Re: [Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Matt Glasser
I'm sure it was registered to the T1w with BBR, though I don't know the internals of that in recon-all. Given that you might only be the second person to try this with non T2-SPACE T2w images (and I unfortunately had not told Bruce about my bad experience with this), you can forgive the FreeSurfer

Re: [Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Michael Waskom
Hmm, Ok. Thanks Matt. I still think it's weird that the T2 didn't seem to ever get registered to the FS volume, but it's not a huge loss if we can't use them. With that said, it might help to clarify the docs on this point a bit, as it sort of sounded like any reasonably-sized T2-weighted image wo

[Freesurfer] Fwd: Brainhack 2013 Stipend Program (DEADLINE TO APPLY: 11:59PM EST TONIGHT)

2013-09-27 Thread MCLAREN, Donald
Dear Colleagues, The Neurobureau is excited to announce a stipend program for Brainhack 2013. The stipend program was created following a generous grant from Siemens Healthcare to assist young investigators in attending Brainhack 2013. Without their support, the stipend program would not exist. T

[Freesurfer] Brainhack Registration and Payment

2013-09-27 Thread MCLAREN, Donald
Brainhack.org is currently offline due to technical issues. We hope to have the website back up and running shortly. Here are the details to register (if you have not already) and to complete the payment process (if you pre-registered). The cost for the entire workshop and lodging for 4 nights is

Re: [Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Matt Glasser
So the T2-SPACE is a variable flip angle sequence that actually has a fair amount of T1 and MT contrast in it and relatively less T2 contrast. As a result, you can clearly see the difference between grey and white matter, and CSF is not massively brighter than grey and white matter. If you are us

Re: [Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Michael Waskom
Hi Matt, It's this sequence: http://cni.stanford.edu/wiki/MR_Protocols#T2_weighted_scans (the 3D T2) You can click the console screenshots for a closer view of the parameters -- let me know if you need me to track down more info. mw On Fri, Sep 27, 2013 at 11:38 AM, Matt Glasser wrote: > Som

Re: [Freesurfer] Fwd: Question about talairach.m3z file

2013-09-27 Thread Douglas N Greve
It is more or less mni305. I would use mri_vol2vol but I think that mri_convert should give you the same result. doug On 09/27/2013 03:02 PM, Paul Beach wrote: > -- Forwarded message -- > From: *Paul Beach* mailto:pabea...@gmail.com>> > Date: Fri, Sep 27, 2013 at 2:39 PM > Subj

[Freesurfer] Fwd: Question about talairach.m3z file

2013-09-27 Thread Paul Beach
-- Forwarded message -- From: Paul Beach Date: Fri, Sep 27, 2013 at 2:39 PM Subject: Re: [Freesurfer] Question about talairach.m3z file To: Bruce Fischl So would you suggest, then, that it would be better to use the mri_vol2vol command to transform subject data (anatomical and f

Re: [Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Matt Glasser
Someone sent me a different kind of T2w image and it didn't work so well, so we need to know what kind of image this is. Peace, Matt. On 9/27/13 1:33 PM, "Bruce Fischl" wrote: >nope, pretty much only with T2-space with and without a flair pulse >On Fri, >27 Sep 2013, Matt Glasser wrote: > >>

Re: [Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Bruce Fischl
nope, pretty much only with T2-space with and without a flair pulse On Fri, 27 Sep 2013, Matt Glasser wrote: > Also, what kind of T2w sequence is this? I think we've mostly tested it > with the T2-SPACE (unless Bruce has tested with other things). > > Peace, > > Matt. > > On 9/27/13 12:58 PM, "B

Re: [Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Matt Glasser
Also, what kind of T2w sequence is this? I think we've mostly tested it with the T2-SPACE (unless Bruce has tested with other things). Peace, Matt. On 9/27/13 12:58 PM, "Bruce Fischl" wrote: >Hi Michael > >that looks pretty bad! What is the resolution of the T2? The T1 that you >overlay on al

Re: [Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Bruce Fischl
Hi Michael that looks pretty bad! What is the resolution of the T2? The T1 that you overlay on also looks somewhat blurry - what was it? Bruce On Fri, 27 Sep 2013, Michael Waskom wrote: Hi, just to make the problem a bit more transparent, I took a second screenshot of the slices with the

Re: [Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Michael Waskom
Hi, just to make the problem a bit more transparent, I took a second screenshot of the slices with the pial surface from the -T2pial run in red and the pial surface from the normal run in cyan: https://dl.dropbox.com/s/jv8rcxnq50tdac6/bad_slice_both_pial.png On Fri, Sep 27, 2013 at 10:37 AM, Mich

