Freesurfer

freesurfer@nmr.mgh.harvard.edu

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30078 discussions

mri_jacobian: what are the correct files to list as arguments?
by Danielle Carrol 25 Jul '22

25 Jul '22

External Email - Use Caution Hello, I am trying to compute the Jacobian for use in VBM. I found the following command on this email archive (Re: [Freesurfer] Jacobian mri_cvs_register (mail-archive.com)<https://secure-web.cisco.com/1LenU0lNm3dfOywG0njDPZc5l9fJtDrLhnstVxKLgojhf4…>: mri_jacobian <3d morph> <template volume> <output volume> I am assuming the 3d morph is the file mri/transforms/talairach.m3z, since this file provides the nonlinear warp. However, I am confused about which file should be the "template volume". Is this the final transformed/registered volume for each subject (i.e. ${SUBJECTS_DIR}/<subject name>/mri/brain.mgz)? Is it the fsaverage template $FREESURFER_HOME/subjects/fsaverage ? I am using version 6.0.0. Thank you, DC PhD Student University of Wisconsin-Madison

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segment_subregions stats files missing?
by Alvarado, Luis 25 Jul '22

25 Jul '22

External Email - Use Caution Hi all, I ran the segment_subregions thalamus --cross on some of my subjects but I cannot find the *.stats files in the stats folder. I was wondering if I am missing something? I need the *.stats files to aggregate the results via asegstats2table to feed the mri_glmfit tool. Is there another way to do this without the *.stats files? I am using the freesurfer-linux-ubuntu20_x86_64-dev-20220716-015eeb0 build on Ubuntu 20.04.4 LTS. Best, Luis

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SynthSR: Illegal Hardware Instruction
by Abdelkarim, Ahmed 25 Jul '22

25 Jul '22

External Email - Use Caution Hello I have an issue getting SynthSR working with FreeSurfer dev. I have MacBook Pro with apple M1 chip and MacOS Monterey. In bash terminal, after setting up FreeSurfer, and running the SynthSR command, I get this error ‘’Illegal instruction: 4’’. Have you had a similar issue before? Any advice? Many thanks in advance. Regards Ahmed

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Failed to sign in
by krystaly 25 Jul '22

25 Jul '22

External Email - Use Caution Dear FS experts, I'm using FS 7.2.0 on ubuntu 18.4.6, which is running on Windows 10. However, when I entered the password that I received doesn't let me sign in. Would you please kindly advise? Thanks. Regards, Krystal Tel.: +852 2255 5024 Fax: +852 2872 5828 Address: Room 304, 3/F, New Clinical Building, 102 Pokfulam Road, Hong Kong.

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Re: [Freesurfer] Qdec: Can't find a usable init.tcl
by fsbuild 24 Jul '22

24 Jul '22

External Email - Use Caution Hello Rosa, The qdec program is deprecated in 7.X releases and is no longer maintained. In the 7.X releases, you can try using freeview for images and from the command line there are the mri* commands (mris_surf2surf, mri_glmfit, mri_glmfit-sim, etc.) for stream processing. If you still need to run qdec in the Freesurfer 6 distribution, then you could ask your IT department to create a virtual machine or container to host an older copy of your linux OS that supports the correct version of tcl/tk for Freesurfer 6.X and install the Freesurfer 6 distribution in it.   Linux has quemu for built in virtualization which you may already have installed on your server(s).  There is also docker for containers and VirtualBox for virtual machines which likewise can run an older version of an OS and run Freesurfer 6 in those.  Your IT group may support docker and/or VirtualBox as well. - R. On Jul 24, 2022, at 14:41, Rosa de los Angeles Tanzi <tanzi(a)cbs.mpg.de> wrote:       External Email - Use Caution        Dear FreeSurfer Developers,I'm attempting to open Qdec on my linux server. I used to open it with freesurfer 6.0.0 activated to analyze our local gyrification index data. That version is not available anymore in our service; hence, the Freesurfer version I can use is 7.1.0 and when I tried to open Qdec the following message appears: Can't find a usable init.tcl We tried to contact our IT sever to see if there was a way we could use our old Freesurfer version 6.0.0 (which we used to calculate the LGI). But they replied to us with the following:"A G6 compute server must be used for freesurfer 6.0.0.. The background is that the TCL 8.4.6 used by Freesurfer is very old (from 2008) and is no longer supported by current operating systems. The same applies to the latest version 7.2.0.We have TCL 8.6.11 available."Is there anyway we can install Qdec for this new version of freesurfer 7.1..0? so we are able to continue with the analysis. I am open to any other possible solutions.Kind regards,Rosa_______________________________________________Freesurfer mailing listFreesurfer@nmr.mgh.harvard.eduhttps://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

