Freesurfer April 2017

freesurfer@nmr.mgh.harvard.edu

123 participants
217 discussions

Extract single time frame
by Rockers, Elijah D. 16 Oct '22

16 Oct '22

Hello again, I have a large time series in dicom or .nii format. I am interested in extracting a single time frame from it. I did this before, I believe with freesurfer, but I have somehow forgot the name of the command, and I can't seem to find it. I believe it could be used to specify particular regions of the volume, as well as time. I need the entire volume, still, but only one frame. Thanks in advance! Eli Houston Methodist. Leading Medicine. Ranked by U.S.News & World Report as one of America's "Best Hospitals" in 11 specialties. Named to FORTUNE® Magazine's "100 Best Companies to Work For®" list 10 years in a row. Designated as a Magnet hospital for excellence in nursing. Visit us at houstonmethodist.org. Follow us at twitter.com/MethodistHosp and www.facebook.com/HoustonMethodist. ***CONFIDENTIALITY NOTICE*** This e-mail is the property of Houston Methodist Hospital and/or its relevant affiliates and may contain restricted and privileged material for the sole use of the intended recipient(s). Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender and delete all copies of the message. Thank you.

4 4

group analysis of large data sets
by Wang, Xin 22 Apr '20

22 Apr '20

Hello, FreeSurfer Group, What is the maximal matrix size for glm_fit process? How to use FreeSurfer for group analyses of more than 2000 subjects, 128 variables, and 128 Classes? Thank you. Xin

4 5

Longitudinal stream : LME and limits of model
by Matthieu Vanhoutte 14 Dec '18

14 Dec '18

Dear Freesurfer’s experts, I would have some questions regarding the LME model to be used in longitudinal stream: 1) Which are the ratio limits or % of missing timepoints accepted ? (according time, I have less and less subjects time points) 2) Is it possible to include patients that would miss the first timepoint but got the others ? 3) Considering a group in longitudinal study, which is the number of subjects minimal of this group accepted for LME modeling ? 4) Finally, concerning quality control and among a big number of total time points, which essential controls are necessary ? (Control of norm.mgz of the base, alignment of longitudinal timepoints on base,… ?) Best regards, Matthieu

2 13

Cortical Parcellations in individual space using Yeo et al 2011
by Bailin, Emma 24 Oct '18

24 Oct '18

Hello, I'm preparing to do resting state analyses and I'd like to use the Yeo 2011 network atlas for the cortical parcellations. Looking through the archive, I know that mri_surf2surf with the -sval-annot flag can be used to convert the fsaverage from the Yeo et al 2011 study to an individual subject space, but I noticed a caveat to this when I called mri_surf2surf -help. The caveat is on example 5: "this is not a substitute for running the cortical parcellation! The parcellations that it maps to the new subject may not be appropriate for that subject." Given this information, I've got a few questions: 1) How accurate is the mapping using mri_surf2surf? That is, is it good for preliminary data, but not for the final analysis? 2) How do you run the cortical parcellation using the Yeo 2011 atlas? [I know that mris_ca_train and mris_ca_label exist, but I'm unsure if they are the right commands to run when I'm not building my own atlas] 3) If I do the cortical parcellations using the Yeo 2011 atlas, will the edits/labels I've done using the Desikan atlas remain accurate? This goes back to the second question, as I'm not sure where in the general processing stage I need to go. Thank you! Sincerely, Emma Bailin Emma Bailin Research Coordinator Laboratory for Visual Neuroplasticity Schepens Eye Research Institute Mass. Eye and Ear Infirmary Harvard Medical School Mass. Eye and Ear Confidentiality Notice: This e-mail and any files transmitted with it are confidential and are intended solely for the use of the individual(s) addressed in the message above. This communication may contain sensitive or confidential information. If you are not an intended recipient, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited. If you believe you have received this e-mail in error and the email contains patient information, please contact the Mass. Eye and Ear Compliance Line at 844-815-4401. If the e-mail was sent to you in error but does not contain patient information, please contact the sender and delete the e-mail.

