[Freesurfer] Smoothing of functional data mapped onto the fsaverage surface

2015-09-08 Thread Silas
Dear Freesurfer, 1) I would like to investigate the possible outcomes of my functional group analysis after smoothing with 5 FWHM and 10 FWHM. My functional data is already mapped onto the fsaverage. Which command would you suggest for smoothing this data? 2) In the functional group analysis tut

Re: [Freesurfer] surface area of outer smoothed hull

2015-09-08 Thread Bruce Fischl
if it's saved as a surface you can get it from mris_anatomical_stats. If you want only a region within the surface, create a label and use the -l option cheers Bruce On Tue, 8 Sep 2015, Jockwitz, Christiane wrote: Dear all,   I would like to extract the surface area from the outer smoothed

Re: [Freesurfer] Basic questions regarding of layers

2015-09-08 Thread Bruce Fischl
Hi Yun 1. No, the surfaces are not binary. They exist in in a continuum, so aren't limited by the resolution of the underlying volumes. You should be able to visualize them over the volumes using freeview -v -f 2. mri_compute_layer_fractions computes the volume fractions of each compartme

Re: [Freesurfer] Basic questions regarding of layers

2015-09-08 Thread Yun Wang
Thanks for your answer! Truly help me a lot! > On Sep 8, 2015, at 07:17, Bruce Fischl wrote: > > Hi Yun > > 1. No, the surfaces are not binary. They exist in in a continuum, so aren't > limited by the resolution of the underlying volumes. You should be able to > visualize them over the volu

Re: [Freesurfer] Freesurfer removing hippocampus and temporal lobe

2015-09-08 Thread Leonardo Tozzi
Dear Michael, Thank you very much for your fast reply. Sorry for bothering you, I had not seen the FAQ entry. Sorry and thank you again, Leonardo Tozzi Research Fellow Discipline of Psychiatry Trinity College Institute of Neuroscience College Green Dublin 2 Ireland Office: +35318964234 Mobile

Re: [Freesurfer] cluster info

2015-09-08 Thread Barbour, Tracy,M.D.
Thanks Doug, Is there a way to do this for surface clusters as well? Tracy From: freesurfer-boun...@nmr.mgh.harvard.edu [freesurfer-boun...@nmr.mgh.harvard.edu] on behalf of Douglas Greve [gr...@nmr.mgh.harvard.edu] Sent: Wednesday, September 02, 2015 4:02 PM T

Re: [Freesurfer] Fwd: Problem running Tracula

2015-09-08 Thread Anastasia Yendiki
I need to see the log file. Based on the output files that you sent me, it ran further along this time, so you must be running into a different error now. I can't guess what the problem is without seeing the log. On Mon, 7 Sep 2015, andrea cristina Lima wrote: -- Forwarded message

[Freesurfer] create ROI from label

2015-09-08 Thread Hirsch, Gabriella
Hi all, I'm trying to generate an ROI mask from the Freesurfer label lh.MT.label of a specific subject. I've browsed the documentation and the archives and it seems the best command to use is mri_label2vol. However, I can only seem to produce the "outline" of the label, if that makes sense (as

[Freesurfer] mri_robust_register for 2D images

2015-09-08 Thread Léorah Freeman
Hi, We are using mri_robust_register in one of our pipelines to register two 2D T2 images from the same patient (2 different timepoints). We resample both volumes into halfway space to then perform image subtraction. Both T2 volumes are 2D images, each with 44 slices. However when volumes are resa

Re: [Freesurfer] bbregister with label

2015-09-08 Thread Douglas N Greve
It is masked in, ie, it only uses the vertices that are in the label. On 09/03/2015 04:26 PM, Sebastien Proulx wrote: > > Quick question : > > When using --label with bbregister, does the specified label file mask > in or out (is the the voxels that are out or in of the label file that > are exc

Re: [Freesurfer] slice timing correction fmcstc files are lacking

2015-09-08 Thread Douglas N Greve
they are the files named like "fmcpr.odd.nii.gz" On 09/04/2015 08:17 AM, std...@virgilio.it wrote: > Hi using Philips scanner (interleaved) > Therefore, I'm running > > preproc-sess -sf sessid -fwhm 5 -surface fsaverage lhrh -mni305-1mm > -fsd rest -per-run -sliceorder odd > > However, as you c

