Freesurfer

freesurfer@nmr.mgh.harvard.edu

18 participants
30131 discussions

mris_ca_label
by xforever＠ucla.edu 26 May '09

26 May '09

Dear Freesurfer Experts, I was able to use mris_ca_train to produce a atlas (.gcs) file with all the labels I am interested in, and I also modified the surface_labels.txt in the freesurfer folder so only the labels I am interested are listed on the txt file. however, when I try to use mris_ca_label to apply the label onto the different brain. The names of each label doesn't transfer, I'd get names like parcellation 20 30 150. Is there anyway to fix this? sincerely, Andy S

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RES: [Freesurfer] focal cortical dysplasia
by Pedro Paulo de Magalhaes Oliveira Junior 26 May '09

26 May '09

In the article section of FreeSurfer wiki there is a paper about cortical thickness in PMG. In that study we also analyzed, but still not published, cortical dysplasia cases. In some cases we made manual interventions (look at FreeSurfer wiki on recon-all process.) to fix small segmentation errors. Take a look on this. If you need more help drop me a note. Enviado do meu celular Nokia -----Msg original----- De: Heath Pardoe Enviada: 26/05/2009 05:57:24 Para: freesurfer(a)nmr.mgh.harvard.edu Assunto: [Freesurfer] focal cortical dysplasia Hi, I've run the standard recon-all processing stream on a subject with a fairly large (~ few cms) focal cortical dysplasia near the central sulcus. On the MR scan the intensity's somewhere between gm & wm, although it is clearly visible. The wm surface has pretty much missed the whole thing though. I was wondering if there are any parameters I can adjust to potentially improve sensitivity to this kind of pathology? I can send some images if that helps. Thanks Heath -- Heath Pardoe, PhD Brain Research Institute Neurosciences Building Austin Health Banksia Street Heidelberg West, Victoria, 3081, Australia Phone: (+61 3) 9496 2576 Fax: (+61 3) 9496 4071 Email: h.pardoe(a)brain.org.au _______________________________________________ Freesurfer mailing list Freesurfer(a)nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

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focal cortical dysplasia
by Heath Pardoe 26 May '09

26 May '09

Hi, I've run the standard recon-all processing stream on a subject with a fairly large (~ few cms) focal cortical dysplasia near the central sulcus. On the MR scan the intensity's somewhere between gm & wm, although it is clearly visible. The wm surface has pretty much missed the whole thing though. I was wondering if there are any parameters I can adjust to potentially improve sensitivity to this kind of pathology? I can send some images if that helps. Thanks Heath -- Heath Pardoe, PhD Brain Research Institute Neurosciences Building Austin Health Banksia Street Heidelberg West, Victoria, 3081, Australia Phone: (+61 3) 9496 2576 Fax: (+61 3) 9496 4071 Email: h.pardoe(a)brain.org.au

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licensing question
by John Drozd 25 May '09

25 May '09

*Hello, I have a question regarding the second statement in the Clinical Use section of your registration web page. "Clinical Use: This software may not and should never be used for clinical purposes. Software used for clinical purposes may require regulatory documentation and associated filings." Does the statement "**Software used for clinical purposes may require regulatory documentation and associated filings." mean that a version of FreeSurfer can be used for clinical work? Thank you for your time, john drozd *

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FreeSurfer in Multiple Sclerosis some questions
by Pedro Paulo de Magalhães Oliveira Junior 25 May '09

25 May '09

I'm not sure whether the Freesurfer list is the appropriate place for this discussion or not, however I'll place the question here and if somebody has an idea we can discuss by pm. Regarding the paper: Focal thinning of the cerebral cortex in multiple sclerosis ( http://www.nmr.mgh.harvard.edu/~fischl/reprints/Brain2003v126p1734Sailercor… ) AFAIK is the only paper using FreeSurfer to study Multiple Sclerosis. I have a PhD student who is conducting a similar study from the above mentioned paper using FreeSurfer and after data analysis we have some questions: 1) The focal thinning pattern we found is similar to the one described in Sailer's paper. Since that paper is from 2003 I suppose the 4.3 version of FreeSurfer produce results more accurate than that. So confirming that data is an important finding? 2) Studying aseg data we found important atrophy of basal ganglia and corpus callosum. Is the FreeSurfer segmentation accurate enough in presence of MS lesions in T1 imges? 3) The atrophy in corpus callosum is not accompanied by cortical thickness reduction close to this area. Speaking in general: can we think that this atrophy that affects white matter only is caused by misclassified focal lesion? Thanks in advance for any comments. PPJ ----------------------------------------------------------- Pedro Paulo de M. Oliveira Junior Diretor de Operações Netfilter & SpeedComm Telecom --- Novo Netfilter 3.0 www.netfilter.com.br

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.w files
by Siddharth Srivastava 22 May '09

22 May '09

Hi all, what do the .w files (generated, in my case, by mri_surf2cluster) contain? How can i view them/use them? thanks, sid.