2 2

Yeo 2011 Functional Cortical Parcellations
by Bronwyn Overs 24 Oct '18

24 Oct '18

Hi Mailing List, I am attempting to apply the Yeo 2011 7-network fucntional parcellations to a set of fs MRIs processed with v5.1.0. Below are listed the first three steps I plan to take and I am seeking advice as to: A) Whether this approach is valid. B) Steps to take next. * Steps 1-3: * *1. Run MNI152 1mm template through recon-all* recon-all -i FSL_MNI152_FreeSurferConformed_1mm.nii -subjid Yeo2011_MNI152_FS recon-all -all -subjid Yeo2011_MNI152_FS *2. Warp the Yeo_atlas1mm.nii.gz to freesurfer nonlinear volumetric space* mri_vol2vol --mov Yeo2011_7Networks_MNI152_FreeSurferConformed1mm_LiberalMask.nii --s Yeo2011_MNI152_FS --targ $FREESURFER_HOME/average/mni305.cor.mgz --m3z talairach.m3z --o Yeo2011_atlas_FSI.nii.gz --nearest *3. warp the Yeo_atlas_freesurfer_internal_space.nii.gz to each subject:* mri_vol2vol --mov $SUBJECTS_DIR/subjID/mri/norm.mgz --s subjID --targ Yeo2011_atlas_FSI.nii.gz --m3z talairach.m3z --o Yeo2011_atlas_subjID.nii.gz --nearest --inv-morph When previously mapping the Choi 2012 straital parcellations, steps 4 and 5 were: 4. *Creating a striatal mask in the native subject's space from freesurfer segmented Caudate (11 & 50), Putamen (12 & 51), and Accumbens (26 & 58)*: mri_binarize --i subjID/mri/aparc+aseg.mgz --match 11 --match 12 --match 26 --match 50 --match 51 --match 58 --o striatum_mask.nii.gz *5. **Using this mask to mask the choi striatal parcellations* fslmaths Choi2012_atlas_subjID.nii.gz -mas striatum_mask_subjID.nii.gz Yeo_atlas_subjID_mask.nii.gz Do I need to do a similar thing for the Yeo cortical parcellations and if so what regions should I include in the cortical mask? -- Kind regards, Bronwyn Overs Research Assistant Neuroscience Research Australia Neuroscience Research Australia Margarete Ainsworth Building Barker Street Randwick Sydney NSW 2031 Australia *M* 0411 308 769 *T* +61 2 9399 1883 neura.edu.au <http://neura.edu.au> Follow @neuraustralia on twitter <https://twitter.com/neuraustralia>Follow NeuRA on facebook <https://www.facebook.com/NeuroscienceResearchAustralia>Subscribe to the NeuRA Magazine <http://www.neura.edu.au/help-research/subscribe>

2 5

Morphing Buckner2011 MNI152 to subject's space {Disarmed}
by Peled, Noam 05 Oct '18

05 Oct '18

Dear group, I'm trying to morph the Buckner2011<http://www.freesurfer.net/fswiki/CerebellumParcellation_Buckner2011> cerebellum segmentation map from MNI152 to subject's space: mri_vol2vol --mov subjects/sub01/mri/norm.mgz --s sub01 --targ Buckner2011_17Networks_MNI152_FreeSurferConformed1mm_LooseMask.nii.gz --m3z talairach.m3z --o sub01_Buckner2011_atlas_17_loose.nii.gz --nearest --inv-morph It worked with the 17 networks, but didn't work with the 7 networks version. Any ideas? This is really strange. Thanks, Noam

3 3

Building from source -- autoconf error
by Alle Meije Wink 29 Mar '18

29 Mar '18

I'm trying to build FreeSurfer from source on my Debian 8 (jessie) system. (64 bit, using g++ 4.9 for compilation) After $ cvs -d :pserver:anonymous@fsvm.nmr.mgh.harvard.edu:/usr/fscvsroot login $ cvs -d :pserver:anonymous@fsvm.nmr.mgh.harvard.edu:/usr/fscvsroot checkout -P dev $ cd dev $ cvs update -d # just to make sure $ ./setup_configure I get these messages: rm -rf autom4te.cache libtoolize --force libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `config'. libtoolize: linking file `config/ltmain.sh' libtoolize: putting macros in `m4'. libtoolize: linking file `m4/libtool.m4' libtoolize: linking file `m4/ltoptions.m4' libtoolize: linking file `m4/ltsugar.m4' libtoolize: linking file `m4/ltversion.m4' libtoolize: linking file `m4/lt~obsolete.m4' libtoolize: Consider adding `AC_CONFIG_MACRO_DIR([m4])' to configure.in and libtoolize: rerunning libtoolize, to keep the correct libtool macros in-tree. aclocal aclocal: warning: autoconf input should be named 'configure.ac', not 'configure.in' aclocal: error: configure.in:2045: file 'm4/autotroll.m4' does not exist Which looks like a not-(anymore)supported use of autoconf? I found one previous message on the list about autotroll https://mail.nmr.mgh.harvard.edu/pipermail//freesurfer/2012-January/021854.… that provided another version of configure.in which might solve the issue. And it did in the original case but sadly not for me. I get the same error message also with the new configure.in -- there should probably be a configure.ac? If anyone knows how to make this work (e.g. by modifying the configure script) that would be fantastic.

