[Freesurfer] nii format input for recon-all

2013-11-29 Thread Rujing Zha
Dear all,
I have done the recon-all for DICOM format input of all subjects. Part of 
subjects extracted brain volume not very perfectly. I want to use brain volumes 
nifti format which have strip the skull and neck well.
My question is how to use the brain volume in nii format to segment and next 
recon-all analysis.
Thanks.
All the best.

2013-11-29



Rujing Zha___
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[Freesurfer] glmfit error

2013-11-29 Thread Gabriel Gonzalez Escamilla
Dear FS experts I'm running glmfit with FS v5.1 and get the following error:ERROR: matrix is ill-conditioned or badly scaled, condno = 1.75146e+07Possible problem with experimental designcommand line:mri_glmfit --surf PLI_MCI_sample7_avg lh --C /root/trabajo/freesurfer/subjects/PLI_MCI_sample7_avg/stats_MRI_PET_Biomarkers/glm_files/contrast_withinE4_neg.mat --fsgd /root/trabajo/freesurfer/subjects/PLI_MCI_sample7_avg/stats_MRI_PET_Biomarkers/glm_files/lh.cortex_AVGthickness_APOB_fsgd.txt dods --label /root/trabajo/freesurfer/subjects/PLI_MCI_sample7_avg/label/lh.cortex.label --y /root/trabajo/freesurfer/subjects/PLI_MCI_sample7_avg/stats_MRI_PET_Biomarkers/lh.thickness_s12mm.mgh --no-prune --glmdir /root/trabajo/freesurfer/subjects/PLI_MCI_sample7_avg/stats_MRI_PET_Biomarkers/resultsthickness_cortex_s12mm_BiomrkrsWithin/lh.cortex_AVGthickness_APOB_contrast_withinE4_neg/I've performed analyses like this many times, but with different subjects, more subjects but same fsgd structure (same regressors), and I have no Idea of what's wrong in here.Please, find attached the contrast and the fsgd matrices used.Can any one guide me on this?Many thanks in advanced,Gabriel


contrast_withinE4_neg.mat
Description: Binary data
GroupDescriptorFile 1
Title PVEc-PET_with_MRI in sig_clusters of MC_3000
Class E4female
Class E4male
Class noE4female
Class noE4male
variables zAge zAPOB zlh.cortex_AVGthickness 
Input mci_01_year1 noE4male -0.025380 -0.495746 -0.569553 
Input mci_02_year1 noE4male 0.416237 -0.163064 -1.388804 
Input mci_04_year1 noE4female -0.466997 -1.018533 1.324541 
Input mci_10_year1 noE4male -0.319792 -1.351215 0.286936 
Input mci_11_year1 noE4female 0.563442 -0.400694 -0.384206 
Input mci_14_year1 noE4male -0.466997 -0.281879 0.611082 
Input mci_15_year1 noE4female 1.152265 -0.567035 0.446893 
Input mci_16_year1 noE4male 0.857854 0.549827 -1.563149 
Input mci_20_year1 noE4male -0.614203 -1.066059 -0.254717 
Input mci_23_year1 noE4male 1.299471 -0.780902 -0.043134 
Input mci_25_year1 noE4male -0.761409 -0.899718 0.469744 
Input mci_33_year1 noE4male -0.908614 0.858747 0.584846 
Input mci_36_year1 noE4male -0.025380 2.260766 -0.997798 
Input mci_38_year1 noE4male -2.822288 2.759790 1.354163 
Input mci_39_year1 noE4male -1.350231 2.569685 0.621238 
Input mci_06_year1 E4female -0.172586 -0.234353 -0.633028 
Input mci_07_year1 E4male -1.350231 -0.139301 -0.126075 
Input mci_08_year1 E4female -0.025380 0.383486 -1.171297 
Input mci_09_year1 E4female 0.857854 -0.234353 -0.370665 
Input mci_13_year1 E4male 0.121825 -0.495746 0.904760 
Input mci_17_year1 E4male -0.466997 -0.044248 -0.776059 
Input mci_18_year1 E4female 1.005059 -0.163064 -0.820915 
Input mci_19_year1 E4male 1.152265 0.074567 -2.081952 
Input mci_21_year1 E4female 0.121825 -0.091774 1.423562 
Input mci_27_year1 E4female -1.350231 -0.543272 2.172568 
Input mci_29_year1 E4male 1.888294 0.240908 0.683020 
Input mci_35_year1 E4male 0.710648 -0.567035 1.014783 
Input mci_41_year1 E4female 0.269031 0.169619 -0.510310 
Input mci_42_year1 E4male 0.710648 -0.329405 -0.206476 
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[Freesurfer] Cortical thickness/surface area in volume-defined ROIs

