Freesurfer

freesurfer@nmr.mgh.harvard.edu

11 participants
30080 discussions

VM pass code request
by Nathan Bolander 05 Apr '22

05 Apr '22

External Email - Use Caution I am sending email to the list to request the pass code to extract the VM archive, as instructed in the Wiki. Best regards, Nathan

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Still seeking Beta Testers for new FreeSurfer discussion platform
by Sennott, Liam Ricker 05 Apr '22

05 Apr '22

Hello again, FreeSurfer community, I’m reaching out to you again today because we are still in search of people who are willing to test our new FreeSurfer help platform. Thank you to those who have already responded; we will be reaching out to you shortly. The FreeSurfer administrative team is working on transitioning the current FreeSurfer mailing list infrastructure to a new, more user-friendly platform called Discourse. We’re still finalizing the website, so we’re looking for potential beta testers for this new platform. As a beta tester, you will post your questions to Discourse and interact with the FreeSurfer staff in discussion board format. Please email lsennott(a)mgh.harvard.edu<mailto:lsennott@mgh.harvard.edu> if you are interested in helping us test this new system! Thank you, Liam Sennott FreeSurfer Admin

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Freesurfer 7.2.0 release in Ubuntu 18d // .ova.7z password
by ΑΙΚΑΤΕΡΙΝΗ ΝΑΛΕΝΤΖΗ-ΜΑΡΙΑΝΟΥ 05 Apr '22

05 Apr '22

External Email - Use Caution Greetings team Freesurfer, Following the instructions in your wiki page, I’m sending you to kindly provide me with the .7z password for the said file (Freesurfer 7.2.0 release in Ubuntu 18.04.06: FS_7_2_0_Ubuntu_18_04_06.ova.7z). Thanks a lot in advance, Katerina Nalentzi

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Re: [Freesurfer] freeview crashes
by fsbuild 04 Apr '22

04 Apr '22

External Email - Use Caution Hello Stephen, I'll assume the VM is setup according to the online instructions, e.g., the VM is assigned 8G of RAM and 2 cores from the host machine.  I'll also assume you are opening files with freeview from within the VM's virtual disk, e.g., from the home directory you login to on the VM. I would try upgrading to the latest version of VirtualBox for Windows which is currently 6.1.32.  When you launch VirtualBox it should notify you there is a new version available and ask if you want to upgrade. Do you have some version of the Windows Subsystem for Linux (WSL) also installed?   That can sometimes be an issue, but the error you report does not look to be from that.. - R. "Ogier, Stephen E. (Assoc)" (stephen.ogier(a)nist.gov) April 4, 2022 at 13:41         External Email - Use Caution         Hi,   I’m new to Freesurfer, and I’m running into a reoccurring crash issue when I use freeview. I’m following the instructions at MailScanner has detected a possible fraud attempt from "secure-web.cisco.com" claiming to be https://secure-web.cisco.com/1DlH8w4XzRPlr6j2W2uoSddaowTh89VvPAV2BtYs1gUDJd… After I open freeview, if I use the mouse to manipulate the image, eventually the program crashes and I receive this error message.   The instruction at 0x00007ffa0d9b3460 referenced memory at 0x0000000000000010. The memory could not be read.   Click on OK to terminate the program   I’ve received this kind of error multiple times. The addresses for the instruction varies, and the memory address has also been 0x0000000000000000.   Has anyone else come across this problem? For reference, I’m running the FS_7_2_0_ubuntu_18_04_06 VM in VirtualBox 6.1 on a Windows 10 PC (Version 20H2, OS Build 19042.1586).   Thanks,   Stephen Ogier, PhD Postdoctoral Associate, Magnetic Imaging Group, Applied Physics Division National Institute of Standards and Technology     _______________________________________________ Freesurfer mailing list Freesurfer(a)nmr.mgh.harvard.edu https://secure-web.cisco.com/16a7qmMIdxOIWkXtmYujOCnPYSPLLLAva0RpyWvV3ipyeE… The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Mass General Brigham Compliance HelpLine at https://secure-web.cisco.com/1oxusVVqDl94uN0mIyLg01OrJsCHvrU4mMrkzcwa3yQrKE… <https://secure-web.cisco.com/1Sc1llL2poCCCGw_IR0ycNNKzwpiSjSMk6KIu2Xbq8_zn7FhTCJ5r2F2PPXirUE47fD-yf2NaguwUq6EMiBxC3nJWE4YQWAEJbhwTC8d4h7KmcEXa5ystUgaFZoFgspgdzxjsh6zIWK6C-U_H0zsjhJ8zxcAt_oyJoMQga1oNFpgOAA4idJSlhJlZpE0-glZqGrrSTxanNzC65g6pzvvAmPbzis_surNQw0AVJyJQW71tkXCo97viIry-nNNui2U-MBHIFa6kq3bNufd_uV56EQBIb2PSfmB5Io_o53-Zlsvv9AGH8SvscmjA-GM2ixWT/https%3A%2F%2Fwww.massgeneralbrigham.org%2Fcomplianceline%26gt; . Please note that this e-mail is not secure (encrypted). If you do not wish to continue communication over unencrypted e-mail, please notify the sender of this message immediately. Continuing to send or respond to e-mail after receiving this message means you understand and accept this risk and wish to continue to communicate over unencrypted e-mail.

