[Freesurfer] How to map ROI to native space

2012-09-17 Thread Kong, Li
Hi all, I have one problem about rending ROI from VBM onto Freesurfer average surface and extracting thickness in this ROI region. I have already extracted one cluster (my ROI ) from VBM_derived group difference t_statistic map. I got a lot of information from this mail list, especially Alex's

Re: [Freesurfer] mris_anatomical_stats on multiple subjects

2012-09-17 Thread Garikoitz Lerma-Usabiaga (Gari)
Hi Li, there you go, Gari https://docs.google.com/open?id=0Byf71TWfovledFhJYWN2cGtHV00 On 2012-09-15, at 19:38, "Kong, Li" wrote: > Hi Gari, > I saw your email to Alex about your method obtaining statistics from multiple > subjects with Python script. Could you send the code to me? > > Th

Re: [Freesurfer] Numerical result out of range error

2012-09-17 Thread Blessy M
Does anyone have any suggestions on what might have gone wrong here? Should I send the image? On Fri, Sep 14, 2012 at 3:14 PM, Blessy M wrote: > No, the cerebellum is not attached. > > On Fri, Sep 14, 2012 at 1:42 PM, Blessy M wrote: > >> I have a MPRAGE scan, with slight atrophy on right side

Re: [Freesurfer] Numerical result out of range error

2012-09-17 Thread Bruce Fischl
that is a pretty big defect (vertices=27939). Can you check the ?h.orig.nofix and see if anything is dramatically wrong with it? Is the skull attached? The cerebellum? If you upload it we can certainly take a look cheers Bruce On Mon, 17 Sep 2012, Blessy M wrote: Does anyone have any suggest

Re: [Freesurfer] recon-all error

2012-09-17 Thread Bruce Fischl
Hi Harry what system and shell are you running on? cheers Bruce On Mon, 17 Sep 2012, hhal5...@uni.sydney.edu.au wrote: > Hello, > > I am relatively new to FreeSurfer, so this may be a silly question, but when > i run any of the recon-all commands such as: > > recon-all -autorecon-pial -subjid

Re: [Freesurfer] problem with tksurfer

2012-09-17 Thread Douglas N Greve
Yes, just add --trgsubject fsaverage doug On 09/15/2012 07:02 PM, Maryam Vaziri Pashkam wrote: > Hi Doug, > > This is a separate question but related to the volume to surface > conversion. Is it possible to sample the sig.nii.gz file to the > fsaverage surface instead of the individual subject

Re: [Freesurfer] How to map ROI to native space

2012-09-17 Thread Douglas N Greve
Hi Li, as suggested by Voet, the best way to do it will be to map the VBM results back to the individual subject. Unfortunately, this is an FSL operation, so you should contact the FSL list as to how to do this. doug On 09/17/2012 06:37 AM, Kong, Li wrote: > > Hi all, > > I have one problem abou

Re: [Freesurfer] How to map ROI to native space

2012-09-17 Thread Kong, Li
Hi Doug, Thanks for your idea! I will try FSL. Li -Ursprüngliche Nachricht- Von: freesurfer-boun...@nmr.mgh.harvard.edu [mailto:freesurfer-boun...@nmr.mgh.harvard.edu] Im Auftrag von Douglas N Greve Gesendet: 17 September 2012 16:06 An: freesurfer@nmr.mgh.harvard.edu Betreff: Re: [Free

Re: [Freesurfer] mris_preproc --fsgd

2012-09-17 Thread spaeth
Good news, I recreated the FSGD file from scratch on a linux workstation using the exact same syntax and list of inputs and re-ran the mri_preproc and it worked this time. The original file that I was having issues with was also created on a linux workstation, however I had copied the inputs from a

[Freesurfer] Intracranial volume discrepancies

2012-09-17 Thread Nikhil Chandra
Hi everyone, We have run FreeSurfer on roughly 60 subjects for a study, and are noticing some strange discrepancies for intracranial volume in aseg.stats for 8 of them. Here is a subset of what we see in one of the "bad" aseg.stats files: # Measure CorticalWhiteMatter, CorticalWhiteMatterVol,

Re: [Freesurfer] Intracranial volume discrepancies

2012-09-17 Thread Martin Reuter
Hi Nikhil, this indicates a problem with the talairach.xfm computation. The ICV is computed from the Talairach transform (which basically determines how much stretching is needed to get this image to the talairach space where the ICV is approx known). There is no mask. See http://www.freesurfer.