[Freesurfer] Major problems with T2-based pial removal

2013-09-27 Thread Michael Waskom
Hi, I'm using FS 5.3 and trying to use hires T2-weighted scans to refine the pial mesh. However, I've found that using the T2 is causing rather dramatic problems with the pial surface. I processed the same subject's data with and without the -T2pial option. Here are links to a) pial surface imag

[Freesurfer] DODS slope information

2013-09-27 Thread Jacobs H (NP)
Hi Freesurfers, I just looked at my cortical thickness results, in which I performed an interaction between group (2 groups) and cognition (continuous). I see regions popping up, which is great! Especially since they are related to the task. Now, I made a scatterplot of some of these vertices to

Re: [Freesurfer] Error running TRACULA

2013-09-27 Thread Anastasia Yendiki
Hi Lucia - The bvecs file is full of "0,000". I'm guessing the problem is that your environment is set to use the comma instead of the point as the decimal separator. Can you try this and then rerun? setenv LANG en_US.UTF-8 Hope this helps, a.y On Fri, 27 Sep 2013, Lucia Billeci w

[Freesurfer] R: Re: R: Re: R: Re: Import FS data to FSL

2013-09-27 Thread stdp82
Anastasia thank you very much! I have wrote to FSL mail list. They have uploaded a new web page of FDT. Anyway, these are the commands: mris_convert lh.white lh.white.giiecho lh.BA44.label lh.BA45.label > listOfAreas.txt label2surf -s lh.white.gii -o lh.BA44.gii -l listOfAreas.txtStefano ---

Re: [Freesurfer] Error running TRACULA

2013-09-27 Thread Lucia Billeci
Hi Anastasia here are the files Thanks Lucia bvals Description: Binary data bvecs Description: Binary data _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Dr. Lucia Billeci, PhD Institute of Clinical Physiology (IFC) National Research Council (CNR) via Moruzzi 1, 56124, Pisa ITALY Tel: +39-

Re: [Freesurfer] Red Hat 6 and Freesurfer for CentOS4/CentOS6: different results?

2013-09-27 Thread Garikoitz Lerma-Usabiaga
Thanks Zeke, I'll run the subjects again, Gari On Fri, Sep 27, 2013 at 4:48 PM, Z K wrote: > Yes, there will be some minor differences between centos4 and centos6 > build. The differences are due to the different versions of gcc used for > the different distributions. The centos6 build uses a n

Re: [Freesurfer] Error running TRACULA

2013-09-27 Thread Anastasia Yendiki
Hi Lucia - The nb0 thing isn't used any more, it was in the old version of tracula only (the one in freesurfer 5.1). Can you send the version of the bvecs and bvals files that are in the dmri/ directory? Thanks, a.y On Fri, 27 Sep 2013, Lucia Billeci wrote: > Dear Anastasia, > > I added in t

Re: [Freesurfer] Tracula bval and bvec

2013-09-27 Thread Anastasia Yendiki
You may have to give up the arcuate (slft) too, since part of the temporal lobes are chopped off. Although it didn't get to that tract so it's just a guess. Yes, you should be fine by removing from pathlist (and the respective entries in ncpts) any tracts that are partly cut off in your imag

Re: [Freesurfer] Red Hat 6 and Freesurfer for CentOS4/CentOS6: different results?

2013-09-27 Thread Z K
Yes, there will be some minor differences between centos4 and centos6 build. The differences are due to the different versions of gcc used for the different distributions. The centos6 build uses a newer version of gcc which has optimization options not available on the version gcc for the cento

Re: [Freesurfer] R: Re: R: Re: Import FS data to FSL

2013-09-27 Thread Anastasia Yendiki
label2surf is an FSL command, so you can get a more authoritative answer on the FSL list, but I'd try one of the files in the surf/ directory, like lh.white or rh.white. On Fri, 27 Sep 2013, std...@virgilio.it wrote: Hi list and Anastasia. Thank you very much. mri_annotatiion2label works f

Re: [Freesurfer] Tracula bval and bvec

2013-09-27 Thread Garikoitz Lerma-Usabiaga
Many thanks Anastasia. So, do you think it would work if I exclude this tracts from the analysis and ask for the remaining ones? thanks again, Gari On Fri, Sep 27, 2013 at 4:35 PM, Anastasia Yendiki < ayend...@nmr.mgh.harvard.edu> wrote: > > Hi Gari - Just looked at your subject. The bottom of

Re: [Freesurfer] Tracula bval and bvec

2013-09-27 Thread Anastasia Yendiki
Hi Gari - Just looked at your subject. The bottom of the brain is truncated in the DWIs. The slices stop in the middle of the angular bundle, which is why the -prior step failed in that pathway. But I expect there'd be problems with other tracts that reach that inferior, even if they didn't f