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infantFS surface stats file
by Fernanda Hansen P. de Moraes 04 Apr '22

04 Apr '22

External Email - Use Caution Dear Freesurfer experts, I am running the infantFS version for subjects under 1-year-old, and it seemed to run successfully, despite I can't find the surface stats file with the average cortical thickness. Is it usually at the stats directory? Thank you very much in advance, Fernanda Hansen P. de Moraes fernandahmoraes(a)gmail.com Doutoranda em Ciências Médicas | Instituto D'Or de Pesquisa e Ensino e metaBIO (IF-UFRJ)

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Re: [Freesurfer] Beta values
by Laura Willers de Souza 04 Apr '22

04 Apr '22

External Email - Use Caution Sure! The fsgd file looks like this: GroupDescriptorFile 1 Title cortisol_CSF Class Main Variables cortisol_CSF Input 011_S_0003_S9128 Main 2.397895273 Input 022_S_0004_S9233 Main 2.772588722 Input 011_S_0005_S9137 Main 3.044522438 Input 011_S_0008_S9196 Main 2.397895273 Input 011_S_0010_S8800 Main 2.151762203 ... (n=300) Best, Laura. --------- On 4/3/2022, Douglas N. Greve wrote: Can you send the fsgd file? On 4/1/2022, Laura Willers de Souza wrote: Hello FreeSurfer Developers, I'm extracting beta values from some analyzes and I would like to know if I'm extracting and interpreting these values correctly. To extract the beta values I used this command: mri_segstats --seg lh.cortisol_CSF.glmdir/cortisol_CSF_slope/perm.th20.neg.sig.ocn.mgh --i lh.cortisol_CSF.glmdir/beta.mgh --excludeid 0 --avgwf lh.cortisol_CSF.beta.clusters.dat The model consists of 1 group and 1 covariate. I used the contrasts for intercept and slope. The beta values extraction file contains 2 lines (image below). [cid:228fe1e8-abaa-4279-83ec-5c81c3fb6a37] * Would the first line be the beta value for the intercept and the second line for the slope? * Thus the glm equation for the 1st cluster would be: cortical thickness = 2.57 - 0.12X + n Is this correct?

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freeview crashes
by Ogier, Stephen E. (Assoc) 04 Apr '22

04 Apr '22

External Email - Use Caution Hi, I'm new to Freesurfer, and I'm running into a reoccurring crash issue when I use freeview. I'm following the instructions at https://secure-web.cisco.com/1-t_-_RERzWYk0fp1i5OBDudvWxzXiP-RYynl0RMyOIkHs… After I open freeview, if I use the mouse to manipulate the image, eventually the program crashes and I receive this error message. The instruction at 0x00007ffa0d9b3460 referenced memory at 0x0000000000000010. The memory could not be read. Click on OK to terminate the program I've received this kind of error multiple times. The addresses for the instruction varies, and the memory address has also been 0x0000000000000000. Has anyone else come across this problem? For reference, I'm running the FS_7_2_0_ubuntu_18_04_06 VM in VirtualBox 6.1 on a Windows 10 PC (Version 20H2, OS Build 19042.1586). Thanks, Stephen Ogier, PhD Postdoctoral Associate, Magnetic Imaging Group, Applied Physics Division National Institute of Standards and Technology

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surf2surf - FS-FAST z.nii.gz from fsaverage to fsaverage5
by stdp82＠virgilio.it 04 Apr '22

