Freesurfer

freesurfer@nmr.mgh.harvard.edu

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30097 discussions

Re: [Freesurfer] AC/PC positions and other questions
by François Tadel 15 Jul '13

15 Jul '13

Hi Doug, Thanks for the quick reply. A few more details: > What do you mean by "position" (AC/PC)? Do you mean the col, row, slice? We don't find the actual AC or PC. Yes: 3D coordinates in any identified coordinate systems. For now, we are asking our users to mark those points manually. It would be great to skip that step and have those points placed automatically. We could get the AC point from the linear Talairach transform. To transform the TalXYZ=(0,0,0) for AC to the coordinate system of the surfaces (for instance: lh.pial), should I take the translation found in the file "talairach.xfm" (4th column) ? > What file should I read to get the labels corresponding to the aseg.mgz file? > $FREESURFER_HOME/ASegStatsLUT.txt Is there a file in the segmentation folder I could read it from? We are typically using the results of freesurfer segmentation on computers where FS is not installed... > Is there an easy way to generate surfaces for all the regions defined in aseg.mgz? Ok, mri_tesselate + mris_smooth work well for what I'm doing. Thanks Francois -- François Tadel, MSc MEG / McConnell Brain Imaging Center / MNI / McGill University 3801 rue University, Montreal, QC H3A2B4, Canada

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using two vs one scan(s) for optimal surface reconstruction
by Marie Schaer 15 Jul '13

15 Jul '13

Hi all, Small question related to the number of structural runs required for optimal results: I was wondering whether someone tested the assumption that using two scans rather than one improves the segmentation process and the cortical surface reconstruction / thickness estimation? I've not been able to find any publication on it, but maybe my search was not extensive enough. Thanks a lot for your answer, Marie

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Re: [Freesurfer] application of mri_cvs_register question
by Anastasia Yendiki 15 Jul '13

