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Hi Andreas and Matt,

Yes, that is a good idea! Maybe I should play with the turning angle. I left it at default (I think it is 0.2).

I am trying to analyse the relationships between several occipito-temporal areas, intra- and interhemispherically. The main tracts will be ILF, in the sense of a core and there will be connections in U fiber shape from the different cortical areas to the other, passing via ILF. So I tried to first isolate the ILF, which comes out rather easily, then threshold it very high, like at 1000 and use this core as a waypoint between the cortical areas in question. But with no result.
However when seeding without waypoint I see that most paths go to the area of ILF and they have large intersections there.

Best, and thank you!
Markus





2008/12/5 Matt Glasser <[log in to unmask]>
What pathway are you trying to track?

Peace,

Matt.

-----Original Message-----
From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf
Of Andreas Bartsch
Sent: Friday, December 05, 2008 1:15 PM
To: [log in to unmask]
Subject: [FSL] AW: [FSL] fdt_path intersection vs connectivity

Hi Markus,

may the turning angle?
Cheers-
Andreas

________________________________

Von: FSL - FMRIB's Software Library im Auftrag von Markus Gschwind
Gesendet: Fr 05.12.2008 18:10
An: [log in to unmask]
Betreff: [FSL] fdt_path intersection vs connectivity


Hello!

I have another question regarding the interpretation of the intersection
between paths.

I have two cortical regions A and B from where the (unrestricted) paths
intersect largely but I cannot obtain a direct connectivity (seed A,
waypoint mask B).

If do a tracking from the intersection I have connectivities to both regions
A and B.

How would I interprete this?

Thank you for comments!
Markus



--
Dr. med. Markus Gschwind, M.D.
Laboratory for Neurology and Imaging of Cognition
Dept of Neurosciences
University Medical Center (CMU)
1 Michel-Servet - 1211 GENEVA - CH

Tel 0041 (0) 22 379 5324
Fax 0041 (0) 22 379 5402
email: [log in to unmask]
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