Freesurfer

freesurfer@nmr.mgh.harvard.edu

16 participants
30084 discussions

Regarding: 1.5T images
by Dr Sampada Sinha 23 Feb '16

23 Feb '16

Hello freesurfer experts, I am trying to do T1w analysis using freesurfer. The raw images are in dicom format. However, when I view those raw dicom images, some of the brain areas are missing. I just wanted to ask if there is any tool to reconstruct those missing brain areas in the raw images using freesurfer or I need to discard those participants scan altogether? Also, because the resolution is not good with 1.5T, I have seen that skull stripping is not good with a large chunk of skull tissue coming in the processed images. I tried to adjust the watershed parameters and somehow it worked, but it wasn't satisfactory. I tried to run it through fsl bet and got a good skull strip. However, after running the recon-all followed by auorecon11 no skull strip command the with autorecon2 and autorecon3 I am getting excessive topologic defect. I am attaching the log file with this email for your perusal Will greatly appreciate if I can be helped regarding these two problems I am presently facing with the analysis. Thanks and regards, Sampada Pre-doctoral student India

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control points function
by Kiersten Snyder 23 Feb '16

23 Feb '16

Hello, I am new to using Freesurfer and am currently using it for a biomedical image processing class. I am working on a project and would like to know the image processing technique behind the Control Points function. Is it region growing, or what other process? Thanks for the help! Kiersten

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Ris: eTIV question
by angela.favaro＠unipd.it 23 Feb '16

23 Feb '16

3 6

Read_surf error in reading "lh.seghead" head surface created from "mkheadsurf"
by Maheen Siddiqui 22 Feb '16

22 Feb '16

Dear FreeSurfer users, I have used the "mkheadsurf" function to create "lh.seghead" in the surf folder of my subject. Now I am trying to extract the vertices and faces of "lh.seghead" in the following way: *[vertex_coords, faces] = read_surf('lh.seghead')* but get an error in read_surf which is: *Undefined function or variable "faces".* * Error in read_surf (line 80)* * faces = faces+1;* After a bit of investigation I found that the "magic" number of the file is 16777213 while the triangle magic number is 16777214. Since these are unequal, it doesn't go into the if statement where faces are defined. When I try to changed the magic number manually to be the same as the triangle magic number, I get the following error: *Error using reshape* * To RESHAPE the number of elements must not change.* * Error in read_surf (line 76)* * faces = reshape(faces, 3, fnum)' ;* But I don't think making this change is a good idea as it would affect the surfaces that I try to read that DO have magic number that is actually equal to the triangle magic number. Does anybody know why this might be happening? Any suggestions for me to try? The read_surf works fine when I use it for the pial surface, just not the lh.seghead. I am using FreeSurfer version 5.3.0. I would appreciate any advice! Thanks, Maheen

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Multiple Frames Error
by Marissa Pifer 22 Feb '16

22 Feb '16

Hi freesurfers, I am trying to run the recon-all command on a T1 weighted structural image for one of my subjects and I keep getting this error "Checking for (invalid) multi-frame inputs... ERROR: input(s) cannot have multiple frames! /Users/marchaut/Documents/myprojects/SOARmaster/SOAR26-1/mri/orig/001.mgz has 2 frames Darwin Marcs-MacBook-Pro.local 13.4.0 Darwin Kernel Version 13.4.0: Sun Aug 17 19:50:11 PDT 2014; root:xnu-2422.115.4~1/RELEASE_X86_64 x86_64 recon-all -s SOAR26-1 exited with ERRORS at Mon Feb 22 11:13:26 EST 2016" I looked through the mailing list and saw that a few other people have had this problem as well, and I tried some of the solutions that were suggested but still have not been able to get past this. I have run the recon-all command on all of the other subjects in our data set, and none of them have this problem. Not sure what is different about this scan. Anyone run into this problem and were able to fix it? Thanks in advance, Marissa

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Re: [Freesurfer] qdec
by levi solomyak 22 Feb '16

