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  Validation of tractography against in vivo tracing in the macaque visual system: effect of distance correction

Azadbakht, H., Parkes, L., Haroon, H., Augath, M., Logothetis, N., de Crespigny, A., et al. (2012). Validation of tractography against in vivo tracing in the macaque visual system: effect of distance correction. Poster presented at 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012), Melbourne, Australia.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-A535-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-A536-8
Genre: Poster

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 Creators:
Azadbakht , H, Author
Parkes, LM, Author
Haroon, HA, Author
Augath, M1, 2, Author              
Logothetis, NK1, 2, Author              
de Crespigny, A, Author
D’Arceuil, HE, Author
Parker, GJM, Author
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: Validation of diffusion imaging has proved difficult due to the lack of an adequate gold-standard. In this work, the macaque visual system is used as a model, in which due to an extensive literature of in-vivo and post-mortem tracer studies, true connections are well-established. We performed probabilistic tractography on diffusion imaging data from two in-vitro macaque brains, and comparisons were made between identified connections at different thresholds of connection strength, and connections identified in the visual system wiring map of Felleman & van Essen. The effects of streamline-length based correction of the distance bias of probabilistic tractography were also explored.

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 Dates: 2012-05
 Publication Status: Published in print
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Title: 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012)
Place of Event: Melbourne, Australia
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Title: 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 1104 Start / End Page: - Identifier: -