Re: [Freesurfer] About left-right hemisphere interpretations
Hi Francisco, you are *much* better off avoiding going through analyze. Once you do that all bets are off. Can you reprocess directly from the dicoms and see if the left/right issue goes away? cheers, Bruce On Thu, 12 Feb 2009, Francisco Robles wrote: Hello free Surfer communities, I'm Francisco Robles from the Instituto Nacional de Neurología y Neurocirugía in México City and I habe a serious boubt about Free Surfer Analysis, is a basic one son I am kind of embarrased to ask it but is reay important. I really do not know if left hemisphere activation is the left one and right is really the right activation one in FS-FAST. I got my images from a GE MRI in dicom in a radiological view (left is right and viceversa) and converted it to analyze in MRI-Converter. Then I gave the analyze images the hole FreeSurfer Processing with strcutural and the same for FS-FAST. I never changed the images, so I guess left stands as right and right stands as left except if FS-FAST knows it was a radiological view and changed it. My doubt comes now because the regions significantly activated according to FS-FAST seem to contradict what I expected. Thank you all in advance and thanks for putting this invaluable instrument for free and the techinical support also. _ Sabes que son imágenes dinámicas en Messenger? Descúbrelo. http://download.live.com/messenger___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] still exiting with errors
what files are in [subject path]/mri/*aseg*.mgz? On Fri, 13 Feb 2009, Dankner, Nathan (NIH/NIMH) [F] wrote: Sorry to post this again, but I am still having issues with surfaces exiting with errors. These are the two outputs that I have gotten: MRI_fill: could not read segmentation from aseg.auto_noCC.mgz reading segmented volume aseg.auto_noCCseg.mgz... ERROR: cannot find [subject path]/aseg.auto_noCCseg.mgz No such file or directory and ERROR: cannot find [subject path]/mri/aseg.mgz Mr. Schmansky indicated that this may be due to 2 different versions being used. I have been running recon-all on version 4.1.0 on a 64 bit linux machine, and editing on the same version but on a mac. Also, I attempted to use the -clean-aseg command as directed, but this doesn't seem to have fixed the problem. I'm currently in the process of updating both machines to version 4.2.0, so I don't know how this will affect things. Any suggestions? Thanks in advance, Nathan ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] still exiting with errors
Nathan, Can you send me the recon-all.log file for that subject? Its found in the /scripts dir. Nick On Fri, 2009-02-13 at 15:15 -0500, Dankner, Nathan (NIH/NIMH) [F] wrote: > Sorry to post this again, but I am still having issues with surfaces exiting > with errors. These are the two outputs that I have gotten: > > MRI_fill: could not read segmentation from aseg.auto_noCC.mgz > reading segmented volume aseg.auto_noCCseg.mgz... > ERROR: cannot find [subject path]/aseg.auto_noCCseg.mgz > No such file or directory > > and > > ERROR: cannot find [subject path]/mri/aseg.mgz > > Mr. Schmansky indicated that this may be due to 2 different versions being > used. I have been running recon-all on version 4.1.0 on a 64 bit linux > machine, and editing on the same version but on a mac. Also, I attempted to > use the -clean-aseg command as directed, but this doesn't seem to have fixed > the problem. I'm currently in the process of updating both machines to > version 4.2.0, so I don't know how this will affect things. Any suggestions? > Thanks in advance, > > Nathan > > ___ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
[Freesurfer] still exiting with errors
Sorry to post this again, but I am still having issues with surfaces exiting with errors. These are the two outputs that I have gotten: MRI_fill: could not read segmentation from aseg.auto_noCC.mgz reading segmented volume aseg.auto_noCCseg.mgz... ERROR: cannot find [subject path]/aseg.auto_noCCseg.mgz No such file or directory and ERROR: cannot find [subject path]/mri/aseg.mgz Mr. Schmansky indicated that this may be due to 2 different versions being used. I have been running recon-all on version 4.1.0 on a 64 bit linux machine, and editing on the same version but on a mac. Also, I attempted to use the -clean-aseg command as directed, but this doesn't seem to have fixed the problem. I'm currently in the process of updating both machines to version 4.2.0, so I don't know how this will affect things. Any suggestions? Thanks in advance, Nathan ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] (no subject)