22 Feb '16

Hi Douglas, Sure! Below is the terminal outputs when I try and run the command you suggested on the first five subjects. Any help you could provide would be much appreciated! Best, LS $asegstats2table --common-segs --meas volume --tablefile /mnt/engram/projects/IndivRITL/data/leviDiff/Subjects/qdec/stats_tables/aseg.volume.stats.dat --statsfile=aseg.stats --subjects 100307 101006 104820 105115 110411 SUBJECTS_DIR : /projects/IndivRITL/data/leviDiff/Subjects Parsing the .stats files Traceback (most recent call last): File "/Applications/freesurfer/bin/asegstats2table", line 538, in <module> id_name_map, measurelist = parsed.parse(options.meas) File "/Applications/freesurfer/bin/fsutils.py", line 115, in parse On Fri, Feb 19, 2016 at 2:53 PM, levi solomyak <lsolomyak(a)gmail.com> wrote: > Hi Douglas, > > Sure! Below is the terminal outputs when I try and run the command you > suggested on the first five subjects. Any help you could provide would be > much appreciated! > > Best, > LS > > $asegstats2table --common-segs --meas volume --tablefile > /mnt/engram/projects/IndivRITL/data/leviDiff/Subjects/qdec/stats_tables/aseg.volume.stats.dat > --statsfile=aseg.stats --subjects 100307 101006 104820 105115 110411 > SUBJECTS_DIR : /projects/IndivRITL/data/leviDiff/Subjects > Parsing the .stats files > Traceback (most recent call last): > File "/Applications/freesurfer/bin/asegstats2table", line 538, in > <module> > id_name_map, measurelist = parsed.parse(options.meas) > File "/Applications/freesurfer/bin/fsutils.py", line 115, in parse > > On Fri, Feb 19, 2016 at 2:47 PM, levi solomyak <lsolomyak(a)gmail.com> > wrote: > >> Hi Douglas, >> >> Sure! Below is the terminal outputs when I try and run the command you >> suggested on the first five subjects. Any help you could provide would be >> much appreciated! >> >> Best, >> LS >> >> $asegstats2table --common-segs --meas volume --tablefile >> /mnt/engram/projects/IndivRITL/data/leviDiff/Subjects/qdec/stats_tables/aseg.volume.stats.dat >> --statsfile=aseg.stats --subjects 100307 101006 104820 105115 110411 >> SUBJECTS_DIR : /projects/IndivRITL/data/leviDiff/Subjects >> Parsing the .stats files >> Traceback (most recent call last): >> File "/Applications/freesurfer/bin/asegstats2table", line 538, in >> <module> >> id_name_map, measurelist = parsed.parse(options.meas) >> File "/Applications/freesurfer/bin/fsutils.py", line 115, in parse >> self.id_name_map[seg] = strlst[4] # Col 4 is Seg Name >> IndexError: list index out of range >> >> >> >> On Mon, Dec 21, 2015 at 6:13 PM, Douglas N Greve < >> greve(a)nmr.mgh.harvard.edu> wrote: >> >>> Can you run the command below outside of qdec and send us the error it >>> prints to the terminal? >>> >>> asegstats2table --common-segs --meas volume --tablefile >>> >>> /mnt/engram/projects/IndivRITL/data/leviDiff/Subjects/qdec/stats_tables/aseg.volume.stats.dat >>> --statsfile=aseg.stats --subjects 100307 101006 104820 105115 110411 >>> 111312 111413 111716 112819 113215 113619 113922 114419 115320 116524 >>> 117122 117324 118528 135225 135932 150625 150726 151223 151526 170934 >>> 171633 172130 172332 172534 172938 173334 175439 177645 177746 178142 >>> 200109 200614 201111 201414 201818 203418 204016 204521 304020 307127 >>> 308331 310621 316633 329440 365343 366042 377451 380036 385450 386250 >>> 412528 433839 436239 480141 486759 497865 499566 500222 510326 530635 >>> 531536 540436 561242 562446 565452 566454 567052 567961 568963 571548 >>> 580044 580347 581349 583858 586460 594156 598568 599671 >>> >>> >>> >>> On 12/14/2015 02:15 PM, levi solomyak wrote: >>> > Dear experts, >>> > >>> > I've been attempting to generate a stats data table in qdec, but each >>> > time I get a "Index Error: list index is out of range" error. This is >>> > occurring when it is trying to parse the .stats file. >>> > >>> > I've made sure that the files all line up exactly with the qdec table >>> > and that SUBJECTS_DIR is properly sourced so I'm not sure how to fix >>> > this problem. Any help would be greatly appreciated! >>> > >>> > >>> > Here are the details of the errors: >>> > >>> > 1) machine being used: Linux localhost.localdomain >>> > 3.10.0-229.4.2.el7.x86_64 #1 SMP Wed May 13 10:06:09 UTC 2015 x86_64 >>> > x86_64 x86_64 GNU/Linux >>> > 2) Freesurfer version: >>> > freesurfer-Linux-centos6_x86_64-stable-pub-v5.3.0-HCP >>> > 3) Current working directory: >>> /projects/IndivRITL/data/leviDiff/Subjects >>> > 4) which qdec : /usr/local/freesurfer/bin/qdec >>> > 5) After loading the gui, I attempted to generate a qdec stats table. >>> > This is the error that was returned: >>> > >>> > >>> ----------------------------------------------------------------------------------- >>> > asegstats2table --common-segs --meas volume --tablefile >>> > >>> /mnt/engram/projects/IndivRITL/data/leviDiff/Subjects/qdec/stats_tables/aseg.volume.stats.dat >>> > --statsfile=aseg.stats --subjects 100307 101006 104820 105115 110411 >>> > 111312 111413 111716 112819 113215 113619 113922 114419 115320 116524 >>> > 117122 117324 118528 135225 135932 150625 150726 151223 151526 170934 >>> > 171633 172130 172332 172534 172938 173334 175439 177645 177746 178142 >>> > 200109 200614 201111 201414 201818 203418 204016 204521 304020 307127 >>> > 308331 310621 316633 329440 365343 366042 377451 380036 385450 386250 >>> > 412528 433839 436239 480141 486759 497865 499566 500222 510326 530635 >>> > 531536 540436 561242 562446 565452 566454 567052 567961 568963 571548 >>> > 580044 580347 581349 583858 586460 594156 598568 599671 >>> > SUBJECTS_DIR : /mnt/engram/projects/IndivRITL/data/leviDiff/Subjects >>> > Parsing the .stats files >>> > Traceback (most recent call last): >>> > File "/usr/local/freesurfer/bin/asegstats2table", line 538, in >>> <module> >>> > id_name_map, measurelist = parsed.parse(options.meas) >>> > File "/home/usr/local/freesurfer/bin/fsutils.py", line 115, in parse >>> > self.id_name_map[seg] = strlst[4] # Col 4 is Seg Name >>> > IndexError: list index out of range >>> > ERROR: In >>> > >>> /usr/pubsw/packages/KWWidgets/CVS-vtk560/KWWidgets/vtkKWTkUtilities.cxx, >>> > line 230 >>> > vtkKWQdecApp (0x278d8060): >>> > Script: >>> > vtkTemp2 GenerateStatsDataTables >>> > Returned Error on line 1: >>> > Uncaught exception: command failed: asegstats2table --common-segs >>> > --meas volume --tablefile >>> > >>> /mnt/engram/projects/IndivRITL/data/leviDiff/Subjects/qdec/stats_tables/aseg.volume.stats.dat >>> > --statsfile=aseg.stats --subjects 100307 101006 104820 105115 110411 >>> > 111312 111413 111716 112819 113215 113619 113922 114419 115320 116524 >>> > 117122 117324 118528 135225 135932 150625 150726 151223 151526 170934 >>> > 171633 172130 172332 172534 172938 173334 175439 177645 177746 178142 >>> > 200109 200614 201111 201414 201818 203418 204016 204521 304020 307127 >>> > 308331 310621 316633 329440 365343 366042 377451 380036 385450 386250 >>> > 412528 433839 436239 480141 486759 497865 499566 500222 510326 530635 >>> > 531536 540436 561242 562446 565452 566454 567052 567961 568963 571548 >>> > 580044 580347 581349 583858 586460 594156 598568 599671 >>> > >>> > Stack trace: >>> > Uncaught exception: command failed: asegstats2table --common-segs >>> > --meas volume --tablefile >>> > >>> /mnt/engram/projects/IndivRITL/data/leviDiff/Subjects/qdec/stats_tables/aseg.volume.stats.dat >>> > --statsfile=aseg.stats --subjects 100307 101006 104820 105115 110411 >>> > 111312 111413 111716 112819 113215 113619 113922 114419 115320 116524 >>> > 117122 117324 118528 135225 135932 150625 150726 151223 151526 170934 >>> > 171633 172130 172332 172534 172938 173334 175439 177645 177746 178142 >>> > 200109 200614 201111 201414 201818 203418 204016 204521 304020 307127 >>> > 308331 310621 316633 329440 365343 366042 377451 380036 385450 386250 >>> > 412528 433839 436239 480141 486759 497865 499566 500222 510326 530635 >>> > 531536 540436 561242 562446 565452 566454 567052 567961 568963 571548 >>> > 580044 580347 581349 583858 586460 594156 598568 599671 >>> > >>> > while executing >>> > "vtkTemp2 GenerateStatsDataTables" >>> > >>> ------------------------------------------------------------------------------------------------------- >>> > >>> > >>> > >>> > >>> > _______________________________________________ >>> > Freesurfer mailing list >>> > Freesurfer(a)nmr.mgh.harvard.edu >>> > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >>> >>> -- >>> Douglas N. Greve, Ph.D. >>> MGH-NMR Center >>> greve(a)nmr.mgh.harvard.edu >>> Phone Number: 617-724-2358 >>> Fax: 617-726-7422 >>> >>> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting >>> FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 >>> www.nmr.mgh.harvard.edu/facility/filedrop/index.html >>> Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ >>> >>> _______________________________________________ >>> Freesurfer mailing list >>> Freesurfer(a)nmr.mgh.harvard.edu >>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >>> >>> >>> 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 Partners Compliance >>> HelpLine at >>> http://www.partners.org/complianceline . If the e-mail was sent to you >>> in error >>> but does not contain patient information, please contact the sender and >>> properly >>> dispose of the e-mail. >>> >>> >> >> >> >> > > > -- > Levi Solomyak > Cole Neuroscience Laboratory (*colelab.org <http://colelab.org/>*) > Center for Molecular and Behavioral Neuroscience (CMBN) > Rutgers-Newark University > -- Levi Solomyak Cole Neuroscience Laboratory (*colelab.org <http://colelab.org/>*) Center for Molecular and Behavioral Neuroscience (CMBN) Rutgers-Newark University

