Re: [Freesurfer] Xhemi results

2013-07-11 Thread amirhossein manzouri
Thanks Doug, When I overlay the results on L R , I see different patterns on each hemisphere. Is it something that I don't understand correctly? BR On Wed, Jul 10, 2013 at 5:45 PM, Douglas N Greve gr...@nmr.mgh.harvard.eduwrote: On 07/10/2013 01:26 AM, amirhossein manzouri wrote: Dear Doug

Re: [Freesurfer] Fwd: Fwd: how to use mris_register?

2013-07-11 Thread fatma zribi
Dear Bruce, Finally the function work well. Thank you for your help. With best regards, Fatma 2013/7/10 fatma zribi zribi.fa...@gmail.com SURFACE INFO type: MRIS_TRIANGULAR_SURFACE=MRIS_ICO_SURFACE num vertices: 143704 num faces : 287404

[Freesurfer] How to use read_curv?

2013-07-11 Thread fatma zribi
Dear Bruce, Now i would like to use the function read_curv but I have a problem of dimension .. curv is a vector of [143704,1] and vertices must be a matrix of [3, 143704] Would you mind help me and send an exemple of the use of the function wiht the visualisation of the brain [curv, fnum] =

Re: [Freesurfer] Segfault error

2013-07-11 Thread Rune Frandsen
mri_convert just starts the man page for mri_convert. I have been looking at other things and 3D view in FSL also crashes with a 2657 segmentation fault and a core dump. I think the problem is in the virtualized 3D driver or something like that. It seems that CentOS 6.4 does have some problems

Re: [Freesurfer] displaying labels from old session onto new session

2013-07-11 Thread Bianca van Kemenade
Well the situation is as follows: I had a polar angle session, of which I only have the labels and the anatomical (not inflated) left due to a computer crash. In a different session, I scanned both my main experiment and the eccentricity runs. Since the eccentricity was in the same session as the

Re: [Freesurfer] polar angle and eccentricity with different parameters

2013-07-11 Thread Bianca van Kemenade
Ok thank you, I'll analyse them separately. On Wed, Jul 10, 2013 at 6:33 PM, Douglas N Greve gr...@nmr.mgh.harvard.eduwrote: Hi Bianca, it is not currently possible to this since it expects to have one cycle duration. You can analyze them separately, then create a field sign map outside of

Re: [Freesurfer] mri_nu_correct.mni

2013-07-11 Thread Cristian Paz
Hi Anna and all Freesurfers, I have sort of the same problem. I know there is a flag called --noconform - but it doesnt seem to work on my data with mri_nu_correct.mni . (does not recognize the flag ) I also tried the flag --cm which is supposed to only minimally conform - but here I also got

[Freesurfer] large SD of aparc in one group

2013-07-11 Thread L. Koenders
Dear FreeSurfer experts, We have a question regarding the aparc output from the stats files, and hopefulle you can help us. We have 4 independent groups, of about 30 subjects per group, all scanned using the same protocal on the same MRI scanner. We ran the cross sectional FreeSurfer (5.2.0,

Re: [Freesurfer] Fwd: Fwd: how to use mris_register?

2013-07-11 Thread Bruce Fischl
glad to hear it Bruce On Thu, 11 Jul 2013, fatma zribi wrote: Dear Bruce, Finally the function work well. Thank you for your help. With best regards, Fatma 2013/7/10 fatma zribi zribi.fa...@gmail.com SURFACE INFO type    :

Re: [Freesurfer] Fwd: Fwd: how to use mris_register?

2013-07-11 Thread fatma zribi
Dear Bruce, thank you very much with best regards, Fatma 2013/7/11 Bruce Fischl fis...@nmr.mgh.harvard.edu glad to hear it Bruce On Thu, 11 Jul 2013, fatma zribi wrote: Dear Bruce, Finally the function work well. Thank you for your help. With best regards, Fatma 2013/7/10 fatma

Re: [Freesurfer] How to use read_curv?

2013-07-11 Thread Bruce Fischl
Hi Fatma I don't understand your question. read_curv returns a scalar field over the surface, not the surface itself, which is why it is nvertices x 1. Use read_surf to read the surface topology in cheers Bruce On Thu, 11 Jul 2013, fatma zribi wrote: Dear Bruce, Now i would like to use

Re: [Freesurfer] mri_nu_correct.mni

2013-07-11 Thread Bruce Fischl
Hi Cristian and Anna just do it outside of FS. Convert the volume to minc with mri_convert and run the MNI nu_correct on it directly cheers Bruce On Thu, 11 Jul 2013, Cristian Paz wrote: Hi Anna and all Freesurfers,  I have sort of the same problem.  I know there is a flag called

Re: [Freesurfer] How to use read_curv?

