[Freesurfer] How to create a circle ROI centered at certain coordinate?

2012-04-17 Thread zhang mingxia
Dear Freesurfer experts, Recently, I was creating ROI. But I just knew how to create it manually as this website introduce: http://surfer.nmr.mgh.harvard.edu/fswiki/tksurfer_labeledit. Does Freesurfer provide the way to create ROI by using of certain coordinate? That is, if I know the MNI or

Re: [Freesurfer] How to switch order of Talairach and nu-correction stages in recon-all

2012-04-17 Thread Ed Gronenschild
Hi Nick, The option -talairach-nu is not recognized in version v5.1.0. How can I proceed now? Ed On 16 Apr 2012, at 17:32, Nick Schmansky wrote: Ed, Hi, no there is not an option to switch them. The nu correct stage in 5.1 needs the talairach to run. However, if your intent is to get a

Re: [Freesurfer] Segmentation

2012-04-17 Thread Jordan Pierce
Is there a way to only get the stats from the -aseg file that we edited without rebuilding everything?  For example, I edited a subject yesterday and ran the -make all option, but the reconstruction changed everything in -aseg so cerebellum is marked as grey and white matter (see attached).  Do

[Freesurfer] FWHM smoothing for surface based

2012-04-17 Thread Charlotte Bernard
Dear Freesurfer users, I would like to know what is the level of smooth recommanded to use for surface-based group analysis? Thank you, All the best, Charlotte ___ Freesurfer mailing list

Re: [Freesurfer] Segmentation

2012-04-17 Thread Bruce Fischl
Hi Jordan That's pretty bad and means something's went radically wrong pretty early in the process. Have you checked the talairach.lta? Cheers Bruce On Apr 17, 2012, at 8:31 AM, Jordan Pierce jepierc...@yahoo.com wrote: Is there a way to only get the stats from the -aseg file that we

Re: [Freesurfer] How to switch order of Talairach and nu-correction stages in recon-all

2012-04-17 Thread Ed Gronenschild
Hi Nick, It does not work properly, it only produces an error message, even with no option at all: 'nknown option: '- Usage: tcsh [ -bcdefilmnqstvVxX ] [ argument ...]. Ed On 17 Apr 2012, at 16:28, Nick Schmansky wrote: a modified recon-all is attached. it will run nu_correct prior to the

Re: [Freesurfer] reg-feat2anat --feat --manxfm func2std

2012-04-17 Thread Douglas N Greve
It will replace it. doug On 04/14/2012 09:52 AM, Michelle Umali wrote: Hi Freesurfers, I ran reg-feat2anat and am now checking registration. For some subjects I had to edit the registration of feat to standard space. So, do I have to replace the example_func2standard.mat fsl's

Re: [Freesurfer] subtracting segmented volumes

2012-04-17 Thread Douglas N Greve
Have you tried using mri_label2vol with the aparc as the input instead of the aseg? doug On 04/14/2012 12:06 PM, Bruce Fischl wrote: mris_calc should do what you want (although the aseg is not zero in the cortex, so you will change the cortical labels) cheers Bruce On Sat, 14 Apr 2012,

Re: [Freesurfer] Please help: Registering to FSL feat- example_func2standard

2012-04-17 Thread Douglas N Greve
Just run cp $FeatDir/reg/freesurfer/example_func2standard.mat $FeatDir/reg/example_func2standard.mat doug On 04/14/2012 10:04 PM, Michelle Umali wrote: Hi Freesurfers, I ran reg-feat2anat to register freesurfer data to FSL feat in order to generate some binary masks. Afterwards I

Re: [Freesurfer] FWHM smoothing for surface based

2012-04-17 Thread Douglas N Greve
There's not one level of smoothing that will fit all situations. I usually use 5mm-15mm. doug On 04/17/2012 09:17 AM, Charlotte Bernard wrote: Dear Freesurfer users, I would like to know what is the level of smooth recommanded to use for surface-based group analysis? Thank you, All the

Re: [Freesurfer] Mapping of fsaverage surface to native volume

2012-04-17 Thread Douglas N Greve
Can you run the following? mri_surf2vol --mkmask --hemi rh --fillribbon --identity sub01 --template subj01/mri/orig.mgz --o surf-mask.nii tkmedit sub01 orig.mgz -overlay surf-mask.nii -fthresh .5 this should just create a mask of the rh surface in the volume. If this fails, then there's

Re: [Freesurfer] WM modification

2012-04-17 Thread Douglas N Greve
It should not have changed the WM volume. Did you happen to see the thread about a bug in mri_segstats? It could be causing this. You can get a new version here: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/mri_segstats.linux The only thing that we have that comes close to

Re: [Freesurfer] How can I get the mean thickness of the significant cluster

2012-04-17 Thread Douglas N Greve
There should be an ocn.dat file that corresponds to the CSD base name that you passed to mri_glmfit-sim. The cache just uses a pre-computed table. The computations are pretty simple. It synthesizes white gaussian noise on the surface, smooths it by a certain amount, then finds clusters at

Re: [Freesurfer] Segmentation

2012-04-17 Thread Jordan Pierce
What should I be looking for in the talairach.lta?   Jordan Pierce Graduate Student Behavioral and Brain Sciences Program Psychology Department The University of Georgia From: Bruce Fischl fis...@nmr.mgh.harvard.edu To: Jordan Pierce jepierc...@yahoo.com Cc:

Re: [Freesurfer] Segmentation

2012-04-17 Thread Douglas N Greve
You can check it with: cd $SUBJECTS_DIR/$subject/mri tkregister2 --mov $FREESURFER_HOME/average/RB_all_2008-03-26.gca --targ brainmask.mgz --lta-inv transforms/talairach.lta --reg junk.reg.dat --s $subject don't try to edit it though. If it is off, get back to us. doug On 04/17/2012 12:08

Re: [Freesurfer] How to create a circle ROI centered at certain coordinate?