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Re: [Freesurfer] eTIV question
by Jared Tanner 22 Feb '16

22 Feb '16

My experience with eTIV is that it's great with a perfect Talairach transform but otherwise is less accurate than other measures. Manually fixing the transforms and reprocessing as necessary will result in great eTIVs but requires quite a bit of manual work. What we do instead is just use the brainmask volume (but our data are MRIs of non-demented older adults so there's not typically extensive atrophy). We've found that brainmask has a Dice Similarity Coefficient of 0.95 and an ICC of 0.92 with manually traced intracranial masks (inferior termination on a straight line between the lowest portion of the clivus and occipital bone). eTIV had an ICC of 0.67 with our manual masks (but we didn't fix the transformations). Jared ____ Jared Tanner, Ph.D. Research Assistant Professor Clinical and Health Psychology University of Florida > ---------- Forwarded message ---------- > From: "Harms, Michael" <mharms(a)wustl.edu> > To: "freesurfer(a)nmr.mgh.harvard.edu" <freesurfer(a)nmr.mgh.harvard.edu> > Cc: > Date: Sun, 21 Feb 2016 18:10:12 +0000 > Subject: Re: [Freesurfer] eTIV question > > Hi, > Why not use a measurement of brain size rather than “eTIV”? > > cheers, > -MH > > -- > Michael Harms, Ph.D. > > ----------------------------------------------------------- > Conte Center for the Neuroscience of Mental Disorders > Washington University School of Medicine > Department of Psychiatry, Box 8134 > 660 South Euclid Ave.Tel: 314-747-6173 > St. Louis, MO 63110Email: mharms(a)wustl.edu > >

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Re: [Freesurfer] mri_convert Ubuntu 14.04 LTS not working (neither is freeview) (Z K)
by Veronica.Popescu 22 Feb '16