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subcortical volumes - wmparc vs aseg
by Dankner, Nathan (NIH/NIMH) [F] 22 May '09

22 May '09

Hi all, Is it preferable to use the volumes for subcortical structures listed in the wmparc.stats file or the aseg.stats file? I've noticed that they are different, and was wondering which was more accurate. Thanks, Nathan

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longitudinal processing stream
by Dana W. Moore 22 May '09

22 May '09

Hi freesurfer team, I noticed in the new version release notes that the longitudinal stream is still a work in progress. Any idea of what the time-frame is for this fix? Also, I was wondering if there is a way after longitudinal processing to look at change maps in tkmedit or tksurfer (e.g. a color-coded segmentation that shows atrophy)? Thanks, Dana Dana W. Moore, Ph.D. Neuropsychology Fellow Cornell Neuropsychology Service Weill Medical College of Cornell University New York Presbyterian Hospital Department of Neurology & Neuroscience 428 East 72nd Street, Suite 500 New York, NY 10021 Phone: 212-746-2441 Fax: 212-746-5584 Email: dwm2003(a)med.cornell.edu

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what's the parc_dir flag in mri_ca_train
by xforever＠ucla.edu 22 May '09

22 May '09

Dear Freesurfer Experts I'm trying to train the program to recognize subcorticle structures of Vervet monkeys using command mri_ca_train. I've manually made a bunch of labels, and as I use the mri_ca_train, it stopped for no reason. On the wiki page : http://surfer.nmr.mgh.harvard.edu/fswiki/mri_ca_train it says a parc_dir flag is required. what is this parc_dir, and what should I put in it? thanks in advance for the help sincerely, Andy S

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problems with getting started with freesurfer
by Mayuresh Korgaonkar 21 May '09