15 Jul '13

Got it. Can you send me a listing of the contents of the xfms/ directory? Conversions b/w formats can be done with tkregister2, but the .dat file should normally be there since it's the default format for bbregister. On Mon, 15 Jul 2013, Hoptman, Matthew wrote: > Right, that's been my problem :( Maybe something went wrong, but I didn't see any problem in the log files. Actually, the command I showed below had a typo (I used --mat rather than --reg to get that error). Is there a way to convert *.mat to *.dat? > > -----Original Message----- > From: Anastasia Yendiki [mailto:ayendiki@nmr.mgh.harvard.edu] > Sent: Monday, July 15, 2013 2:44 PM > To: Hoptman, Matthew > Cc: freesurfer(a)nmr.mgh.harvard.edu > Subject: RE: [Freesurfer] application of mri_cvs_register question > > > Hi Matt - The --reg option expects a .dat file. There should be one > produced by bbregister in the xfms/ directory? > > a.y > > On Mon, 15 Jul 2013, Hoptman, Matthew wrote: > >> Hi Anastasia, >> Yes, that was my problem. I think I need to use >> mri_vol2vol --targ ../../../cvs_avg35_inMNI152/mri/norm.mgz --m3z >> ../../cvs/cvs_avg35_inMNI152/final_CVSmorph_tocvs_avg35_inMNI152.m3z >> --noDefM3zPath --reg diff2anat.bbr.mat --mov ../dtifit_FA.nii.gz --o >> diffvol2CVS.nii.gz --no-save-reg >> >> >> I now get: >> Using the m3z file as it is; no assumed location. >> regio_read_register(): Success >> Error reading R[3][0] from diff2anat.bbr.mat >> >> Matrix from regfile: >> -0.001 0.972 -0.234 -3.311; >> -0.001 0.234 0.972 69.949; >> 0.000 0.000 0.000 1.000; >> 0.000 0.000 0.000 0.000; >> >> I was stuck at that point. Lilla Zollei told me she'd look into it, but maybe you've communicated with her? >> Thanks >> Matt >> >> -----Original Message----- >> From: Anastasia Yendiki [mailto:ayendiki@nmr.mgh.harvard.edu] >> Sent: Monday, July 15, 2013 2:30 PM >> To: Hoptman, Matthew >> Cc: freesurfer(a)nmr.mgh.harvard.edu >> Subject: RE: [Freesurfer] application of mri_cvs_register question >> >> >> Hi Matt - The CVS morph under xfms/cvs/ maps the individual anatomical to >> the CVS template. To map from individual diffusion to the CVS template, >> you'd have to first use diffusion-to-anatomical affine transform file >> under xfms/. >> >> Hope this helps, >> a.y >> >> On Mon, 15 Jul 2013, Hoptman, Matthew wrote: >> >>> Hi Anastasia, >>> Not really, what I now have is: >>> <subject>/dmri/xfms/cvs >>> Within cvs, there are anatomical files that are registered to the CVS template, as below, but what I DON'T have is the application of these transforms to the DTI data. That's what I'm trying to puzzle out. >>> >>> The files in <subject>/dmri/xfms/cvs are: >>> c159001_to_cvs_avg35_inMNI152.mri_cvs_register.1307051306.log >>> c159001_to_cvs_avg35_inMNI152.mri_cvs_register.1307051310.log >>> final_CVSmorphed_tocvs_avg35_inMNI152_aseg.mgz >>> final_CVSmorphed_tocvs_avg35_inMNI152_norm.mgz >>> final_CVSmorph_tocvs_avg35_inMNI152.m3z >>> lh.dbg_surf.pial >>> lh.dbg_surf.white >>> lh.resample.aparc.annot >>> lh.resample.pial >>> lh.resample.white >>> nlalign-afteraseg-norm.mgz >>> nlalign-aseg.mgz >>> rh.dbg_surf.pial >>> rh.dbg_surf.white >>> rh.resample.aparc.annot >>> rh.resample.pial >>> rh.resample.white >>> summary.c159001_to_cvs_avg35_inMNI152.mri_cvs_register.1307051306.log >>> summary.c159001_to_cvs_avg35_inMNI152.mri_cvs_register.1307051310.log >>> transform.txt >>> >>> >>> -----Original Message----- >>> From: Anastasia Yendiki [mailto:ayendiki@nmr.mgh.harvard.edu] >>> Sent: Monday, July 15, 2013 12:19 PM >>> To: Hoptman, Matthew >>> Cc: freesurfer(a)nmr.mgh.harvard.edu >>> Subject: Re: [Freesurfer] application of mri_cvs_register question >>> >>> >>> Hi Matt - For how to tell tracula to use CVS registration, see "Specify >>> the inter-subject registration method" here: >>> http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/Tracula >>> >>> Does this answer your question? >>> >>> a.y >>> >>> On Mon, 8 Jul 2013, Hoptman, Matthew wrote: >>> >>>> >>>> Hi all, >>>> >>>> I see how to apply mri_vol2vol to DTI data from dt_recon, but I’m not clear on how to do so to DTI data processed in Tracula. The command in the “Multimodal >>>> integration and inter-subject registration” tutorial is: >>>> >>>> mri_vol2vol --targ templateid --m3z morph.m3z --noDefM3zPath --reg 2anat.register.dat --mov diffvol --o diffvol2CVS --no-save-reg >>>> >>>> >>>> >>>> But in Tracula, there are no “register.dat” files, or indeed no *.dat files. Is there a way to convert one of the *.mat files in the dmri/xfms directory to a >>>> *.dat file? Also, given that I think Tracula and dt_recon use different transformation algorithms, which Tracula transform should I choose? >>>> >>>> >>>> >>>> Thanks, >>>> >>>> Matt >>>> >>>> >>>> >>>> Matthew J. Hoptman, PhD >>>> Research Scientist V >>>> Nathan S. Kline Institute for Psychiatric Research >>>> >>>> Research Associate Professor in Psychiatry >>>> NYU School of Medicine >>>> >>>> >>>> >>>> IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privileged or >>>> otherwise protected by law. If you received this >>>> e-mail in error or from someone who was not authorized to send it to you, you are strictly prohibited from reviewing, using, disseminating, distributing or >>>> copying the e-mail. >>>> >>>> PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR SYSTEM. Thank you for your cooperation. >>>> >>>> >>>> >>>> _________________________________________________________________________________________________________________________________________________________________ >>>> Conserve Resources. Print only when necessary. >>>> >>>> IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privilegedor >>>> otherwise protected by law. If you received this e-mail in error or from someone who is not authorized to send it to you, you are strictly prohibited from >>>> reviewing, using, disseminating, distributing or copying the e-mail. PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR >>>> SYSTEM. Thank you for your cooperation. >>>> >>>> IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privileged or >>>> otherwise protected by law. If you received this e-mail in error or from someone who is not authorized to send it to you, you are strictly prohibited from >>>> reviewing, using, disseminating, distributing or copying the e-mail. PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR >>>> SYSTEM. Thank you for your cooperation. >>>> >>> >>> >>> 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. >>> IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privileged or otherwise protected by law. If you received this e-mail in error or from someone who is not authorized to send it to you, you are strictly prohibited from reviewing, using, disseminating, distributing or copying the e-mail. PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR SYSTEM. Thank you for your cooperation. >>> >>> >>> >> IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privileged or otherwise protected by law. If you received this e-mail in error or from someone who is not authorized to send it to you, you are strictly prohibited from reviewing, using, disseminating, distributing or copying the e-mail. PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR SYSTEM. Thank you for your cooperation. >> >> >> > IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privileged or otherwise protected by law. If you received this e-mail in error or from someone who is not authorized to send it to you, you are strictly prohibited from reviewing, using, disseminating, distributing or copying the e-mail. PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR SYSTEM. Thank you for your cooperation. > > >

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FSFAST funcroi-sess problem
by Joseph Dien 15 Jul '13

15 Jul '13

I'm using Freesurfer 5.3.0 (well, actually I ran the original analyses with 5.2.0 and then am running this ROI follow-up with 5.2.0, could that be a problem? From the release notes, it didn't look like it would be an issue) Anyway, I've run the following set of commands: funcroi-config -roi /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/roi.AR-v-CS_HC.HC.th2.neg.cluster1.roicfg -annot /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot cluster-001 -analysis CPA.sm05.lh funcroi-sess -roi /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/roi.AR-v-CS_HC.HC.th2.neg.cluster1.roicfg -s CPA003 -d . I get the following output. When I checked the results with: tksurfer fsaverage lh inflated -overlay roi.AR-v-CS_HC.HC.th2.neg.cluster1.nii.gz -fthresh .5 sure enough, it didn't look right. Instead of the cluster, I got speckles all over the surface. I used the Matlab command: [vertex_coords, faces] = read_surf('lh.white'); and found sure enough that the size of the vertex array was only 143827 whereas mri_info indicates that the ocn file has 163842 Any suggestions what I might be doing wrong? Thanks! Joe ------------------------------------------- /Volumes/Data/CP1/fsfast/CPA003 Fri Jul 12 18:23:28 EDT 2013 mri_annotation2label --subject CPA003 --hemi lh --annotation /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot --outdir /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/label subject = CPA003 annotation = /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot hemi = lh outdir = /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/label surface = white Reading surface /Volumes/Data/CP1/freesurfer/CPA003/surf/lh.white Loading annotations from /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 143827 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 143828 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 143829 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 143830 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 143831 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 143832 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 143833 i=00000000, in_array_size=143827 … MRISreadAnnotationIntoArray: vertex index out of range: 163838 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 163839 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 163840 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot MRISreadAnnotationIntoArray: vertex index out of range: 163841 i=00000000, in_array_size=143827 annot file: /Volumes/Data/CP1/fsfast/secondLevel/CPA.sm05.lh/AR-v-CS/AR-v-CS_HC.wls/HC/cache.th20.neg.sig.ocn.annot reading colortable from annotation file... colortable with 3 entries read (originally none) Seg base 0 max index = 2 1 952 /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/label/lh.cluster-001.label 2 532 /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/label/lh.cluster2.label mri_label2label --hemi lh --srclabel /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/label/lh.cluster-001.label --srcsubject CPA003 --trglabel /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/target.label --trgsubject fsaverage --regmethod surface srclabel = /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/label/lh.cluster-001.label srcsubject = CPA003 trgsubject = fsaverage trglabel = /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/target.label regmethod = surface srchemi = lh trghemi = lh trgsurface = white srcsurfreg = sphere.reg trgsurfreg = sphere.reg usehash = 1 Use ProjAbs = 0, 0 Use ProjFrac = 0, 0 DoPaint 0 SUBJECTS_DIR /Volumes/Data/CP1/freesurfer FREESURFER_HOME /Applications/freesurfer Loading source label. Found 952 points in source label. Starting surface-based mapping Reading source registration /Volumes/Data/CP1/freesurfer/CPA003/surf/lh.sphere.reg Rescaling ... original radius = 100 Reading target surface /Volumes/Data/CP1/freesurfer/fsaverage/surf/lh.white Reading target registration /Volumes/Data/CP1/freesurfer/fsaverage/surf/lh.sphere.reg Rescaling ... original radius = 100 Building target registration hash (res=16). Building source registration hash (res=16). INFO: found 952 nlabel points Performing mapping from target back to the source label 163842 Number of reverse mapping hits = 415 Checking for and removing duplicates Writing label file /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/target.label 1367 mri_label2label: Done mri_label2label --hemi lh --srclabel /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/target.label --outmask /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/roi.AR-v-CS_HC.HC.th2.neg.cluster1.nii.gz --regmethod surface --trglabel /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/junk.label --s fsaverage srclabel = /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/target.label srcsubject = fsaverage trgsubject = fsaverage trglabel = /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/junk.label regmethod = surface srchemi = lh trghemi = lh trgsurface = white srcsurfreg = sphere.reg trgsurfreg = sphere.reg usehash = 1 Use ProjAbs = 0, 0 Use ProjFrac = 0, 0 DoPaint 0 SUBJECTS_DIR /Volumes/Data/CP1/freesurfer FREESURFER_HOME /Applications/freesurfer Loading source label. Found 1311 points in source label. Starting surface-based mapping Reading source registration /Volumes/Data/CP1/freesurfer/fsaverage/surf/lh.sphere.reg Rescaling ... original radius = 100 Reading target surface /Volumes/Data/CP1/freesurfer/fsaverage/surf/lh.white Reading target registration /Volumes/Data/CP1/freesurfer/fsaverage/surf/lh.sphere.reg Rescaling ... original radius = 100 Building target registration hash (res=16). Building source registration hash (res=16). INFO: found 1311 nlabel points Performing mapping from target back to the source label 163842 Number of reverse mapping hits = 0 Checking for and removing duplicates Creating output /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/roi.AR-v-CS_HC.HC.th2.neg.cluster1.nii.gz Writing label file /Volumes/Data/CP1/fsfast/CPA003/bold/CPA.sm05.lh/tmp.funcroi-sess.roi.AR-v-CS_HC.HC.th2.neg.cluster1/junk.label 1311 mri_label2label: Done Ended at Fri Jul 12 18:23:48 EDT 2013 funcroi-sess completed -------------------------------------------------------------------------------- Joseph Dien, Senior Research Scientist University of Maryland E-mail: jdien07(a)mac.com Phone: 202-297-8117 http://joedien.com//

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Re: [Freesurfer] application of mri_cvs_register question
by Anastasia Yendiki 15 Jul '13

15 Jul '13

Hi Matt - The CVS morph under xfms/cvs/ maps the individual anatomical to the CVS template. To map from individual diffusion to the CVS template, you'd have to first use diffusion-to-anatomical affine transform file under xfms/. Hope this helps, a.y On Mon, 15 Jul 2013, Hoptman, Matthew wrote: > Hi Anastasia, > Not really, what I now have is: > <subject>/dmri/xfms/cvs > Within cvs, there are anatomical files that are registered to the CVS template, as below, but what I DON'T have is the application of these transforms to the DTI data. That's what I'm trying to puzzle out. > > The files in <subject>/dmri/xfms/cvs are: > c159001_to_cvs_avg35_inMNI152.mri_cvs_register.1307051306.log > c159001_to_cvs_avg35_inMNI152.mri_cvs_register.1307051310.log > final_CVSmorphed_tocvs_avg35_inMNI152_aseg.mgz > final_CVSmorphed_tocvs_avg35_inMNI152_norm.mgz > final_CVSmorph_tocvs_avg35_inMNI152.m3z > lh.dbg_surf.pial > lh.dbg_surf.white > lh.resample.aparc.annot > lh.resample.pial > lh.resample.white > nlalign-afteraseg-norm.mgz > nlalign-aseg.mgz > rh.dbg_surf.pial > rh.dbg_surf.white > rh.resample.aparc.annot > rh.resample.pial > rh.resample.white > summary.c159001_to_cvs_avg35_inMNI152.mri_cvs_register.1307051306.log > summary.c159001_to_cvs_avg35_inMNI152.mri_cvs_register.1307051310.log > transform.txt > > > -----Original Message----- > From: Anastasia Yendiki [mailto:ayendiki@nmr.mgh.harvard.edu] > Sent: Monday, July 15, 2013 12:19 PM > To: Hoptman, Matthew > Cc: freesurfer(a)nmr.mgh.harvard.edu > Subject: Re: [Freesurfer] application of mri_cvs_register question > > > Hi Matt - For how to tell tracula to use CVS registration, see "Specify > the inter-subject registration method" here: > http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/Tracula > > Does this answer your question? > > a.y > > On Mon, 8 Jul 2013, Hoptman, Matthew wrote: > >> >> Hi all, >> >> I see how to apply mri_vol2vol to DTI data from dt_recon, but I’m not clear on how to do so to DTI data processed in Tracula. The command in the “Multimodal >> integration and inter-subject registration” tutorial is: >> >> mri_vol2vol --targ templateid --m3z morph.m3z --noDefM3zPath --reg 2anat.register.dat --mov diffvol --o diffvol2CVS --no-save-reg >> >> >> >> But in Tracula, there are no “register.dat” files, or indeed no *.dat files. Is there a way to convert one of the *.mat files in the dmri/xfms directory to a >> *.dat file? Also, given that I think Tracula and dt_recon use different transformation algorithms, which Tracula transform should I choose? >> >> >> >> Thanks, >> >> Matt >> >> >> >> Matthew J. Hoptman, PhD >> Research Scientist V >> Nathan S. Kline Institute for Psychiatric Research >> >> Research Associate Professor in Psychiatry >> NYU School of Medicine >> >> >> >> IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privileged or >> otherwise protected by law. If you received this >> e-mail in error or from someone who was not authorized to send it to you, you are strictly prohibited from reviewing, using, disseminating, distributing or >> copying the e-mail. >> >> PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR SYSTEM. Thank you for your cooperation. >> >> >> >> _________________________________________________________________________________________________________________________________________________________________ >> Conserve Resources. Print only when necessary. >> >> IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privilegedor >> otherwise protected by law. If you received this e-mail in error or from someone who is not authorized to send it to you, you are strictly prohibited from >> reviewing, using, disseminating, distributing or copying the e-mail. PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR >> SYSTEM. Thank you for your cooperation. >> >> IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privileged or >> otherwise protected by law. If you received this e-mail in error or from someone who is not authorized to send it to you, you are strictly prohibited from >> reviewing, using, disseminating, distributing or copying the e-mail. PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR >> SYSTEM. Thank you for your cooperation. >> > > > 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. > IMPORTANT NOTICE: This e-mail is meant only for the use of the intended recipient. It may contain confidential information which is legally privileged or otherwise protected by law. If you received this e-mail in error or from someone who is not authorized to send it to you, you are strictly prohibited from reviewing, using, disseminating, distributing or copying the e-mail. PLEASE NOTIFY US IMMEDIATELY OF THE ERROR BY RETURN E-MAIL AND DELETE THIS MESSAGE FROM YOUR SYSTEM. Thank you for your cooperation. > > >

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pathstats.byvoxel.txt
by Susan Kuo 15 Jul '13