22 Feb '16

Dear Zeke, This is the output: "Mon Feb 22 18:27:05 CET 2016 /usr/local/freesurfer/subjects/myscan /usr/local/freesurfer/bin/recon-all -s myscan -i myscan.nii.gz subjid myscan setenv SUBJECTS_DIR /usr/local/freesurfer/subjects FREESURFER_HOME /usr/local/freesurfer Actual FREESURFER_HOME /usr/local/freesurfer build-stamp.txt: freesurfer-Linux-centos4-stable-pub-v5.3.0 Linux MSveronica 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux cputime unlimited filesize unlimited datasize unlimited stacksize 8192 kbytes coredumpsize 0 kbytes memoryuse unlimited vmemoryuse unlimited descriptors 1024 memorylocked 64 kbytes maxproc 15308 maxlocks unlimited maxsignal 15308 maxmessage 819200 maxnice 0 maxrtprio 0 maxrttime unlimited total used free shared buffers cached Mem: 3940392 3452568 487824 223760 262988 2343920 -/+ buffers/cache: 845660 3094732 Swap: 2023420 77288 1946132 ######################################## program versions used $Id: recon-all,v 1.379.2.73 2013/05/12 23:15:37 nicks Exp $ $Id: mri_motion_correct.fsl,v 1.14 2011/03/02 20:16:39 nicks Exp $ $Id: talairach_avi,v 1.9 2011/03/02 18:38:06 nicks Exp $ Program nu_correct, built from: Package MNI N3, version 1.10, compiled by nicks@fishie (i686-pc-linux-gnu) on 2010-02-20 at 20:19:13 ####################################### GCADIR /usr/local/freesurfer/average GCA RB_all_2008-03-26.gca GCASkull RB_all_withskull_2008-03-26.gca AvgCurvTif average.curvature.filled.buckner40.tif GCSDIR /usr/local/freesurfer/average GCS curvature.buckner40.filled.desikan_killiany.2010-03-25.gcs ####################################### /usr/local/freesurfer/subjects/myscan mri_convert /usr/local/freesurfer/subjects/myscan.nii.gz /usr/local/freesurfer/subjects/myscan/mri/orig/001.mgz Linux MSveronica 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux recon-all -s myscan exited with ERRORS at Mon Feb 22 18:27:07 CET 2016 To report a problem, see http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting" It creates the directory myscan but the folders myscan/mri/orig and myscan/mri/transforms are empty. Before running I changed the rights -R a+w for /usr/local/freesurfer/subjects. I tried to use mri_convert myscan.nii.gz myscan.mgz and it doesn't do anything, no error message it just skips to a new line. mri_convert -h or mri_convert --help also don't have any output. And recon-all -s bert -autorecon1 gives: "Subject Stamp: freesurfer-Linux-centos4-stable-v5.3.0beta-20130503 Current Stamp: freesurfer-Linux-centos4-stable-pub-v5.3.0 INFO: SUBJECTS_DIR is /usr/local/freesurfer/subjects Actual FREESURFER_HOME /usr/local/freesurfer -rwxrwxrwx 1 root root 472994 Feb 8 16:54 /usr/local/freesurfer/subjects/bert/scripts/recon-all.log Linux MSveronica 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux INFO: current FREESURFER_HOME does not match that of previous processing. Current: /usr/local/freesurfer Previous: /space/freesurfer/centos4.0/stable #-------------------------------------------- #@# MotionCor Mon Feb 22 18:24:35 CET 2016 Found 3 runs /usr/local/freesurfer/subjects/bert/mri/orig/001.mgz /usr/local/freesurfer/subjects/bert/mri/orig/002.mgz /usr/local/freesurfer/subjects/bert/mri/orig/003.mgz Checking for (invalid) multi-frame inputs... ERROR: input(s) cannot have multiple frames! /usr/local/freesurfer/subjects/bert/mri/orig/001.mgz has frames Linux MSveronica 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux recon-all -s bert exited with ERRORS at Mon Feb 22 18:24:35 CET 2016" I tried to use If I try to run: "freeview -v $SUBJECTS_DIR/bert/mri/brainmask.mgz -v $SUBJECTS_DIR/bert/mri/aseg.mgz:colormap=lut:opacity=0.2 -f $SUBJECTS_DIR/bert/surf/lh.white:edgecolor=yellow -f $SUBJECTS_DIR/bert/surf/rh.white:edgecolor=yellow -f $SUBJECTS_DIR/bert/surf/lh.pial:annot=aparc:edgecolor=red -f $SUBJECTS_DIR/bert/surf/rh.pial:annot=aparc:edgecolor=red" as indicated on the website nothing happens, no error message. -----Origineel Bericht----- > Van: freesurfer-request(a)nmr.mgh.harvard.edu > Aan: freesurfer(a)nmr.mgh.harvard.edu > Datum: 10-02-2016 17:28 > Onderwerp: Freesurfer Digest, Vol 144, Issue 14 > > Send Freesurfer mailing list submissions to > freesurfer(a)nmr.mgh.harvard.edu > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > or, via email, send a message with subject or body 'help' to > freesurfer-request(a)nmr.mgh.harvard.edu > > You can reach the person managing the list at > freesurfer-owner(a)nmr.mgh.harvard.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Freesurfer digest..." > > > Today's Topics: > > 2. Re: mri_convert Ubuntu 14.04 LTS not working (neither is > freeview) (Z K) > > > > ---------------------------------------------------------------------- > > > > Message: 2 > Date: Tue, 9 Feb 2016 12:55:18 -0500 > From: Z K <zkaufman(a)nmr.mgh.harvard.edu> > Subject: Re: [Freesurfer] mri_convert Ubuntu 14.04 LTS not working > (neither is freeview) > To: Freesurfer support list <freesurfer(a)nmr.mgh.harvard.edu> > Message-ID: <56BA2806.6060106(a)nmr.mgh.harvard.edu> > Content-Type: text/plain; charset=windows-1252; format=flowed > > I just did a tst of mri_convert of freesurfer v5.3 on my Ubuntu 14.04 > machine and it ran successfully. Freeview also ran (after typing the > libjpeg symlink command). > > Can you provide any error or terminal output information? > > -Zeke > > On 02/08/2016 12:41 PM, Veronica.Popescu wrote: > > Dear all, > > I have just installed FreeSurfer 5.3.0. on Ubuntu 14.04 LTS (64-bit). > > The mri_convert doesn't work with no error message. which mri_convert > > gives /usr/local/freesurfer/bin/mri_convert. Of course neither does > > recon-all (which exits with errors with no error message in the log). > > I made sure all the paths are 777. I did the recommended "sudo ln -s > > libjpeg.so.8 libjpeg.so.62 sudo ln -s libtiff.so.4 libtiff.so.3" in > > x86_64-linux-gnu. > > The same problem with freeview, nothing happens. > > Thank you in advance! > > Veronica > > > > > > End of Freesurfer Digest, Vol 144, Issue 14 > ******************************************* -- Revalidatie & MS Centrum VZW | Overpelt Boemerangstraat 2 B-3900 Overpelt Tel.: 011 / 809 100 Fax: 011 / 66 28 86 http://www.msreva.be info(a)msreva.be Disclaimer: http://www.msreva.be/default.aspx?main