[Freesurfer] mapping an set of talairach points

2012-09-17 Thread Katie Bettencourt
I'm still trying to figure out a way to display an ROI made elsewhere on my freesurfer data. I can get all ROI I need in freesurfer in talairach points (ie. a list of talairach points that cover the entirety of the ROI space), but as far as I can see, I can only load one talairach point at a time

Re: [Freesurfer] mapping an set of talairach points

2012-09-17 Thread Bruce Fischl
Hi Katie you might be able to create a label file with the tal coords, then use mri_label2label to map it from tal to the individual subject, then load it in tksurfer which will map it to the surface. It will probably look spotty though. cheers Bruce On Mon, 17 Sep 2012, Katie Bettencourt

[Freesurfer] general questions

2012-09-17 Thread Deirdre O Shea
Hi all, I'm new to FreeSurfer and so have a few questions that you may be able to anwser. My first question is ; when I am making white matter edits do I need to edit every single slice where the inaccuracy is or would every second or third slice suffice to prompt FreeSurfer to autocorrect? Seco

Re: [Freesurfer] mapping an set of talairach points

2012-09-17 Thread Katie Bettencourt
Hi Bruce, So my understanding of the label file is that it has a list of the # of vertices in the label, then each line is the vertex number followed by the RAS coordinates and then some 5th column. I think you are saying that I could use my text file of talairach coordinates (with each line as a

Re: [Freesurfer] mapping an set of talairach points

2012-09-17 Thread Bruce Fischl
Hi Katie if you set the vertex numbers to -1 then tksurfer will search for the closest vertex to each point and fill them in. So start with a list of tal points (and -1 for the vertex), then use mri_label2label to map them to the individual subject space and visualize it in tkmedit or freeview

Re: [Freesurfer] mapping an set of talairach points

2012-09-17 Thread Douglas N Greve
I think mri_label2label will do the same thing On 09/17/2012 01:25 PM, Bruce Fischl wrote: > Hi Katie > > if you set the vertex numbers to -1 then tksurfer will search for the > closest vertex to each point and fill them in. So start with a list of > tal points (and -1 for the vertex), then use

[Freesurfer] Fwd: Freeview display errors - Ubuntu 12.04

2012-09-17 Thread Richard Binney
-- Forwarded message -- From: Richard Binney Date: Thu, Sep 13, 2012 at 2:01 PM Subject: Freeview display errors - Ubuntu 12.04 To: freesurfer@nmr.mgh.harvard.edu Hi Freesurfers, I've recently moved onto Ubuntu 12.04. The Freesurfer installation has required me to download vario

Re: [Freesurfer] Numerical result out of range error

2012-09-17 Thread Blessy M
So the left side has gone all the way through, and "lh.volume" was created, but it looks like the right side has some files missing. Can I just upload the raw data file? Should I attach it in my email? On Mon, Sep 17, 2012 at 9:40 AM, Bruce Fischl wrote: > that is a pretty big defect (vertices=2

Re: [Freesurfer] Numerical result out of range error

2012-09-17 Thread Bruce Fischl
you can ftp it Bruce On Mon, 17 Sep 2012, Blessy M wrote: So the left side has gone all the way through, and "lh.volume" was created, but it looks like the right side has some files missing. Can I just upload the raw data file? Should I attach it in my email? On Mon, Sep 17, 2012 at 9:40 AM, B

Re: [Freesurfer] recon-all error

2012-09-17 Thread hhal5...@uni.sydney.edu.au
Hi Bruce, I am running on Linux-centos4-stable-pub-v5.1.0 and using bash. Though I have tried using csh and tcsh, but the same error comes up. Cheers, Harry From: freesurfer-boun...@nmr.mgh.harvard.edu [freesurfer-boun...@nmr.mgh.harvard.edu] on behalf

Re: [Freesurfer] recon-all error

2012-09-17 Thread hhal5...@uni.sydney.edu.au
Also we're using ubuntu 12.04 LTS. From: freesurfer-boun...@nmr.mgh.harvard.edu [freesurfer-boun...@nmr.mgh.harvard.edu] on behalf of hhal5...@uni.sydney.edu.au [hhal5...@uni.sydney.edu.au] Sent: Tuesday, 18 September 2012 10:54 AM To: Bruce Fischl Cc: fre

[Freesurfer] AR1 issues

2012-09-17 Thread Skyler Gabriel Shollenbarger
Hello, After running -autorecon1, there were issues with finding the best water threshold for skull stripping (one value would leave excess anatomy and the next lowest value would leave regions in the cerebellum missing). FS appears to differentiate brain matter from extraneous anatomy quite w

Re: [Freesurfer] AR1 issues

2012-09-17 Thread Bruce Fischl
Definitely the one that leaves stuff around and doesn't strip any brain. Usually that won't be a problem Bruce On Sep 17, 2012, at 10:20 PM, Skyler Gabriel Shollenbarger wrote: > Hello, > > After running -autorecon1, there were issues with finding the best water > threshold for skull strip