2013-11-29 Thread Anita van Loenhoud
Dear Freesurfer experts,

I want to use volume-defined ROIs (obtained in a VBM study) to extract mean
thickness and surface area, in a total group of 138 participants. I
followed the tutorial 'Cortical Thickness of a volume-defined ROI'. I have
a few questions regarding this analysis:

1. The volume-defined ROI (i.e. orange dot) appears normal on my avg152_T1
and fsaverage. After the vol2surf-step, however, a few problems arise. The
new ROIs look very different: one ROI actually consists of two clusters
close to each other, one is very small and two ROIs have completely
disappeared. Does anyone know why this happened?

2. When I want to obtain surface area data instead of thickness data, is it
sufficient to replace 'thickness'  with 'area' in the surf2surf command (it
seems to work, but I want to check)? So:
--sval lh.area \
--tval lh.area.fsaverage.mgh \

3. mri_segstats creates separate files for each ROI in each participant.
When I want to have all thickness and area ROI data in one file, can I use
asegstats2table, meas mean (it seems to work, but I want to check)?

Any help would be very much appreciated!

Anita
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Re: [Freesurfer] Cortical thickness/surface area in volume-defined ROIs

2013-11-29 Thread Rujing Zha
Dear Anita,
Would you please tell me where I can find Cortical Thickness of a 
volume-defined ROI?
Thanks,
All the best.
2013-11-29



Rujing Zha



发件人:Anita van Loenhoud acvanloenh...@gmail.com
发送时间:2013-11-29 21:51
主题:[Freesurfer] Cortical thickness/surface area in volume-defined ROIs
收件人:freesurferfreesurfer@nmr.mgh.harvard.edu
抄送:

Dear Freesurfer experts,


I want to use volume-defined ROIs (obtained in a VBM study) to extract mean 
thickness and surface area, in a total group of 138 participants. I followed 
the tutorial 'Cortical Thickness of a volume-defined ROI'. I have a few 
questions regarding this analysis:


1. The volume-defined ROI (i.e. orange dot) appears normal on my avg152_T1 and 
fsaverage. After the vol2surf-step, however, a few problems arise. The new ROIs 
look very different: one ROI actually consists of two clusters close to each 
other, one is very small and two ROIs have completely disappeared. Does anyone 
know why this happened?


2. When I want to obtain surface area data instead of thickness data, is it 
sufficient to replace 'thickness'  with 'area' in the surf2surf command (it 
seems to work, but I want to check)? So:
--sval lh.area \ 
--tval lh.area.fsaverage.mgh \


3. mri_segstats creates separate files for each ROI in each participant. When I 
want to have all thickness and area ROI data in one file, can I use 
asegstats2table, meas mean (it seems to work, but I want to check)?


Any help would be very much appreciated!


Anita___
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Re: [Freesurfer] Cortical thickness/surface area in volume-defined ROIs

2013-11-29 Thread Anita van Loenhoud
Hi Rujing Zha,

Click this link: http://freesurfer.net/fswiki/VolumeRoiCorticalThickness

Anita
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Re: [Freesurfer] Cortical thickness/surface area in volume-defined ROIs

2013-11-29 Thread Bruce Fischl

Hi Anita

the problem is that the cortex is not well aligned in the avg152 space, and 
so a volume-defined ROI will not follow the contours of the cortex well. 
Not sure that there's much you can do about this except possibly map the 
ROI back to the individual subjects, and recreate it in fsaverage space 
using surface-based tools.  Perhaps Doug will chime in after the trytophan 
wears off


