Re: [Freesurfer] longitudinal freesurfer- different scanners

2017-09-11 Thread Martin Reuter
below I meant you could run it only on the first two time points. Maybe there is already enough power to see effects. Best, Martin Am 08.09.2017 um 09:13 schrieb Martin Reuter: Hi Michelle, when scanners (or even scanner hardware, like head coil or software upgrades etc) change in a longit

[Freesurfer] Cortical thickness

2017-09-11 Thread Esteban, Eva(GE Healthcare)
Hi Douglas, Thank you very much for that, I will try it! Eva -Original Message- From: freesurfer-boun...@nmr.mgh.harvard.edu [mailto:freesurfer-boun...@nmr.mgh.harvard.edu] On Behalf Of Douglas N Greve Sent: 05 September 2017 22:07 To: freesurfer@nmr.mgh.harvard.edu Subject: EXT: Re: [F

Re: [Freesurfer] group analysis on thickness/mask

2017-09-11 Thread Douglas N Greve
On 09/10/2017 04:02 AM, Xianwei Che wrote: > Dear experts, > > I am going to run a group analysis on thickness but limit the results > to certain regions, say prefrontal cortex. l did find this thread but > failed to make it work on my data > (https://www.mail-archive.com/freesurfer@nmr.mgh.h

Re: [Freesurfer] side effects launching recon-all from matlab system(cmd) call

2017-09-11 Thread Douglas N Greve
The tal_QC_AZS scripts expects the log file to have a specific format, and it looks like something changes when you run it inside matlab. sorry, the only idea I have is that the linux environments might be different in bash vs matlab. On 09/11/2017 08:25 AM, Giuseppe Cabras wrote: > Dear fre

[Freesurfer] Longitunal analysis with FS-FAST

2017-09-11 Thread stdp82
Hi list,I would like to perform longitudinal analysis with FS-FAST, fMRI data.Please could you list, in summary, the processes that I should done?ThanksRegardsStefano___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard

Re: [Freesurfer] side effects launching recon-all from matlab system(cmd) call

2017-09-11 Thread Douglas N Greve
ps, you can run it with -no-talairach to turn off checking (soit will run all the way through) On 09/11/2017 08:25 AM, Giuseppe Cabras wrote: > Dear freesurfer developers, > > I call recon-all -all from a matlab script using a system(cmd) which > is (apparently) correctly executed, as shown in

Re: [Freesurfer] Longitunal analysis with FS-FAST

2017-09-11 Thread Douglas N Greve
there is nothing special about doing long analysis in FSFAST. You just need to set up the group analysis appropriately. On 09/11/2017 12:26 PM, std...@virgilio.it wrote: > Hi list, > I would like to perform longitudinal analysis with FS-FAST, fMRI data. > Please could you list, in summary, the p

[Freesurfer] mri_convert: line 3: 38445 Segmentation fault

2017-09-11 Thread M Janani
Hi Team, Am getting segmentation error during the reconstruction process. Please help in resolving the error. I have attached log for reference. Thanks, Janani ::DISCLAIMER:: ---

[Freesurfer] Normalizing volumes

2017-09-11 Thread Alexopoulos, Dimitrios
Hi, We running FS 5.3 analyses on 2 cohorts (control vs. malnourished adolescents) and I was wonderful what FS measure would be most accurate for normalizing the volumes. (i.e total GM, total WM, suparatentorial, etc). The eTIV measures are significantly different between the cohorts. Is eTIV

[Freesurfer] labels used by freesurfer

2017-09-11 Thread Benjamin Luerweg
dear fs community, as a kind of a freesurfer greenhorn i would kindly ask you to help me out with identifying the different labels used by freesurfer. after using mri segstats most of the labels seem to be describing thereselfs in proper way. what i don’t understand are for example the differen

[Freesurfer] Talairach registration error

2017-09-11 Thread Ariana Vajdi
Hello, Hope this message finds you well. I was beginning to run recon-all on a dataset and was encountering a problem with the talairach registration. I've encountered this error before here and there, but I've been receiving the same error for every scan that I've been trying to run, and I'm not

[Freesurfer] Finding Duplicate Subjects in a Database

2017-09-11 Thread Sherrill, John T
I am trying to find the best way to identify likely duplicate subjects with in a database of about 550 subjects. Some subjects where duel-consented for studies and had multiple scans over a relatively short period of time. What is the best way to tease these out? John Sherrill jtsherr...@uams.e

Re: [Freesurfer] Finding Duplicate Subjects in a Database

2017-09-11 Thread Douglas N Greve
One way is to perform a 6DOF registration between each pair. It is a lot of pairs, but I don't think you can avoid it. Pairs that come from the same subject will have an abnormally high (or low) objective function. You could use mri_coreg (use --no-smooth) . If you've already run all 550 throug

Re: [Freesurfer] Finding Duplicate Subjects in a Database

2017-09-11 Thread Sherrill, John T
I have run recon-all on all of the files. So I should start with asegstats2table ( https://surfer.nmr.mgh.harvard.edu/fswiki/asegstats2table ) ? John Sherrill jtsherr...@uams.edu john_sherr...@me.com (870) 761-0580 From: freesurfer-boun...@nmr.mgh.harvard