2013-07-11 Thread fatma zribi
Hi Bruce, I would like to use information about curv and sulc of a population and plot the variance with plot_mesh (variance presented in one brain) With best regards, Fatma 2013/7/11 Bruce Fischl fis...@nmr.mgh.harvard.edu Hi Fatma I don't understand your question. read_curv returns a

Re: [Freesurfer] How to use read_curv?

2013-07-11 Thread Bruce Fischl
sorry, I still don't understand what the issue is. read_surf will give you the surface geometry/topology, and read_curv will give you the scalar fields to display over them. You can use mri_surf2surf to map them into a common space (the fsaverage surface for example) cheers Bruce On Thu, 11

[Freesurfer] Fwd: How to use read_curv?

2013-07-11 Thread fatma zribi
-- Forwarded message -- From: fatma zribi zribi.fa...@gmail.com Date: 2013/7/11 Subject: Re: How to use read_curv? To: Bruce Fischl fis...@nmr.mgh.harvard.edu i have used read_surf to read ?h.white data. Now i would like to use curv and sulc file of FreeSurfer and extract the

Re: [Freesurfer] Xhemi results

2013-07-11 Thread Douglas Greve
I don't know what you mean by overlaying the results on L R. What is your command line? On 7/11/13 3:34 AM, amirhossein manzouri wrote: Thanks Doug, When I overlay the results on L R , I see different patterns on each hemisphere. Is it something that I don't understand correctly? BR

[Freesurfer] bugs with expert-options and clean flags

2013-07-11 Thread Harms, Michael
Hi, There seem to be a couple small bugs in recon-all (FS 5.3) regarding the interface of trying to do a clean run on top of processing that used an expert-options file: 1) The -xopts-clean flag doesn't work. It sets XOptsClean = 1, but doesn't set XOptsUse = 0. Consequently, because the

Re: [Freesurfer] Xhemi results

2013-07-11 Thread amirhossein manzouri
As I mentioned before in my second question : tksurfer fsaverage_sym rh inflated -aparc -overlay lh.lh-rh.thickness.sm00.mgh tksurfer fsaverage_sym lh inflated -aparc -overlay lh.lh-rh.thickness.sm00.mgh For Right and Left side! BR On Thu, Jul 11, 2013 at 4:38 PM, Douglas Greve

[Freesurfer] mris_curvature_stats

2013-07-11 Thread Harms, Michael
Hi again, Not sure if this is intentional or not, but I noticed that 'mris_curvature_stats' (FS 5.3) appends to Xh.curv.stats on successive invocation, rather than overwriting the existing file. I noticed this in the context of comparing the stats results from a -clean run vs. a fresh run

[Freesurfer] Non-grey matter classified as grey matter

2013-07-11 Thread ye tian
Dear Freesurfers, Do you think I should delete the extra dura-like structure in the attached case? Thank you very much! Sincerely, Ye attachment: Elaine50535.png___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu

Re: [Freesurfer] Non-grey matter classified as grey matter

2013-07-11 Thread Douglas N Greve
yes On 07/11/2013 11:22 AM, ye tian wrote: Dear Freesurfers, Do you think I should delete the extra dura-like structure in the attached case? Thank you very much! Sincerely, Ye ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu

Re: [Freesurfer] Non-grey matter classified as grey matter

2013-07-11 Thread Bruce Fischl
the fix is to acquire a FLAIR or T2 image. What you are seing is the tentorium of the cerebellum which is very difficult to distinguish from cortical gray matter on a T1-weighted image. If you don't have either of those datasets you probably will need to do manual editing Bruce On Thu, 11 Jul

[Freesurfer] Freesurfer surface circle of pre-defined size

2013-07-11 Thread sarahp
I'd like to make a circle of a pre-defined size on the freesurfer surface, with RAS coordinates as the center of the circle. What would be the best way to do this? ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu

Re: [Freesurfer] Non-grey matter classified as grey matter

2013-07-11 Thread ye tian
Dear Bruce and Doug, Thank you very much! PS: I searched through my data folder and didn't find T2 images. There goes all my afternoon! Ye On Thu, Jul 11, 2013 at 1:29 PM, Bruce Fischl fis...@nmr.mgh.harvard.eduwrote: the fix is to acquire a FLAIR or T2 image. What you are seing is the

[Freesurfer] Multi Modality Data Orientation

2013-07-11 Thread Barron, Daniel S
Dear Freesurfers, I am trying to perform probabilistic tractography (FSL Probtrackx) between seed and target VOIs made with Freesurfer's recon-all (T1) and dt_recon (DW) pipelines. I have the original T1 DICOMs, however, I only have the DW NIFTI image volumes. I do not know how the DW

