Re: [Freesurfer] gray matter not incuded in pial surface

2011-08-01 Thread Allison Stevens
There is some white matter there being excluded as well. If you include that, the pial surface will likely grow out and include that gm. On Aug 1, 2011, at 7:37 AM, _andre...@sapo.pt wrote: > Dear FS experts, > > I'm correcting the pial surface when it includes more than it is supposed, > but

Re: [Freesurfer] gray matter not incuded in pial surface

2011-08-01 Thread Bruce Fischl
Hi Andreia it's tough to tell from one slice. There appear to be some bright stuff in the superficial gray matter, which may be messing stuff up, not sure what it is, or it could be something happening through-plane that we can't see. If you want to upload the dataset I'll take a look cheers B

[Freesurfer] mri_glmfit with pvr: how to include pvr in the fsgd file?

2011-08-01 Thread Burzynska, Aga
Dear all, I am trying to make group level analysis of functional data on the surface and add per-vertex regressors (PVR, here: cortical thickness) into the design. When I view the results I have the feeling that the PVR is not really included in the model: I am using the command: mri_glmfit --

[Freesurfer] Large White Matter Areas Ignored In Surface Detection

2011-08-01 Thread Christopher Luna
Hello Freesurfers, I'm putting *.IMG files into the program and after correcting talaraich transformations for them, I notice that when the reconstructions have completed, that there are entire lobes of white matter absent from the surfaces detected and from the wm.mgz file. I went through my hand

Re: [Freesurfer] mris_flatten problem

2011-08-01 Thread Bruce Fischl
Hi Hiroyuki can you send us the mris_flatten command and all it's output? cheers Bruce On Mon, 1 Aug 2011, Oya, Hiroyuki (UI Health Care) wrote: Dear all,   A patch created by mris_flatten looked odd (see attached image) . Any suggestion for this problem? Original patch (before flatteni

Re: [Freesurfer] Need help to run MRI data using Freesurfer in Mac OSx

2011-08-01 Thread Bruce Fischl
thanks. Nick: any idea? On Mon, 1 Aug 2011, joanna floria wrote: Hi Bruce, Yes, please find two log files attached.  I renamed one with label 2.  These were for two different datasets and I think the error was the same. Thanks Joanna On Fri, Jul 29, 2011 at 3:34 PM, Bruce Fischl wrote:

Re: [Freesurfer] Large White Matter Areas Ignored In Surface Detection

2011-08-01 Thread Bruce Fischl
Hi Christopher, are you sure that the orientations are correct? That is, when you bring the orig.mgz up in tkmedit does the coronal view actually show the brain coronally? Img is a dangerous format to use as it doesn't contain orientation info. Do you have access to the data in some other forma

Re: [Freesurfer] Large White Matter Areas Ignored In Surface Detection

2011-08-01 Thread Christopher Luna
Hi Bruce, The orientations are correct - they weren't at first so I had to do a lot of work in tkregister2 to get the orientations correct. Unfortunately I only have access to the *.IMG and sometimes the *.HDR file for each subject. Christopher Luna MIT Brain and Cognitive Sciences, Class of 2012

Re: [Freesurfer] Large White Matter Areas Ignored In Surface Detection

2011-08-01 Thread Bruce Fischl
how do you know left/right is correct? In any case, if you upload the subject we'll take a look. Things very rarely fail that badly On Mon, 1 Aug 2011, Christopher Luna wrote: > Hi Bruce, > The orientations are correct - they weren't at first so I had to do a lot of > work in tkregister2 to ge

[Freesurfer] bbregister

2011-08-01 Thread Michelle Umali
Hi Bruce, So for the following command: bbregister --s bert --mov func.nii --init-fsl --reg register.dat tkregister2 --mov func.nii --reg register.dat --surf In the case of a retinotopy analysis, which files are register.dat and func.nii? Quoting Bruce Fischl : [Hide Quoted Text]

Re: [Freesurfer] bbregister

2011-08-01 Thread Bruce Fischl
Hi Michelle func.nii is the functional data you want to register, and the register.dat is the output of bbregister. cheers Bruce On Mon, 1 Aug 2011, Michelle Umali wrote: > Hi Bruce, > So for the following command: > bbregister --s bert --mov func.nii --init-fsl --reg register.dat >

Re: [Freesurfer] Large White Matter Areas Ignored In Surface Detection

2011-08-01 Thread Christopher Luna
Ah, I forgot about the left/right orientation. Where should I upload these files? Thanks, Christopher Luna MIT Brain and Cognitive Sciences, Class of 2012 Desimone Lab, McGovern Institute for Brain Research MIT Archery Club Alpha Kappa Psi Colony at MIT On Mon, Aug 1, 2011 at 12:23 PM, Bruce Fi

Re: [Freesurfer] Large White Matter Areas Ignored In Surface Detection

2011-08-01 Thread Bruce Fischl
https://surfer.nmr.mgh.harvard.edu/fswiki/FtpFileExchange?highlight=%28ftp%29 On Mon, 1 Aug 2011, Christopher Luna wrote: Ah, I forgot about the left/right orientation. Where should I upload these files? Thanks, Christopher Luna MIT Brain and Cognitive Sciences, Class of 2012Desimone Lab, McGo