Hi Corey, if the talairach transform has been computed (as it is in recon-all), then loading one of the standard anatomicals will bring it up. Something like: tkmedit norm.mgz lh.pial -aux ct.anat.nii where is the name you gave to recon-all . cheers, Bruce On Fri, 13 Feb 2009, Keller, Corey J. wrote: Hi Freesurfers, We have an MRI coregistered with a CT scan using spmregister. I have converted the CT to the anatomical volume using mri_vol2vol. We are then trying to view the anatomical ct in tkmedit and output talairach coordinates but as of now can only see RAS coordinates. Is there a way to either view the talairach coordinates or to transform the RAS to talairach coordinates? The former would be ideal. tkmedit -SUBJECT ct.anat.nii lh.pial Thanks. Best, Corey ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] (no subject)
you have to give it the actual name of the subject (it has to have been analyzed in freesurfer) Keller, Corey J. wrote: Hi Freesurfers, We have an MRI coregistered with a CT scan using spmregister. I have converted the CT to the anatomical volume using mri_vol2vol. We are then trying to view the anatomical ct in tkmedit and output talairach coordinates but as of now can only see RAS coordinates. Is there a way to either view the talairach coordinates or to transform the RAS to talairach coordinates? The former would be ideal. tkmedit -SUBJECT ct.anat.nii lh.pial Thanks. Best, Corey ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
[Freesurfer] (no subject)
Hi Freesurfers, We have an MRI coregistered with a CT scan using spmregister. I have converted the CT to the anatomical volume using mri_vol2vol. We are then trying to view the anatomical ct in tkmedit and output talairach coordinates but as of now can only see RAS coordinates. Is there a way to either view the talairach coordinates or to transform the RAS to talairach coordinates? The former would be ideal. tkmedit -SUBJECT ct.anat.nii lh.pial Thanks. Best, Corey ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] new eTIV calculation
Chris, talairach_avi is a wrapper script around the registration tools created by Avi Snyder of Washington University, namely the tool imgreg_4dfp, which is the heart of talairach_avi. The wrapper script handles all the conversions (4dfp,t4 to mgz, concluding with the output of the talairach.xfm file). talairach_avi is a text readable file if you are curious as to what it is doing, and examples of usage of imgreg_4dfp. I do not know the different mode options to those t4 utilities, other than they are for specifying the characteristics of the images being registered. Nick On Fri, 2009-02-13 at 12:17 -0600, bell0...@umn.edu wrote: > Nick, > > Just a clarification question. I read the wiki regarding the new eTIV and > it says that the registration to > $FREESURFER_HOME/average/711-2C_as_mni_average_305.4dfp.img is done with > talairach_avi as opposed to imgreg_4dfp. I am guessing imgreg_4dfp is > correct because the template has 4dfp right in its name. Also, I have not > used imgreg_4dfp before, and looking at its options I was curious what a > t4file and mode were; two of its listed options. Does this command generate > a .xfm file? Thanks. > > Chris > > > ___ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] new eTIV calculation
Nick, Just a clarification question. I read the wiki regarding the new eTIV and it says that the registration to $FREESURFER_HOME/average/711-2C_as_mni_average_305.4dfp.img is done with talairach_avi as opposed to imgreg_4dfp. I am guessing imgreg_4dfp is correct because the template has 4dfp right in its name. Also, I have not used imgreg_4dfp before, and looking at its options I was curious what a t4file and mode were; two of its listed options. Does this command generate a .xfm file? Thanks. Chris ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] Qdec question
hi Dev, You might have wrong SUBJECTS_DIR, check it using echo $SUBJECTS_DIR > Hi, > I have been running into an error while using Qdec. > *Error in Analyze: Couldn't open file > <$SUBJECT_DIR>//surf/lh.thickness.fwhm10.fsaverage.mgh* > > I checked and the file is there in that folder. I know this file is > created > when recon-all is run with -qcache option. I have run that twice and it > still gives me the same error. What could be going wrong here and how can > I > fix it? > > Thanks, > Dev > ___ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
[Freesurfer] Qdec question
Hi, I have been running into an error while using Qdec. *Error in Analyze: Couldn't open file <$SUBJECT_DIR>//surf/lh.thickness.fwhm10.fsaverage.mgh* I checked and the file is there in that folder. I know this file is created when recon-all is run with -qcache option. I have run that twice and it still gives me the same error. What could be going wrong here and how can I fix it? Thanks, Dev ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] Cannot allocate memory
Juergen, Are you running v4.2.0 of linux centos 32b, or asking if this problem was fixed in that version? ie., which version are you running now? I'm not aware of this problem currently (that is, I too thought it was fixed some time ago). Nick On Fri, 2009-02-13 at 16:22 +0100, J=?ISO-8859-1?B?/A==?=rgen H=? ISO-8859-1?B?5A==?=nggi wrote: > Dear FS experts > > I tried to make an average subject of 52 subjects, but it seems that an > already fixed error is back: > > Checking 47 > /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po > laris_Male_48.mgh > Checking 48 > /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po > laris_Male_49.mgh > Checking 49 > /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po > laris_Male_50.mgh > Checking 50 > /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po > laris_Male_51.mgh > Checking 51 > /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po > laris_Male_52.mgh > nframestot = 52 > Allocing output > MRIalloc(256, 256, 256): could not allocate 262144 bytes for 11862th slice > > Cannot allocate memory > ERROR: make_average_volume > [neuropsy...@130 subjects]$ > > > I had the same problem with an older Mac FS version. Is there also a fixed > version of FS 4.2.0 for Linux CENTOS 32 bit? > > Thanks in advance > Regards > Jürgen > > > Juergen Haenggi > Ph.D. (Dr. des.) > Division Neuropsychology > Institute of Psychology > University of Zurich > Binzmuehlestrasse 14, PO Box 25 > 8050 Zurich, Switzerland > 0041 44 635 73 97 (phone office) > 0041 76 445 86 84 (phone mobile) > 0041 44 635 74 09 (fax office) > BIN 4.D.04 (office room number) > j.haenggi[at]psychologie.uzh.ch (email) > http://www.psychologie.uzh.ch/neuropsy/ (website) > http://www.juergenhaenggi.ch (private website) > > This e-mail (and any attachment/s) contains confidential and/or privileged > information. If you are not the intended recipient (or have received this > e-mail in error) please notify the sender immediately and destroy this > e-mail. Any unauthorised copying, disclosure or distribution of the > material in this e-mail is strictly forbidden. > > > > > > ___ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] eTIV
Gabriel, Running mri_segstats will not cause any trouble, it just reads files, and doesnt modify anything. You can run v4.2.0 on your subjects manually segmented with v4.0.5, that is, you can safely run: recon-all -s subj -all and it will keep and use all your edits. Only when the -clean flag is included are edits deleted. Nick On Fri, 2009-02-13 at 14:53 +, Gabriel Go.Es. wrote: > Dear freesurfers: > I have two questions: > > 1. I have FS v4.0.5 and i've downloaded the new mri_segstats to > calculate the eTIV, > this new calculation may cause any trouble in my group of manual > segmented subjects? > > > > 2. I have 60 subjects manual segmentated on FreeSrufer 4.0.5, i want > to know if i run the recon2 or recon3 in the new FS 4.2.0, will have > any problem? > > the diferences between versions can cause any trouble with the > analisis because imcompability or something? > > Regards Gabriel > > > > > > > > > __ > > ¿Tu fondo de escritorio es aburrido? Anímalo con las imágenes más > espectaculares > > > __ > Actualízate, descubre el nuevo Windows Live Messenger. ¡Descárgatelo > ya! > ___ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] register PET to MRI
Jose, bbregister was released in v4.2.0. For usage, type bbregister --help. Nick On Fri, 2009-02-13 at 14:15 +0100, Jose Luis Cantero Lorente wrote: > Dear all, > > I would like to automatically corregister PET to MRI by using the command > bbregister. I am not sure what is going on since Freesurfer (release 4.0.5) > always says "Command not found" when I try to run this function. Any help > with this issue would be very welcome. > > Thanks in advance. > > Best, > Jose > > --- > Jose Luis Cantero, Ph.D. > Laboratory of Functional Neuroscience > Department of Physiology, Anatomy, and Cellular Biology > University Pablo de Olavide > Ctra. de Utrera, Km.1 > 41013 - Sevilla > - Spain - > > Phone: +34 954 977433 > Fax: +34 954 349151 > Email: jlcan...@upo.es > http://www.upo.es/neuroaging/es/ > > ___ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] new eTIV calculation
Mike, Another piece of info: the talairach.xfm transform is a registration to an image _with_ skull, to this image: $FREESURFER_HOME/average/711-2C_as_mni_average_305.4dfp.img The utility imgreg_4dfp is used to perform this registration. So the eTIV should not be as subject to changes due to atrophy or sulcul depth, as might be the case if our target image did not have skull. Nick On Thu, 2009-02-12 at 21:21 -0500, Nick Schmansky wrote: > Mike, > > I've updated our wiki page with most of this info: > > http://surfer.nmr.mgh.harvard.edu/fswiki/eTIV > > This update, and most of the stats backing it, was done by Martin Reuter > here at the NMR Center. > > The wiki page shows the difference in variability between the old way of > calculating it (talairach_with_skull.lta) and the new (talairach.xfm). > > We also look at some longitudinal scans of a control and a patient known > to be undergoing atrophy. Results were very good: the eTIV varied the > same (less, actually) than the control. Although I think it would take > many more example of this to accurately answer your question of whether > it is still valid over the _with_skull transform. Maybe Avi knows? > > If anything is unclear or you think is missing or lacking from this wiki > page, let us know, as we get a lot of questions about eTIV, and we want > it to be as good as we think we can get it (at least when using the > scheme outlined in the paper). > > Nick > > > On Thu, 2009-02-12 at 12:08 -0600, Michael Harms wrote: > > Nick, > > This is great -- you probably also noticed that the version of the > > transform used (without or with skull) can make a big difference in the > > computed scale factor. > > > > Was variability assessed by comparing eTIV values computed from multiple > > MR sessions from the same subject? Or by comparison to manually traced > > ICV from a T2w scan? Could you provide some sense of what the actual > > variability (e.g., coefficient of variation) was for the old vs. new > > approaches? > > > > Regarding the accuracy of the new eTIV calculation: Since the scale > > factor is now going to be derived from a transform without the skull, do > > you have a sense to what degree atrophy and increased sulcal CSF will > > impact the values? That is, should the new measure be considered more > > an estimate of "TBV -- total brain volume" (defined as the total volume > > of everything interior to the outer pial surface, including ventricular > > CSF), rather than "intracranial volume" per se? > > > > thanks, > > Mike H. > > > > > > On Wed, 2009-02-11 at 18:41 -0500, Nick Schmansky wrote: > > > If you make use of the estimated Total Intracranial Volume (eTIV) > > > calculation found in the aseg.stats file of your subject data, then you > > > should be aware that we have recently found a more accurate way to make > > > this calculation. We have found that using the talairach.xfm transform > > > instead of the talairach_with_skull.lta transform, from which the > > > determinant