White matter bundle connections

[Mark Vernon]

Hello,

I've run a correlational tractography analysis and observed many results.  I'm interested in tracts/bundles which connect one or more region(s) of interest, particularly the insula.  I've tried using the ROI-based fiber tracking, but I'm not sure if tracts/bundles anatomically connect to the ROI (insula in my case) or if the tracts just happen to pass close to the ROI.

Does anyone know of an atlas/references which describe information about major tract bundles and which cortical (or subcortical) regions they connect to?  Or even evidence suggesting connections if there is some uncertainty?

Thanks for any of your help!

Mark

[Frank Yeh]

Does anyone know of an atlas/references which describe information about major tract bundles and which cortical (or subcortical) regions they connect to?  Or even evidence suggesting connections if there is some uncertainty?

Hope this helps: https://brain.labsolver.org/hcp_trk_atlas.html

 

Thanks for any of your help!

Mark

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[Mark Vernon]

Is there a general rule-of-thumb for exclusion/inclusion threshold for if a white matter tract connects to a region?  85%? 90%

Not sure what most people use.

Thanks again!

Mark

[Mark Vernon]

This is great thank you!  

On Monday, June 17, 2024 at 2:01:51 PM UTC-4 Frank Yeh wrote:

[Frank Yeh]

The exact value depends on the tract and also the data quality.

wk3 video covers some recommendations: practicum.labsolver.org

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