21 May '09

Dear Freesurfer authors and users, I recently installed the CentOS 4*86_64 Freesurfer v4.3.0 on a RedHat machine. After following each installation step, I have reached the testingFreesurfer module. However I seem to be having problems in running the first few steps. On running the "tkmedit bert orig.mgz" & "tkmedit bert norm.mgz -segmentation aseg.mgz $FREESURFER_HOME/FreeSurferColorLUT.txt" commands, all I get is "Setting subject to bert" and nothing happens following that. Now, when I run the "tksurfer bert rh pial" I get errors (see at end of email). Any ideas whats going on and how I could fix this? Thanks, Mayuresh *********** error **************** [root@localhost ~]# tksurfer bert rh pial surfer: current subjects dir: /usr/local/freesurfer/subjects surfer: not in "scripts" dir ==> using cwd for session root surfer: session root data dir ($session) set to: surfer: /root surfer: all rgb files written to /root surfer: Reading header info from /usr/local/freesurfer/subjects/bert/mri/T1..mgz surfer: vertices=131860, faces=263716 Loading /usr/local/freesurfer/surface_labels.txt surfer: ### redraw failed: no gl window open surfer: single buffered window surfer: tkoInitWindow(bert) Tk_Init failed: this isn't a Tk applicationunknown color name "Black" Tix_Init failed: this isn't a Tk applicationunknown color name "Black" surfer: using interface /usr/local/freesurfer/lib/tcl/tksurfer.tcl Reading /usr/local/freesurfer/lib/tcl/tkm_common.tcl Reading /usr/local/freesurfer/lib/tcl/tkm_wrappers.tcl Reading /usr/local/freesurfer/lib/tcl/fsgdfPlot.tcl Error sourcing /usr/local/freesurfer/lib/tcl/tksurfer.tcl: this isn't a Tk applicationunknown color name "Black" surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_InflatedVSetLoaded 0: can't read "glEnableGroups(mg_InflatedVSetLoaded)": no such variable surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_PialVSetLoaded 0: can't read "glEnableGroups(mg_PialVSetLoaded)": no such variable surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_TimeCourseLoaded 0: can't read "glEnableGroups(mg_TimeCourseLoaded)": no such variable surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_OverlayLoaded 0: can't read "glEnableGroups(mg_OverlayLoaded)": no such variable surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_CurvatureLoaded 0: can't read "glEnableGroups(mg_CurvatureLoaded)": no such variable surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_LabelLoaded 0: can't read "glEnableGroups(mg_LabelLoaded)": no such variable surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_FieldSignLoaded 0: can't read "glEnableGroups(mg_FieldSignLoaded)": no such variable surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_FieldMaskLoaded 0: can't read "glEnableGroups(mg_FieldMaskLoaded)": no such variable surfer: Error sending tcl command UpdateUndoItemLabel "Nothing to Undo": invalid command name "UpdateUndoItemLabel" surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_OriginalVSetLoaded 1: can't read "glEnableGroups(mg_OriginalVSetLoaded)": no such variable surfer: Error sending tcl command LblLst_SetStructures { 0 Unknown 1 G_cingularis 2 G_cuneus 3 G_frontalis_inf-pars_opercularis 4 G_frontalis_inf-pars_orbitalis 5 G_frontalis_inf-pars_triangularis 6 G_frontalis_medius 7 G_frontalis_sup-pars_lateralis 8 G_frontalis_sup-pars_medialis 9 G_frontomarginalis 10 G_hippocampi 11 G_insularis_breves 12 G_occipitalis_inf 13 G_occipitalis_medius-pars_inf 14 G_occipitalis_medius-pars_sup 15 G_occipitalis_sup 16 G_lateralis 17 G_lingualis 18 G_parahippocampi 19 G_orbitalis 20 G_paracentralis 21 G_parietalis_inf-pars_angularis 22 G_parietalis_inf-pars_supramarginalis 23 G_parietalis_sup 24 G_postcentralis 25 G_precentralis 26 G_precuneus 27 G_rectus_and_S_orbitalis_medialis 28 G_rectus_and_S_orbitalis_medialis2 29 G_subcentralis 30 G_supracingularis 31 G_temporalis_transversalis 32 G_temporalis_inf 33 G_temporalis_medius 34 G_temporalis_sup-pars_lateralis 35 G_temporalis_sup-planum_polare 36 G_temporalis_sup-planum_temporale 37 Plica_falciformis 38 Polus_occipitalis 39 Polus_temporalis 40 S_temporalis_transversalis 42 S_angularis 43 S_calcarinus 44 S_centralis_insulae_&_G_insularis_longus 46 S_centralis 47 S_cingularis 48 S_cingularis-pars_marginalis 49 S_circularis_insulae_ant 50 S_circularis_insulae_inf 51 S_circularis_insulae_sup 52 S_corpori_callosi 53 S_diagonalis 54 S_frontalis_inf 55 S_frontalis_medialis 56 S_frontalis_medius 57 S_frontalis_sup 58 S_frontomarginalis 59 S_intermedius_primus 60 S_intermedius_secundus 61 S_intracingularis 62 S_intraoccipitalis_medius 63 S_intraoccipitotemporalis_lateralis 64 S_intraparietalis 65 S_lateralis-pars_ant-ramus_horizontalis 66 S_lateralis-pars_ant-ramus_verticalis 67 S_lateralis-pars_horizontalis 68 S_lateralis-pars_post 69 S_lunatus 70 S_occipitalis_ant 71 S_occipitalis_inf 72 S_occipitalis_medius 73 S_occipitalis_sup 74 S_occipitalis_transversalis 75 S_occipitopolaris 76 S_occipitotemporalis_lateralis 77 S_occipitotemporalis_medialis 78 S_orbitales 79 S_orbitalis_lateralis 80 S_paracalcarinus 81 S_paracentralis 82 S_parietalis_transversalis 83 S_parieto_occipitalis 84 S_postcentralis 85 S_precentralis 86 S_retrocalcarinus 87 S_rhinalis 88 S_subcentralis_ant_&_post_ 89 S_suborbitalis 90 S_subparietalis 91 S_supracingularis 92 S_temporalis_inf 93 S_temporalis_sup 94 S_triangularis }: invalid command name "LblLst_SetStructures" reading white matter vertex locations... surfer: Error sending tcl command tkm_SetEnableGroupStatus mg_WhiteVSetLoaded 1: can't read "glEnableGroups(mg_WhiteVSetLoaded)": no such variable surfer: Error sending tcl command UpdateLinkedVarGroup all: invalid command name "UpdateLinkedVarGroup" % surfer: Error sending tcl command MoveToolWindow 663 681: invalid command name "MoveToolWindow" ************************************************************ Explore and discover exciting holidays and getaways with Yahoo! 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