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mris_make_surfaces dimensions error
by Corinna Bauer 22 Feb '16

22 Feb '16

Hello all, I am attempting to reshape the pial surfaces to fill the new boundaries in my edited ribbon.mgz file. I am using mris_make_surfaces with the -cover_seg flag but keep getting this error: ERROR: mris_make_surfaces-MRIcheckVolDims: volume1 height=256 != volume2 height=1. Any suggestions? Thanks! Corinna FYI: I am trying to reshape the pial boundary based off this previous thread. https://mail.nmr.mgh.harvard.edu/pipermail///freesurfer/2014-November/04134…

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Variations in results between qdec GUI and Command Line
by Vikas Bandalli 22 Feb '16

22 Feb '16

Dear Freesurfer Team, I am facing a discrepancy in the result when I run a Monte Carlo Z simulation. I have a group with 3 levels(normal,Non-psychotic and psychotic).I tried running an analysis to c the variation in cortical thickness between the same groups in the QDEC GUI,but since iit was impossible to do so and reading a few similar instances on the Freesurfer mailing list,I decided to run the analysis in Command line using mri_glmfit after mris_preproc.The detailed instructions I followed was from the below mentioned page https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/GroupAnalysis However,Published literature with similar cases has ran the simulation using pairing method i.e, lets say in this case between normal-psychotic,normal-non-psychotic and psychotic-non-psychotic. I have done both the methods to compare,However,I have the opposite results and discrepancy in results. (If there was a negative correlation between normal-psychotic in GUI, there was a positive correlation between normal-psychotic in the Command line analysis). Kindly note that the simulation was run for MC-z 1.3(0.05) in both GUI and Command line. Please help me with this issue and which is the TRUE result. -- Vikas B. R. Medical student Bangalore Medical College and Research Institute (BMCRI), Bangalore,India, Ph : +918904286825

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