Re: [Freesurfer] Error running TRACULA

2013-09-27 Thread Lucia Billeci
Dear Anastasia, I added in the dmrirc file the following line: set nb0 = 1 because I red in the forum that it is necessary to indicate the number of b0 volume and I don't get the error about fslroi anymore. However now I have the following error: Error: bvecs and bvals don't have the same n

Re: [Freesurfer] Conversion question

2013-09-27 Thread Fotiadis, Panagiotis
Great, thanks Bruce! From: freesurfer-boun...@nmr.mgh.harvard.edu [freesurfer-boun...@nmr.mgh.harvard.edu] on behalf of Bruce Fischl [fis...@nmr.mgh.harvard.edu] Sent: Friday, September 27, 2013 9:36 AM To: pfot...@nmr.mgh.harvard.edu Cc: freesurfer@nmr.mg

Re: [Freesurfer] Question about talairach.m3z file

2013-09-27 Thread Bruce Fischl
Hi Paul not really. It is a nonlinear transform to our own atlas, which is loosely in MNI space. Doug can probably give you a more precise answer cheers Bruce On Fri, 27 Sep 2013, Paul Beach wrote: Hello Freesurfer community, I have a question about the file talairach.m3z, which is found i

Re: [Freesurfer] Conversion question

2013-09-27 Thread Bruce Fischl
Hi Panos yes, mri_convert will do this with -odt int cheers Bruce On Fri, 27 Sep 2013, pfot...@nmr.mgh.harvard.edu wrote: > Hi FS Community, > > I was wondering whether there is a way to convert a FLOAT type niftii file > to an INT type niftii file. > Thanks in advance! > > Best, > Panos >

Re: [Freesurfer] mri_volcluster question

2013-09-27 Thread pfotiad
I see, thanks Doug! > It is --sum, not --sumfile > doug > > > On 09/25/2013 12:44 PM, pfot...@nmr.mgh.harvard.edu wrote: >> Hi FS Community, >> >> I am using the mri_volcluster command but for some reason the --sumfile >> shows up as an unknown flag. Is there another way to get a summary text >> f

[Freesurfer] Question about talairach.m3z file

2013-09-27 Thread Paul Beach
Hello Freesurfer community, I have a question about the file talairach.m3z, which is found in the mri/transforms directory of all subjects that have undergone recon-all. I am utilizing this file in an mri_convert script to resample AFNI processed T1volumes (and time-series data) to MNI space. Howe

[Freesurfer] Conversion question

2013-09-27 Thread pfotiad
Hi FS Community, I was wondering whether there is a way to convert a FLOAT type niftii file to an INT type niftii file. Thanks in advance! Best, Panos ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/li

Re: [Freesurfer] Reading surface features into a vector

2013-09-27 Thread Bruce Fischl
Hi Joy-Loi read_curv.m should do the trick. cheers Bruce On Fri, 27 Sep 2013, Joy-Loi Chepkoech wrote: > Dear FreeSurfer experts, > > I am looking for a way to read a subject's cortical thickness and > volume, and surface area at each vertex into a vector that is readable > by matlab. > How s

Re: [Freesurfer] group pcc maps for functional connectivity

2013-09-27 Thread Caspar M. Schwiedrzik
Hi Doug, it would be great if you could give me some further advise on the group analysis of functional connectivity maps. Specifically, I am trying to get PCC maps for certain seeds, and am not planning any comparison between groups. Following your previous advise, I am running isxconcat-sess with

[Freesurfer] Extracting SUV values from Freesurfer ROIs

2013-09-27 Thread Alexander Lebedev
*Dear Freesurfers,* I apologize if this question has already been asked somewhere - I didn't manage to find the answer in the archives. I have my T1 images processed in FS_5.3 and corresponding PET images co-registered with rawavg.nii-images in SPM (converted from mgz). Now I would like to extract

Re: [Freesurfer] overlay mni152 activation -- difference between tksurfer and freeview

2013-09-27 Thread Yang, Daniel
Thanks Doug! Because it maps from a MNI152 space to the FreeSurfer average space, do you know what register.dat I can use? Is it some sort of inverse mni152.register.dat? Thanks! Daniel -- Yung-Jui "Daniel" Yang, PhD Postdoctoral Researcher Yale Child Study Center New Haven, CT (203) 737-5454

[Freesurfer] freesurfer map with low efftive size

2013-09-27 Thread Knut J Bjuland
How to detect group differences between groups with low group size like for instant n=8 vs n=50? Are there any statistics measures I could use like looking at interaction between group and gender, or should I use doss? Is it feasible to design a custom based design matrix? Knut J

[Freesurfer] R: Re: R: Re: Import FS data to FSL

2013-09-27 Thread stdp82
Hi list and Anastasia. Thank you very much. mri_annotatiion2label works fine. Becouse I should run this command: label2surf -s -o -l -s,--surf input surface-o,--outoutput surface -l,--labels ascii list of label files I should provide also surface file re