8 17

mris_flatten error: bad vertex
by Ji Won Bang 20 Feb '18

20 Feb '18

Dear. Freesurfer experts. Hi. I'm having a problem with mris_flatten (version 5.3.0) Could you please help me fix this problem? My command line is: mris_flatten -w 0 -distances 12 7 $SUBJECTS_DIR/$SUBJECT/surf/lh.oc.patch.3d $SUBJECTS_DIR/$SUBJECT/surf/lh.oc.patch.flat It returns the error: using write iterations = 0 sampling 7 neighbors out to a distance of 12 mm reading patch /home/jbang/Projects/replay/mri//replay06/surf/lh.oc.patch.3d with 30434 vertices (20.5% of total) MRISreadPatch: bad vertex # (148517) found in patch file No such file or directory When making the patch lh.oc.patch.3d, I followed the processes below: tksurfer-sess -s $SUBJECT -df sessdirfile -hemi lh -analysis retino -contrast UpperLower select 3 points along a boundary between upper and lower visual fields (near calcarine sulcus) and press "Cut line". Then, select 4 points to define the cutting plane: 1 on lower side of the line, 2 on upper side of the line, 3 on the opposite surface (use rotation tool), and 4 to specify which portion of surface is kept, and press "Cur plane". File->Patch->Save Patch As lh.oc.patch.3d So I think I made the patch correctly. ! weird thing that I suspect is that when I click save patch as, the default location is $SUBJECTS_DIR/fsaverage/surf/ , so I had to change it to $SUBJECTS_DIR/$SUBJECT/surf Could you please help me? Thanks a lot! Best, Ji Won

3 4

Volume to Surface mapping looks great for Vols created in FSL but not SPM
by Rita Elena Loiotile 15 Feb '18

15 Feb '18

Hi, I'm trying to compare analyses that I've done entirely on the surface to analyses I've done in the volume. I'm comparing the analyses by projecting the volume analyses to the surface (HCP's 32k_fs_LR). The commands I'm using are: mri_vol2surf --mov $niftiFile --mni152reg --hemi ${hemi} --projfrac-max 0 1 0.2 --o ${giftiFile}.$hemi.gii; mri_surf2surf --srcsubject fsaverage --srcsurfval ${giftiFile}.$hemi.gii --trgsubject 32k_fs_LR --trgsurfval ${giftiFile}.$hemi.gii --hemi ${hemi}; It seems that the FSL volumes look identical to the surface analysis, when mapped. (Our surface analysis is mainly FSL-based, so this makes sense.) The SPM mapping, however, looks very odd. It isn't just that the intensity differs, but the localization of high intensity areas also varies. It seems that everything is shifted a bit superior and, possibly, posterior to the true location (as seen on the surface analysis). I'm wondering if I'm doing anything obviously wrong in my command usage. The brains were normalized to the MNI ICBM 152 template in SPM. I *think* it's suitable to use the -mni152reg flag in the command. I can attach pictures of the comparison if you'd like. Thanks in advance, Rita

3 5

Nonlinear CVS registration into average brain for coordinates
by Zhou, David Wei 10 Jan '18

10 Jan '18

Hi all, I have a data set of 14 subjects with intracranial (both cortical and subcortical) electrode implants, already recon'ed in Freesurfer, with an average brain + surface computed of these subjects. I would like to map each subject's electrode coordinates (a set of RAS points) into the average brain using a nonlinear transformation to account for individual deviations in surface topology. I'm trying to figure out the steps that must be taken to achieve this. With my average brain as a template, it seems like I would use mri_cvs_register to produce each subject warped onto the template. After generating those warps, how does one apply the same warp to a set of coordinates, for example to find out where my electrodes end up in the template brain? Which output file in .../cvs contains the data necessary to compute the coordinates in the template? I'd appreciate any instruction, thanks! David

3 2

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Freesurfer April 2017