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Qdec: Can't find a usable init.tcl
by Rosa de los Angeles Tanzi 24 Jul '22

24 Jul '22

External Email - Use Caution Dear FreeSurfer Developers, I'm attempting to open Qdec on my linux server. I used to open it with freesurfer 6.0.0 activated to analyze our local gyrification index data. That version is not available anymore in our service; hence, the Freesurfer version I can use is 7.1.0 and when I tried to open Qdec the following message appears: Can't find a usable init.tcl We tried to contact our IT sever to see if there was a way we could use our old Freesurfer version 6.0.0 (which we used to calculate the LGI). But they replied to us with the following: "A G6 compute server must be used for freesurfer 6.0.0. The background is that the TCL 8.4.6 used by Freesurfer is very old (from 2008) and is no longer supported by current operating systems. The same applies to the latest version 7.2.0. We have TCL 8.6.11 available." Is there anyway we can install Qdec for this new version of freesurfer 7.1.0? so we are able to continue with the analysis. I am open to any other possible solutions. Kind regards, Rosa

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(no subject)
by Danielle Carrol 21 Jul '22

21 Jul '22

External Email - Use Caution Hello, I am trying to compute the Jacobian for use in VBM. I found the following command on this email archive (Re: [Freesurfer] Jacobian mri_cvs_register (mail-archive.com)<https://secure-web.cisco.com/1qsFwf44rr-eT9vRJ1SxsVMe3116pQYdJVNi9THejnTrxk…>: mri_jacobian <3d morph> <template volume> <output volume> I am assuming the 3d morph is the file mri/transforms/talairach.m3z, since this file provides the nonlinear warp. However, I am confused about which file should be the "template volume". Is this the final transformed/registered volume for each subject (i.e. ${SUBJECTS_DIR}/<subject name>/mri/orig.mgz)? Or is it the fsaverage template $FREESURFER_HOME/subjects/fsaverage ? Thank you, DC PhD Student University of Wisconsin-Madison

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Recon All
by Amar Shukla 21 Jul '22

21 Jul '22

External Email - Use Caution Dear Sir, I am a PhD scholar using the freesurfer tool to conduct my research work. I tested the recon all method in the Free Surfer, and it was effective with the data set that was used by me. What are the exact default parameters for the different processes of recon all that were used in motion correction, intensity normalization, etc?. It would be really helpful if you could provide me with the link or the article where it is explained clearly, this will help me to get through these processes in more depth and in a more constructive manner. Although the Free Surfer website has an FAQ regarding this process, there are no clear explanations about what the default parameters are during recon all. -- With Regards, Amar Shukla PHD Scholar UPES

2 3

Screenshots in Freeview within a container
by Garikoitz Lerma-Usabiaga 21 Jul '22

21 Jul '22

External Email - Use Caution Hi! Is there any way to write freeview screenshots when running Freeview as part of a Docker container? thanks! Gari

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Re: [Freesurfer] volume group analysis
by Douglas N. Greve 21 Jul '22

21 Jul '22

The sig.table.dat has the sig values in it (ie, -log10(p)*sign). The gamma.table.dat will have the contrast values. These are NOT percentages but have the units of the input y table. On 7/20/2022 9:18 AM, Carolina Ferreira wrote: > External Email - Use Caution > > Hi, I'm using the asegstats table to run a group analysis and it worked. However I’m not sure what file contains the results. Is it the sig.table.dat? Are the numbers in there the percentage difference between the groups? > > Thank you > Carolina

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