 |
 |
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] http://labnic.unige.ch