04 Apr '22

External Email - Use Caution Hi list, I have carefully assessed the guidelines by surf2surf --help, but I need for your help. I want transform the z.nii.gz, which I obtained from seed-based functional connectivity by FS-FAST, from the fsaverage to fsaverage5. I have run: mri_surf2surf --s fsavarege --hemi lh --sval-tal-xyz ../fc.Xseed.surf.lh/g1v0/intercept/z.nii.gz --trgsubject fsaverage5 --tval lh.zfsaverage5.nii.gz --tval-xyz ./fc.Xseed.surf.lh/g1v0/intercept/z.nii.gz is the FS-FAST output in fsaverage lh.zfsaverage5.nii.gz would be the FS-FAST output in fsaverage5 but this error occurs /Applications/freesurfer/subjects/subject_prova/fsavarege/surf/lh.sphere.regNo such file or directory Stefano

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Tracula Longitudinal Reproducibility
by Thorn, Kathryn 04 Apr '22

04 Apr '22

External Email - Use Caution Hello all, I am currently using the longitudinal implementation of Tracula with a dataset of five subjects each with two time points. All follow-up time points were acquired roughly three weeks after all baseline time points on a different scanner (when our lab upgraded from a Siemens TimTrio to a Prisma) but with an equivalent sequence. In the past, ROI analyses have resulted in similar ROI means between baseline and follow up scans - roughly a < 5% difference between baselines and follow ups. I was hoping for a similar range of differences between baseline and follow up whole-tract means with Tracula. I've looked at the genu, splenium, and left/right SLF 1; the % differences between baselines and follow ups are all over the place, ranging from ~25% to <1%. After looking at the data, my team believes this wide range of differences to possibly and/or partially be due to some of the tracts sampling CSF. The genu and the splenium in particular yielded very large % differences for us, so our thought is that masking out CSF should cause our % differences to go down. My question is this: Is there an elegant way to implement CSF masking with Tracula? I don't believe Tracula has the ability to do the CSF masking itself, but is there a best practice of when/how to mask out CSF that works best with Tracula? Thank you! Kayti Thorn (she/her) Database Specialist Medical University of South Carolina Department of Neurology Center for Biomedical Imaging 135 Cannon St. CS101 Charleston, SC 29425

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Inverse transform
by Aleksandra Szum-Jakubowska 04 Apr '22

04 Apr '22

External Email - Use Caution Dear Freesurfer Experts, I conduct the segmentations' examines using Freesurfer recon-all (for segmentation hippocampus and ventricles), SAMSEG (for ventricles) and using FSL FIRST (for hippocampus). Now I have a problem with compare the result (calculating overlap). For Freesurfer and FIRST I used T1 MRAGE image (dimentions 176x256x256). For Samseg I used T2 FLAIR images coregistered to T1 MPRAGE (dimentions 176x256x256) I have result from Freesurfer with dimensions 256x256x256 I have results from FSL First and SAMSEG with dimensions 176x256x256. It is important that all results are concerned other spaces, so I cannot calculate overlap using that results and I have to perform transformation to the same space. I tried doing this: mri_label2vol --seg aseg.mgz --temp rawavg.mgz --o aseg-in-rawavg.mgz --regheader aseg.mgz but my rawavg image has dimensions 176x256x174). But when I used brain.mgz or T1.mgz image, my results are moved. I have no idea how to perform the properly inverse transformation for getting segmentation results in originally T1 MPRAGE space. Could You give me some advice? Thanks a lot for your help. Best regards, Aleksandra [UMB_MUB] Niniejsza wiadomosc oraz jej zalaczniki moga zawierac informacje chronione prawem. Jesli Panstwo nie jestescie adresatem tej wiadomosci, prosimy poinformowac o tym fakcie nadawce i usunac ja wraz z zalacznikami. Kopiowanie i/lub przesylanie dalej informacji zawartych w tej wiadomosci przez osoby do tego nieuprawnione jest zabronione. The information in this e-mail may be legally privileged. It is intended solely for the addressee. Access to this e-mail by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. Administratorem Panstwa danych osobowych jest Uniwersytet Medyczny w Bialymstoku. Informacja dotyczaca zasad przetwarzania Panstwa danych dostepna jest pod adresem: https://secure-web.cisco.com/1G7fVk0yj2NQ8lWF3RpIcAXswlnvuIC6QkNdtflc_gKuCw…

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