2012-04-17 Thread Douglas N Greve
no, you'll have to do it in some other tool (matlab, eg) On 04/17/2012 02:50 AM, zhang mingxia wrote: Dear Freesurfer experts, Recently, I was creating ROI. But I just knew how to create it manually as this website introduce: http://surfer.nmr.mgh.harvard.edu/fswiki/tksurfer_labeledit.

Re: [Freesurfer] trakula segmentation fault

2012-04-17 Thread Viviana Siless
Hi Anastasia, My mistake with the expiration date. Please try with this link: https://transfert.inria.fr/fichiers/0b1013b5de0fc0cc9e8dd2d6101a054b/testData.tar.gz Thanks! Viviana Siless -- Parietal Team, INRIA Saclay Neurospin, Centre CEA de Saclay 91191 Gif sur Yvette – FRANCE On Tue, Apr 17,

Re: [Freesurfer] trac-all -prep error

2012-04-17 Thread Anastasia Yendiki
Hi Sarina - You'll have to specify the list of gradient directions (bvecfile) and b-values (bvalfile), see here for more info: http://surfer.nmr.mgh.harvard.edu/fswiki/dmrirc Please send email to the freesurfer list and not to me directly. Emails sent to the freesurfer list are saved

Re: [Freesurfer] Help data check: problem with neck and skull stripping

2012-04-17 Thread Sita Kakunoori
Hi Charlotte, If the skull/neck that's left off is not affecting the surfaces, it should be okay. Skull strip looks okay too but it's hard to tell from one slice. Sita. On Tue, 17 Apr 2012, Charlotte Bernard wrote: From: chak...@live.fr To: freesurfer@nmr.mgh.harvard.edu Subject: Date:

[Freesurfer] request for dicom sequences on phantoms

2012-04-17 Thread Satrajit Ghosh
howdy brain imagers, we are trying to put together a vocabulary of DICOM terms and their definitions related to brain imaging. unfortunately, a lot of the useful info is often in private tags and these differ from sequence to sequence and from scanner to scanner. to help us get at these tags,

[Freesurfer] mri_robust_template

2012-04-17 Thread Arman Eshaghi
Hi, I have bias-corrected and co-registered longitudinal images, and I'm interested to use Freesurfer to construct unbiased within-subject templates (to be used in SPM). Using mri_roubust_template, I get the following error message on some (not all) of the subjects. I was wondering whether I

[Freesurfer] Subcortical Segmentation Failures with Freesurfer v. 5.10

2012-04-17 Thread Joshua Lee
Hi All, I thought I'd share my recent experiences with the newest Freesurfer v. 5.10 and subcortical segmentation. I ran a large sample of brains using the default stream of Freesurfer v. 5.10. The resulting hippocampal segmentations were extremely poor, yet on the same sample of brains

Re: [Freesurfer] Subcortical Segmentation Failures with Freesurfer v. 5.10

2012-04-17 Thread Alan Francis
Hi Joshua: What version of FS 4 did you use? best, Alan On Tue, Apr 17, 2012 at 2:56 PM, Joshua Lee jki...@ucdavis.edu wrote: Hi All, I thought I'd share my recent experiences with the newest Freesurfer v. 5.10 and subcortical segmentation. I ran a large sample of brains using the

Re: [Freesurfer] Subcortical Segmentation Failures with Freesurfer v. 5.10

2012-04-17 Thread Joshua Lee
It was version 4.50. I had to walk over to the other room to find out. ;) In any case, I achieved good results by including the use-mritotal flag on the current version. Josh On Tue, Apr 17, 2012 at 12:00 PM, Alan Francis alandarkene...@gmail.comwrote: Hi Joshua: What version of FS 4 did

Re: [Freesurfer] How to switch order of Talairach and nu-correction stages in recon-all

2012-04-17 Thread Joshua Lee
I was told to use this recon-all flag and my talairach problem went away: -use-mritotal - Josh On Tue, Apr 17, 2012 at 7:51 AM, Nick Schmansky ni...@nmr.mgh.harvard.eduwrote: Ed, email probably trounced it. recon-all is a text file. attached is a gzipped version. use gunzip to unpack it.

Re: [Freesurfer] How to switch order of Talairach and nu-correction stages in recon-all

2012-04-17 Thread Joshua Lee
wait it was Nick that told me to use this a while back when I had tal-check failures...I just posted about my current issues where I discuss my recent experiences with a high rate of talairach failures in the current version. - Josh On Tue, Apr 17, 2012 at 12:49 PM, Joshua Lee jki...@ucdavis.edu

Re: [Freesurfer] trakula segmentation fault

2012-04-17 Thread Anastasia Yendiki
Hi Viviana - I suspect it may be b/c you're using the 2mm-resolution MNI template brain, and our atlas was built using the 1mm one. From your dmrirc file: # MNI template (the only option for inter-subject registration in this version) # Default: