber tractography can be a valuable tool to study the anatomical basis of functional networks. |
| format | Article |
| id | doaj-art-4080e2d388c540608095ec935face297 |
| institution | Kabale University |
| issn | 1687-4188 1687-4196 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomedical Imaging |
| spelling | doaj-art-4080e2d388c540608095ec935face2972025-02-03T01:12:14ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962008-01-01200810.1155/2008/423192423192Exploring the Anatomical Basis of Effective Connectivity Models with DTI-Based Fiber TractographyHubert M. J. Fonteijn0David G. Norris1Frans A. J. Verstraten2Helmholtz Institute, Universiteit Utrecht, Heidelberglaan 2, 3584 CS Utrecht, The NetherlandsF.C. Donders Centre for Cognitive Neuroimaging, Radboud University Nijmegen, P.O. Box 9102, 6500 HC Nijmegen, The NetherlandsHelmholtz Institute, Universiteit Utrecht, Heidelberglaan 2, 3584 CS Utrecht, The NetherlandsDiffusion tensor imaging (DTI) is considered to be a promising tool for revealing the anatomical basis of functional networks. In this study, we investigate the potential of DTI to provide the anatomical basis of paths that are used in studies of effective connectivity, using structural equation modeling. We have taken regions of interest from eight previously published studies, and examined the connectivity as defined by DTI-based fiber tractography between these regions. The resulting fiber tracts were then compared with the paths proposed in the original studies. For a substantial number of connections, we found fiber tracts that corresponded to the proposed paths. More importantly, we have also identified a number of cases in which tractography suggested direct connections which were not included in the original analyses. We therefore conclude that DTI-based fiber tractography can be a valuable tool to study the anatomical basis of functional networks.http://dx.doi.org/10.1155/2008/423192 |
| spellingShingle | Hubert M. J. Fonteijn David G. Norris Frans A. J. Verstraten Exploring the Anatomical Basis of Effective Connectivity Models with DTI-Based Fiber Tractography International Journal of Biomedical Imaging |
| title | Exploring the Anatomical Basis of Effective Connectivity Models with DTI-Based Fiber Tractography |
| title_full | Exploring the Anatomical Basis of Effective Connectivity Models with DTI-Based Fiber Tractography |
| title_fullStr | Exploring the Anatomical Basis of Effective Connectivity Models with DTI-Based Fiber Tractography |
| title_full_unstemmed | Exploring the Anatomical Basis of Effective Connectivity Models with DTI-Based Fiber Tractography |
| title_short | Exploring the Anatomical Basis of Effective Connectivity Models with DTI-Based Fiber Tractography |
| title_sort | exploring the anatomical basis of effective connectivity models with dti based fiber tractography |
| url | http://dx.doi.org/10.1155/2008/423192 |
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