15 Jul '13

Hi Anastasia, I believe the issue I had with the pathstats.byvoxel.txt not displaying the last four values (AD_Avg RD_Avg MD_Avg FA_Avg ) is owing to the fact that trac-all was run with FREESURFER 5.1. I believe that FREESURFER 5.2 may be needed to generate path.pd.trk, and from that, the above values are derived. Is this correct? Thank you again, and have a good day! -- Susie Kuo Mediocrity knows nothing higher than itself, but talent instantly recognizes genius. - Sir Arthur Conan Doyle,* Sherlock Holmes- Valley of Fear*

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Freesurfer for animal data
by Qasim Bukhari 15 Jul '13

15 Jul '13

Dear all, I attended the Seattle course a couple of weeks ago. Actually I m using mice data in my analysis, and I was wondering if I can use freesurfer for that as well ?I understand there is not so much sulci and gyria problem in mice data as in human, however a flattened surface registration and analysis might still be interesting to see. Is it possible at all to do that ? Thanks a lot and best,Qasim Qasim BukhariResearch Assistant and Doctoral CandidateInstitute for Biomedical EngineeringETH and University ZurichWolfgang-Pauli-Strasse 27, HIT E22webpages: MR-pagehttp://www.biomed.ee.ethz.ch/people/sybukhar

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Re: [Freesurfer] FreeSurfer: plot activation foci
by Frédéric Briend 15 Jul '13

15 Jul '13

Dear FreeSurfer team, Firstall, thanks a lot to your great contribution in the neuroscientific and the free software world. I would like to know if is it possible to make a plot activation foci (i.e. example by PySurfer: http://pysurfer.github.io/auto_examples/plot_foci.html) by FreeSurfer directly, and how can it be done? Sincerly, Frédéric Briend CNRS, Archives Husserl Ecole Normale Supérieure, Paris, France

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Generating a fsgd file for regression analyses
by Avram Holmes 15 Jul '13

15 Jul '13

Freesurfer et al., I'd like to try out some simple cortical thickness regression analysis in mri_glmfit. These would be analyses of one continuous score (e.g., Temperament) and several continuous nuisance variables (e.g., Age, IQ, Site, etc). However, before getting started I wanted to run my fsgd and contrast files by the mailing list to make sure I am entering things correctly. If any freesurfer pros have a free moment I've love to hear if I am on the right track. My fsgd file looks like the following: GroupDescriptorFile 1 Title Temp MeasurementName thickness Class Main Variables Temperament Age Scanner Console IQ Input Subj1 Main -2.65 22 3.00 4.00 103.0 Input Subj 2 Main -2.24 24 3.00 3.00 109.0 Input Subj 3 Main -1.82 20 1.00 4.00 121.0 Input Subj 4 Main -1.79 19 3.00 3.00 113.5 Input Subj 5 Main -1.77 19 1.00 3.00 101. 6 .... My contrast1.mat file is: 0 1 0 0 0 0 It is my hope that when I call: mri_glmfit --fsgd GLMFIT/fsgd.txt --y GLMFIT/lh.TEMP.mgh --C GLMFIT/c.txt --surf fsaverage lh --cortex --glmdir GLMFIT/lh.TEMP.output I am prepping to run a regression looking at the relationship between Temperament and cortical thickness, partialing out age, scanner, console, and IQ. Thanks in advance for any help you can offer, Avram -- Avram Holmes PhD Instructor in Psychiatry, Harvard Medical School Assistant in Research, Massachusetts General Hospital

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talairach and MNI305 Atlas
by Mark Plantz 15 Jul '13

15 Jul '13

Hello freesurfers, I am currently attempting to create a normalized .mgz file from an input brain using mri_ca_normalize. Ultimately, I will use the norm.mgz file to create a .gca atlas for infant MRI's. Currently, I have three of the four required arguments. I am lacking the talairach.lta file. In order to obtain this file, I must run recon-all. However, I do not wish to run recon-all until I have obtained the necessary .gca atlas described above. Is there possibly some sort of alternative iterative method to create the talairach transform? If so, does it require a different atlas than the MNI305 atlas? Thanks for the help! -Mark

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