Re: [Freesurfer] trac-all -path errors

2011-08-01 Thread Moiyadi, Ammar
Hi, I am also getting the error where the txt files cannot be opened because they were not created beforehand. Where does the trac-all -prior step take place? Does it appear within the trac-all -prep script? Thank you, Ammar Moiyadi, BS Professional Research Assistant Department of Psychiatry U

Re: [Freesurfer] trac-all -path errors

2011-08-01 Thread Anastasia Yendiki
Hi Ammar - Yes, -prior is the last step included in -prep. Are the text files missing for all tracts, or specifically for lh.cst? Thanks, a.y On Mon, 1 Aug 2011, Moiyadi, Ammar wrote: > Hi, > I am also getting the error where the txt files cannot be opened because they > were not created befo

Re: [Freesurfer] trac-all -path errors

2011-08-01 Thread Priti Srinivasan
Hi Ping, This is an issue with the mac build, that we are currently working on fixing. Anastasia, (cc'd) is working on a patch that you can download to resolve this issue. As far as the nb0 value is concerned you're correct, it assumes that the first 7 volumes are b0, but it uses that to compute

Re: [Freesurfer] parts of brain not included in segmentation

2011-08-01 Thread Bruce Fischl
Hi Branka those are really big bias fields in your data that are causing the problems. Can you tell us about the acquisitions? What field strength? Scanner? Coil? Sequence? thanks Bruce On Mon, 1 Aug 2011, Branka Milivojevic wrote: > Hi, > > I'm a relatively new user of freesurfer, so I don

Re: [Freesurfer] Large White Matter Areas Ignored In Surface Detection

2011-08-01 Thread Christopher Luna
I've uploaded the IMG and HDR files, they are named after my email address. Thank you kindly, Christopher Luna MIT Brain and Cognitive Sciences, Class of 2012 Desimone Lab, McGovern Institute for Brain Research MIT Archery Club Alpha Kappa Psi Colony at MIT On Mon, Aug 1, 2011 at 12:40 PM, Bruc

Re: [Freesurfer] Large White Matter Areas Ignored In Surface Detection

2011-08-01 Thread Bruce Fischl
Hi Chris, they are front/back reversed (a/p), which is why everything fails. I don't know how you are ever going to know left from right though. You should talk to whoever got you this data and see if they have some way to tell. cheers Bruce On Mon, 1 Aug 2011, Christopher Luna wrote: I

Re: [Freesurfer] Large White Matter Areas Ignored In Surface Detection

2011-08-01 Thread Christopher Luna
Hi Bruce, Thank you very much! We'll get in contact with them. Best, Christopher Luna MIT Brain and Cognitive Sciences, Class of 2012 Desimone Lab, McGovern Institute for Brain Research MIT Archery Club Alpha Kappa Psi Colony at MIT On Mon, Aug 1, 2011 at 2:52 PM, Bruce Fischl wrote: > Hi Chr

[Freesurfer] Problem loading nii

2011-08-01 Thread Tax, C.M.W.
Dear Sir/Madam, I would like to use freesurfer for cortical flattening, working with the nii format. When I try to load the nii.gz file as described on http://www.fmrib.ox.ac.uk/fsl/freesurfer/index.html, I get the following error: student@BMT-PC125:~$ tkmedit -f t1.nii.gz niiRead(): error open

Re: [Freesurfer] Problem loading nii

2011-08-01 Thread Bruce Fischl
hmmm, that should have worked. Do you want to email us the t1.nii.gz volume and we'll take a look? On Mon, 1 Aug 2011, Tax, C.M.W. wrote: > Dear Sir/Madam, > > I would like to use freesurfer for cortical flattening, working with the nii > format. When I try to load the nii.gz file as described

[Freesurfer] Fwd: Problem loading nii

2011-08-01 Thread John Jan Drozd
But of course, Bruce says the .nii.gz format should have worked, so it does not need to be type mgz format. I would trust Bruce. Sorry for not cc'ing the mailing list earlier. Thanks, John John Drozd Post-Doctoral Fellow Robarts Research Institute University of Western Ontario London, Ontario,

[Freesurfer] xopts script...

2011-08-01 Thread Gonzalo Rojas Costa
Hi: In the web page "FSTutorial/TroubleshootingData - Free Surfer Wiki" appears "Try using an xopts script first to change the intensity thresholds being used"... What is a xopts script ?... How can I use a xopts script to change the intensity thresholds ?... Sincerely, Gonzalo Rojas Co

[Freesurfer] "Holes" in the mri_label2vol results

2011-08-01 Thread Shanqing Cai
Hi, I am using mri_label2vol to generate some volume ROIs from surface labels. I noticed that the results contain "holes", by which I mean voxels that aren't label and are surrounded by labeled voxels. This seems to happen regardless of the step size I specify after the "--proj" option of mri_labe

[Freesurfer] recon-all steps necessary to get aseg.nii

2011-08-01 Thread Jeff Eriksen
I would like to run FreeSurfer just up to the point it creates the aseg file, and no further. I believe this would be steps 1 through 11. Is there any way other than making a copy of the recon-all script and removing everything after step 11. Not sure I know exactly where this is. -Jeff ___