Re: [Freesurfer] Freesurfer ROI

2015-09-08 Thread Douglas N Greve
Run recon-all on the mni152 T1 template that comes with SPM, project your VBM results to the surface of that (mri_vol2surf), binarize it if not already (mri_binarize), create a surface label (mri_cor2label with --surf option and --id 1), then use mri_label2label to map it to each subject, then

Re: [Freesurfer] ERROR: loading aseg $SUBJ/mri/MRS_MASK.nii.gz.mgz

2015-09-08 Thread Douglas N Greve
It is expecting it in mgz format, so just mri_convert MRS_MASK.nii.gz MRS_MASK.mgz On 09/04/2015 01:08 PM, std...@virgilio.it wrote: > Hi list, > I'm performing FS-FAST using as seed MRS voxel (MRS_MASK). > MRS_MASK shows a god overlap with orig and both of these are located > in $SUBJ/mri. > F

Re: [Freesurfer] Cortical parcellation and mri_annotation2label

2015-09-08 Thread Douglas N Greve
what is different? On 09/07/2015 07:02 PM, Jacek Manko wrote: > Dear All, > > In your entry on corical parcellation: > > https://surfer.nmr.mgh.harvard.edu/fswiki/CorticalParcellation > > You enumerate a certain list of cortical labels obtained in that procedure. > If I run aparcstats2table I got

Re: [Freesurfer] Smoothing of functional data mapped onto the fsaverage surface

2015-09-08 Thread Douglas N Greve
What are you using to do the functional analysis? In general, use mri_surf2surf to do the smoothing (or mris_fwhm). cesvar.nii.gz is something produced by FAFAST. If you are not using FSFAST then you'll have to find the equivialent (it is the variance of the contrast, VARCOPE in FSL I think) O

Re: [Freesurfer] mri_robust_register for 2D images

2015-09-08 Thread Martin Reuter
Hi Leorah, in order to do a 3D registration you really need 3D information, so intrinsically the registration works in isotropic spaces. That is why the midspace has isotropic voxels. Maybe try writing out the two transforms to midspace and then use mri_convert with the -rl flag (passing one

Re: [Freesurfer] create ROI from label

2015-09-08 Thread Douglas N Greve
Try it with --fill-ribbon On 09/08/2015 11:01 AM, Hirsch, Gabriella wrote: > Hi all, > > I'm trying to generate an ROI mask from the Freesurfer label > lh.MT.label of a specific subject. I've browsed the documentation and > the archives and it seems the best command to use is mri_label2vol. > H

[Freesurfer] Creating label from Tal coordinates

2015-09-08 Thread Rodriguez-Thompson, Anais
Hi Freesurfer experts, I am trying to create a label from Talairach coordinates. I loaded the fsaverage brain in tkmedit (tkmedit fsaverage orig.mgz) and entered the coordinates 0 -16 -6 (our coordinates of interest). From here I saved the label using "save label as". However, when I try to loa

[Freesurfer] PET tools in FS dev v6.0

2015-09-08 Thread Jonathan DuBois
Hi FS experts, In FS development package I see that there have been tools added for partial volume correction of PET data, but I was wondering if there were also kinetic modeling tools similar to those described in Doug's 2014 paper? If you could let me know what PET processing tools have been inc

Re: [Freesurfer] create ROI from label

2015-09-08 Thread Hirsch, Gabriella
Thanks Doug - I tried adding it but got an error: ERROR: Option --fill-ribbon unknown Does the order matter/should some other flag be removed? Thanks, Gabriella From: freesurfer-boun...@nmr.mgh.harvard.edu [freesurfer-boun...@nmr.mgh.harvard.edu] on b

Re: [Freesurfer] PET tools in FS dev v6.0

2015-09-08 Thread Douglas N Greve
Yes there are both. For KM we have MRTM1 and MRTM2 so far. They are not well documented yet. 1. To start, run gtmseg --s subject This will take a couple of hours and produces some files needed for GTM PVC (which is used for GTM, MG, RBV). 2. You'd then register the PET to the anatomical with

Re: [Freesurfer] create ROI from label

2015-09-08 Thread Douglas N Greve
try this version ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/mri_label2vol On 09/08/2015 02:30 PM, Hirsch, Gabriella wrote: > Thanks Doug - I tried adding it but got an error: > > ERROR: Option --fill-ribbon unknown > > Does the order matter/should some other flag be removed? >

Re: [Freesurfer] cluster info

2015-09-08 Thread Douglas N Greve
Not as easily. You can use mri_segstats again with the --annot option. Create a new surface overlay by masking ?h.area with your cluster and use this as the input; also add --accumulate. Run it a second time (with diff output) and use the ?h.area as input (instead of the masked area). If you di

Re: [Freesurfer] Creating label from Tal coordinates

2015-09-08 Thread Douglas N Greve
There are no points in the label. I'm not sure that you actually created a label. Did you have tkmedit configured to draw labels? Actually, I think it open that way... Did you see a colored dot where your label was? On 09/08/2015 02:04 PM, Rodriguez-Thompson, Anais wrote: > Hi Freesurfer experts

Re: [Freesurfer] create ROI from label

2015-09-08 Thread Hirsch, Gabriella
Ah, running into a slight snag. I placed the new version in the freesurfer/bin folder but I'm running into permission issues: /usr/local/freesurfer/bin/mri_label2vol: Permission denied. Tried chmod-ing it but still didn't work: chmod +x mri_label2vol chmod: changing permissions of `mri_label2vo

Re: [Freesurfer] create ROI from label

2015-09-08 Thread Douglas N Greve
You probably don't have permissions on your network. Are you local to the Martinos? If so, then use the dev version (but only for this). Alternatively, you can copy it into your path somewhere. You probably don't want to overwrite the version in your distribution. On 09/08/2015 03:05 PM, Hirsch

Re: [Freesurfer] Creating label from Tal coordinates

2015-09-08 Thread Rodriguez-Thompson, Anais
Hi Doug, I didn't see a colored dot. Unlike tksurfer, I didn't see a fill option to create a label from a point. Is there something I should do other than moving the cursor to my point of interest and then "save label as?" Thanks, Anais From: freesurfer-

Re: [Freesurfer] Creating label from Tal coordinates

2015-09-08 Thread Douglas N Greve
use the middle mouse button to create the label, then save it On 09/08/2015 04:27 PM, Rodriguez-Thompson, Anais wrote: > Hi Doug, > > I didn't see a colored dot. Unlike tksurfer, I didn't see a fill option to > create a label from a point. Is there something I should do other than moving > the c

Re: [Freesurfer] mri_glmfit-sim error

2015-09-08 Thread Douglas N Greve
Use "abs" not "" On 09/04/2015 03:20 PM, Xiaomin Yue wrote: > Hi, > > I got this error when run mri_glmfit-sim: missing name for redirect. > I am running freesurfer 5.3. the command is: mri_glmfit --glmdir > ces.nii --cache 2 --sim-sign . The ces.nii was generated from > group level analysis

Re: [Freesurfer] conjunction map

2015-09-08 Thread Douglas N Greve
no, use mri_concat with the --conjunct option On 09/04/2015 12:08 PM, std...@virgilio.it wrote: > Hi list, > > is possible to obtained a conjunction map from vlrmerge command on > FS-FAST (resting state) results? > > > Stefano > > > ___ > Freesurfer mai

Re: [Freesurfer] mri_glmfit-sim error

2015-09-08 Thread Xiaomin Yue
Thanks Xiaomin On Tue, Sep 8, 2015 at 2:03 PM -0700, "Douglas N Greve" wrote: Use "abs" not "" On 09/04/2015 03:20 PM, Xiaomin Yue wrote: > Hi, > > I got this error when run mri_glmfit-sim: missing name for redirect. > I am running freesurfer 5.3. the command is: mri_glmfit --glmdir > ces

[Freesurfer] Functional connectivity with volume label

2015-09-08 Thread Rodriguez-Thompson, Anais
Hi Freesurfer experts, I'm trying to run a functional connectivity analysis using a label that was created in the volume (vta.label). I have a few questions about how I would do this (compared to a label created on surface). Usually, we create a smoothed mask using the commands mri_label2labe