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  Dynamic Functional Connectivity in Event-Related fMRI and its implications in Epilepsy

Sahib, A., Erb, M., Scheffler, K., Ethofer, T., & Focke, N. (2017). Dynamic Functional Connectivity in Event-Related fMRI and its implications in Epilepsy. Poster presented at 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017), Honolulu, HI, USA.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0000-C48D-4 Version Permalink: https://hdl.handle.net/21.11116/0000-0000-F2AD-C
Genre: Poster

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 Creators:
Sahib, AK, Author
Erb, M1, 2, Author           
Scheffler, K1, 2, Author           
Ethofer, T, Author
Focke, N, Author
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Abstract: To assess the impact of repetition time (TR) and window size on the temporal features of BOLD functional connectivity (FC) using a sliding window approach in event-related fMRI. in addition, test the feasibility of this approach in epilepsy. We calculated the functional connectivity degree (FCD) by counting the total number of connections of a given voxel above a predefined threshold based on Pearson correlation. In summary, we showed that dynamic FCD transients are better detectable with sub-second TR than conventional TR, indicating a potential to study the temporal characteristics of interictal epileptiform discharges and seizures in epilepsy patients.

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 Dates: 2017-04-27
 Publication Status: Issued
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 Identifiers: BibTex Citekey: KaulSahibESEF2017
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Title: 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017)
Place of Event: Honolulu, HI, USA
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Title: 25th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2017)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 5389 Start / End Page: - Identifier: -