is extracted and multiplied by a scale factor, results in > > > lower variability of the eTIV calc in our test set. > > > > > > This new way of calculating eTIV will appear in the next release of > > > Freesurfer. > > > > > > If you want to make use of this new calculation right away, you can > > > download a new version of mri_segstats from here: > > > > > > ftp://surfer.nmr.mgh.harvard.edu/pub/dist/freesurfer/fixes > > > > > > and run it using this command: > > > > > > mri_segstats --subject subjid --etiv-only > > > > > > and it will output the new eTIV. > > > > > > Nick > > > > > > > > > ___ > > > Freesurfer mailing list > > > Freesurfer@nmr.mgh.harvard.edu > > > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > > > > ___ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
[Freesurfer] Cannot allocate memory
Dear FS experts I tried to make an average subject of 52 subjects, but it seems that an already fixed error is back: Checking 47 /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po laris_Male_48.mgh Checking 48 /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po laris_Male_49.mgh Checking 49 /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po laris_Male_50.mgh Checking 50 /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po laris_Male_51.mgh Checking 51 /usr/local/freesurfer/subjects/average/tmp/make_average_vol-tmp-12294/seg-Po laris_Male_52.mgh nframestot = 52 Allocing output MRIalloc(256, 256, 256): could not allocate 262144 bytes for 11862th slice Cannot allocate memory ERROR: make_average_volume [neuropsy...@130 subjects]$ I had the same problem with an older Mac FS version. Is there also a fixed version of FS 4.2.0 for Linux CENTOS 32 bit? Thanks in advance Regards Jürgen Juergen Haenggi Ph.D. (Dr. des.) Division Neuropsychology Institute of Psychology University of Zurich Binzmuehlestrasse 14, PO Box 25 8050 Zurich, Switzerland 0041 44 635 73 97 (phone office) 0041 76 445 86 84 (phone mobile) 0041 44 635 74 09 (fax office) BIN 4.D.04 (office room number) j.haenggi[at]psychologie.uzh.ch (email) http://www.psychologie.uzh.ch/neuropsy/ (website) http://www.juergenhaenggi.ch (private website) This e-mail (and any attachment/s) contains confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden. ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
[Freesurfer] eTIV
Dear freesurfers: I have two questions: 1. I have FS v4.0.5 and i've downloaded the new mri_segstats to calculate the eTIV, this new calculation may cause any trouble in my group of manual segmented subjects? 2. I have 60 subjects manual segmentated on FreeSrufer 4.0.5, i want to know if i run the recon2 or recon3 in the new FS 4.2.0, will have any problem? the diferences between versions can cause any trouble with the analisis because imcompability or something? Regards Gabriel ¿Tu fondo de escritorio es aburrido? Anímalo con las imágenes más espectaculares _ Consigue gratis el nuevo Messenger. ¡Descárgatelo! http://download.live.com/___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
[Freesurfer] eTIV
Dear freesurfers: I have 60 subjects manual segmentated on FreeSrufer 4.0.5, i want to know if i run the recon2 or recon3 in the new FS 4.2.0, will have any problem? the diferences between versions can cause any trouble with the analisis because imcompability or something? Regards Gabriel _ Llévate Messenger en tu móvil allá donde vayas ¿A qué esperas? http://serviciosmoviles.es.msn.com/___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
[Freesurfer] register PET to MRI
Dear all, I would like to automatically corregister PET to MRI by using the command bbregister. I am not sure what is going on since Freesurfer (release 4.0.5) always says "Command not found" when I try to run this function. Any help with this issue would be very welcome. Thanks in advance. Best, Jose --- Jose Luis Cantero, Ph.D. Laboratory of Functional Neuroscience Department of Physiology, Anatomy, and Cellular Biology University Pablo de Olavide Ctra. de Utrera, Km.1 41013 - Sevilla - Spain - Phone: +34 954 977433 Fax: +34 954 349151 Email: jlcan...@upo.es http://www.upo.es/neuroaging/es/ ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
