BrainVISA

Hi,

thanks. can i undo the visualization artefact, i.e. get all the vertices labeled within Anatomist?

merci,
-joost

Hi, i'm using the latest BV version (4.1). i'm doing Gyral Parcellation, choosing 'Cortical Ribbon'. the process produces a parcellation as on the attached image. my question: as can be seen on the attached image, the parcellations are not adjacent, i.e. there's an area between each of the the parce...

Hi, i found a solution for this problem which i share here as others may want to do something similar. I took the source code of Peter Kochunov's tools, set a variable called minsize to 1 in his sulcallength program and compiled. you can then use his sulcallength plugin from the BV GUI to generate c...

Hi, apologies if this has been asked before, i couldn't find the answer in the brainvisa/anatomist forums. for a given subject i have a automatically labeled L*.arg with Tmtktri_Mesh. now i want to select a fold (mesh) from the Tmtktri_Mesh and save it as a separate mesh. e.g. i want to select _all_...

Hi,

it worked.

merci,
-joost

Hi,

i'm currently using brainvisa-Mandriva-2008.0-x86_64-4.1.0-2011_05_16 as my build-stamp is:

Linux joost-laptop 2.6.35-28-generic #49-Ubuntu SMP Tue Mar 1 14:39:03 UTC 2011 x86_64 GNU/Linux

merci,
-joost

Hi, an old thread but nevertheless: has this been fixed? the reason for asking: i'm using Anatomist included in BrainVisa 4.1 under Gnome in Ubuntu 10.10. all works fine except when i try to save any file, Anatomist crashes with on screen output: >anatomist: symbol lookup error: /usr/lib/libpangocai...

Hi, aim: to measure sulcal depth in a group of patients and controls. question: if i increase the "pressure" when doing "compute cortex image" in _some_ brains in my sample BUT NOT in other brains in my sample, will this differentially affect measures such as "sulcal depth&q...

Hi guys,

When is it (morphologist) coming?

merci,
-joost

Hi, when using "Morphometry Statistics" is there a way to get summary scores for hemispheres? e.g. i would like to know the mean hemispheric "fold_open" value, now i have to calculate averages using all the separate sulcus-output .dat files, i wonder if there's a quicker way (the...

Hi, you wrote: "Fold opening, as we calculate it, is a more or less indirect measurement of the width of the CSF in the sulcus: it is the volume of CSF in the sulcus, divided by the surface of the skeleton mesh" with "skeleton mesh" you refer to the median sulcal mesh, right? mer...

Hi, thanks. as you said, "hull junction length" represents an estimate of the top length of the sulcus. in the graph files that are NOT yet labelled i found a graph node called "brain hull" but i could not get it visualized. is the brain hull that's used to calculate hull junctio...

Hi,

thanks a lot. you once said that sulcal CSF was estimated used to calculate the "fold_opening" used in 3.1 graphs. what exactly does "fold_opening" represent?

merci,
-joost

Hi, thanks. a few additional questions: when doing "Morphometry statistics" i choose as a model: /usr/local/brainvisa/share/shfj-3.2/models/3.1/Lfolds_noroots_fd4_2009/Lfolds-model-fd4.arg i get the following descriptors: subject label side valid extremitiesValid extremity1x extremity1y ex...

Hi, yes, sorry for being thick: is it a kind of integral of the geodesic distance between the top (hull) and bottom (fundus) lines? there are no "x-number" of separate "depth lines" connecting the top and bottom line over which the distance is measured and then averaged? merci, -...