[Freesurfer] Editing multiple sources of error in freesurfer

2013-07-11 Thread ye tian
Dear freesurfers, I have a subject for which I need to delete some dura in brainmask.mgz and to add some control points. I wonder whether I can do it the following way (to save time): 1. Manually delete extra dura in brainmask.mgz 2. recon-all autoreon1 3. Add control points 4. recon-all

[Freesurfer] Pearsons r / adj. r squared

2013-07-11 Thread Martijn Steenwijk
Dear all, Is there a way in freesurfer to compute surface wise pearsons r (for simple correlations) or adjusted r square / the vertex-wise explained variance for a GLM? Best, Martijn ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu

Re: [Freesurfer] Pial surface missing parts of the brain

2013-07-11 Thread Louis Nicholas Vinke
Hi Ye, A couple control points should do the trick. -Louis On Thu, 11 Jul 2013, ye tian wrote: Dear Freesurfers, Is it true that a small piece of the brain is missing in the attached (all three views)? How do I correct this problem? Thank you very much! Sincerely, Ye

Re: [Freesurfer] Editing multiple sources of error in freesurfer

2013-07-11 Thread Louis Nicholas Vinke
Hi Ye, Is the dura in question affecting the surfaces? If so you can delete the dura, add control points and then run command 4 below. You don't need to rerun autorecon1. -Louis On Thu, 11 Jul 2013, ye tian wrote: Dear freesurfers, I have a subject for which I need to delete some dura in

Re: [Freesurfer] Pial surface missing parts of the brain

2013-07-11 Thread ye tian
Dear Louis, Thank you very much! Sincerely, Ye On Thu, Jul 11, 2013 at 4:09 PM, Louis Nicholas Vinke vi...@nmr.mgh.harvard.edu wrote: Hi Ye, A couple control points should do the trick. -Louis On Thu, 11 Jul 2013, ye tian wrote: Dear Freesurfers, Is it true that a small piece of

Re: [Freesurfer] Pearsons r / adj. r squared

2013-07-11 Thread Douglas N Greve
I've attached a matlab script which should do it. doug On 07/11/2013 04:28 PM, Martijn Steenwijk wrote: Dear all, Is there a way in freesurfer to compute surface wise pearsons r (for simple correlations) or adjusted r square / the vertex-wise explained variance for a GLM? Best, Martijn

Re: [Freesurfer] Multi Modality Data Orientation

2013-07-11 Thread Douglas N Greve
you can run bbregister using the b=0 image as input. The final cost function value should beless than .9, if it is more than that then it probably means you have an LR flip. doug On 07/11/2013 03:52 PM, Barron, Daniel S wrote: Dear Freesurfers, I am trying to perform probabilistic

Re: [Freesurfer] How to fix grey matter boundary

2013-07-11 Thread Bruce Fischl
p.s. if you upload the subject I'll take a look On Thu, 11 Jul 2013, Giusy Chinnici wrote: Dear developers, I'm working with patients affected by cortical focal dysplasia; images of these patients often show thickening in some areas of the cortex.  In many cases the reconstruction of the pial

Re: [Freesurfer] How to fix grey matter boundary

2013-07-11 Thread Bruce Fischl
Hi Giusy that's a tough one. Is there white matter in those gyri? It's hard to tell from the 3 single-slice views. We have processed a bunch of FCD-patient data without this type of issue Bruce On Thu, 11 Jul 2013, Giusy Chinnici wrote: Dear developers, I'm working with patients affected

Re: [Freesurfer] Multi Modality Data Orientation

2013-07-11 Thread Barron, Daniel S
Hi Doug, thanks for the tip. I'm making a script to go in and grab the final cost from each subject's registration and display it in a table. Just to make sure, have I highlighted the correct Cost function below? This is from the log file produced by bbregister --surf-cost Thanks again, Daniel

Re: [Freesurfer] Multi Modality Data Orientation

2013-07-11 Thread Barron, Daniel S
Hi Doug, sorry to email again. I just tested the bbregister --surf-cost method by registering a subject's 001.mgz (T1) with it's lowb.nii and lowbflipped.nii (intentionally L-R flipped). They both gave me the same final cost function, the 0.2305 highlighted below. I verified that the

Re: [Freesurfer] Multi Modality Data Orientation

2013-07-11 Thread Douglas Greve
That is the right mincost (you can also find it in the .mincost file), and that cost is very good. Maybe too good. Make sure to look at the registration. I don't know why things are not changing when you left right reverse. Try doing the flip with mri_convert mri_convert lowb.nii