Re: [Freesurfer] Finding Duplicate Subjects in a Database

2017-09-11 Thread Douglas N Greve
Yea, that's what I would do. You can run asegstats2table to get a list of the volume for all ROIs (so this gives you a matrix of 550 by about 50). For each row (subject), compare the volumes to that of every other row. You'll need to come up with a comparison function; maybe mean percent diffe

Re: [Freesurfer] mri_convert: line 3: 38445 Segmentation fault

2017-09-11 Thread Douglas N Greve
Try running unsetenv FS_LOAD_DWI then re-running recon-all On 09/11/2017 12:57 PM, M Janani wrote: > > Hi Team, > > Am getting segmentation error during the > reconstruction process. > > Please help in resolving the error. > > I have attached log

Re: [Freesurfer] Normalizing volumes

2017-09-11 Thread Douglas N Greve
You can look here for what stats are available https://surfer.nmr.mgh.harvard.edu/fswiki/MorphometryStats There is no one method that is considered the gold standard. Each will represent a different hypothesis to test. Eg, if you use whole brain volume, then you will be looking at changes with

[Freesurfer] mammillary bodies

2017-09-11 Thread Jacobs H (NP)
Hello all! I am looking for a automatic or semi-automatic segmentation tool for the mammillary bodies. Any suggestions? Many thanks! Heidi ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/free

Re: [Freesurfer] labels used by freesurfer

2017-09-11 Thread Douglas N Greve
On 09/11/2017 01:20 PM, Benjamin Luerweg wrote: > dear fs community, > > as a kind of a freesurfer greenhorn i would kindly ask you to help me > out with identifying the different labels used by freesurfer. > after using mri segstats most of the labels seem to be describing > thereselfs in prop

Re: [Freesurfer] Talairach registration error

2017-09-11 Thread Douglas N Greve
That means that geometry information (ie, what is left and right, anterior or posterior) is not part of the nifti file. Without that information, the anatomical analysis cannot be done. You will either have to fix it yourself (ie, imbed that info into the file) or, better, recreate the file wit

Re: [Freesurfer] Finding Duplicate Subjects in a Database

2017-09-11 Thread Sherrill, John T
Sounds good. Unfortunately when I open many of my files that do not contain an aseg file. Many only have a scripts directory and nothing else. Is there a way to process the files to just get the aseg data without doing a recon-all? John Sherrill jtsherr...@uams.edu john_sherr...@me.com (870) 76

Re: [Freesurfer] Talairach registration error

2017-09-11 Thread Ariana Vajdi
Ah, I see - how would I be able to do either of those? And would I have to check the geometry of each scan individually? Not sure how that works, but I have a substantially large dataset. Thank you for your response! On Mon, Sep 11, 2017 at 1:02 PM, Douglas N Greve wrote: > That means that geom

Re: [Freesurfer] Finding Duplicate Subjects in a Database

2017-09-11 Thread Douglas N Greve
No, you at least have to run it through autorecon2 On 09/11/2017 04:06 PM, Sherrill, John T wrote: > Sounds good. Unfortunately when I open many of my files that do not contain > an aseg file. Many only have a scripts directory and nothing else. Is there > a way to process the files to just ge

Re: [Freesurfer] Talairach registration error

2017-09-11 Thread Douglas N Greve
I don't know how you (or someone else) generated the nifti files in the first place, so I can't help there. If you did not generate them, then talk to the person who did. I do not really recommend trying to do it by hand. You can get AP and SI correctly, but you'll never know whether they are L

Re: [Freesurfer] Talairach registration error

2017-09-11 Thread Ariana Vajdi
Ok - thank you! I will speak to the person who generated the files then. On Mon, Sep 11, 2017 at 1:56 PM, Douglas N Greve wrote: > I don't know how you (or someone else) generated the nifti files in the > first place, so I can't help there. If you did not generate them, then > talk to the person

Re: [Freesurfer] group analysis on thickness/mask

2017-09-11 Thread Xianwei Che
Dear Doug, Thank you for the answer. I will try it out. Regards *-* Mr Xianwei Che PhD Candidate Monash Alfred Psychiatry Research Centre (MAPrc) Central Clinical School & the Alfred Monash University Level 4, 607 St Kilda Road, Melbourne 3004, Australia On 12 September 2017 at 01:4

Re: [Freesurfer] group analysis on thickness/mask

2017-09-11 Thread Xianwei Che
Dear Doug, After some trial and error I am still not able to run group analysis in ROI manner. Here is my understanding: I need to define a label (mri_binarize ?) in which my ROIs should be labeled as 1 with other regions being 0. Then I can take this label to glm with --lable and then run correc

[Freesurfer] (no subject)

2017-09-11 Thread yl88
Hi all, I have finished the command “recon -all” without error. But I get an error that says: “Received X error! Error code :158 Request code : 148 Minor code: 2 Error text :’GLXBadLargeRequest’” I am using the command “tksurfer sub lh inflated”. Then clic

Re: [Freesurfer] mri_convert: line 3: 38445 Segmentation fault

2017-09-11 Thread M Janani
Hi Douglas, We tried running this command. But command not found error. Thanks, Janani -Original Message- From: freesurfer-boun...@nmr.mgh.harvard.edu [mailto:freesurfer-boun...@nmr.mgh.harvard.edu] On Behalf Of Douglas N Greve Sent: 12 September 2017 01:25 To