Bruce


On 
Fri, 29 Nov 2013, Anita van Loenhoud wrote:



Dear Freesurfer experts,

I want to use volume-defined ROIs (obtained in a VBM study) to extract mean
thickness and surface area, in a total group of 138 participants. I followed
the tutorial 'Cortical Thickness of a volume-defined ROI'. I have a few
questions regarding this analysis:
1. The volume-defined ROI (i.e. orange dot) appears normal on my avg152_T1
and fsaverage. After the vol2surf-step, however, a few problems arise. The
new ROIs look very different: one ROI actually consists of two clusters
close to each other, one is very small and two ROIs have completely
disappeared. Does anyone know why this happened?

2. When I want to obtain surface area data instead of thickness data, is it
sufficient to replace 'thickness'  with 'area' in the surf2surf command (it
seems to work, but I want to check)? So:
--sval lh.area \ 
--tval lh.area.fsaverage.mgh \

3. mri_segstats creates separate files for each ROI in each participant.
When I want to have all thickness and area ROI data in one file, can I use
asegstats2table, meas mean (it seems to work, but I want to check)?

Any help would be very much appreciated!

Anita

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Re: [Freesurfer] Cortical thickness/surface area in volume-defined ROIs

2013-11-29 Thread Rujing Zha
Dear,
I get it. Thanks.
All the best.

2013-11-29



Rujing Zha



发件人:Anita van Loenhoud acvanloenh...@gmail.com
发送时间:2013-11-29 22:18
主题:Re: [Freesurfer] Cortical thickness/surface area in volume-defined ROIs
收件人:freesurferfreesurfer@nmr.mgh.harvard.edu
抄送:

Hi Rujing Zha,


Click this link: http://freesurfer.net/fswiki/VolumeRoiCorticalThickness



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[Freesurfer] major lobes

2013-11-29 Thread Mojdeh Zamyadi
Hi all,

Since I haven't heard back about my question so far, I'm posting it 
again! Sorry about this but I really need your help!

As mentioned in my previous posts, I'm interested in having the GM 
volumetric lobar masks (frontal, parietal, temporal, occipital, and 
insular) with the final goal of moving them the DTI space to perform 
thalamic parcellation. I've ran the following commands:

1- a. mri_annotation2label  --subject P2 --hemi lh --lobesStrict 
freeSurfer_Results/P2/label/lh.freeSurfer_lobes.annot
 b. mri_annotation2label  --subject P2 --hemi rh --lobesStrict 
freeSurfer_Results/P2/label/rh.freeSurfer_lobes.annot

2- mri_aparc2aseg --annot freeSurfer_lobes --s P2 --o 
freeSurfer_Results/P2/label/freeSurfer_lobes.nii.gz

I thought after doing this I'm going to get the 5 or 6 lobar labels, but 
instead I'm getting a detailed WM + GM segmentation. I looked at 
FreeSurferColorLUT.txt and tried to manually combine labels in the 
range of 1000-1035 for the left and 2000-2035 for the right hemisphere 
to get the lobe masks, but after having a closer look I realised that 
labels 1002,1008-1035  2002,2008-2035 are all empty (ie. I only have 7 
labels in each hemisphere)! so, I'm now not sure how to manually combine 
these labels either!

Could someone PLEASE PLEASE clarify this for me! I would really 
appreciate any help!

Thanks,
-Mojdeh




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Re: [Freesurfer] major lobes

2013-11-29 Thread Douglas Greve

The commands look right and it sounds like you might have the right 
result. What do you mean you are getting a detailed WM + GM 
segmentation? If you just load freeSurfer_lobes.nii.gz into tkmedit, the 
label names will be all messed up because you don't have the proper 
color table, but you should still only get 7 per hemi. To get the proper 
color table, run mri_annotation2label with --ctab, then merge the two 
ctabs you get (lh and rh). You don't need to rerun mri_aparc2aseg
doug



On 11/29/13 3:09 PM, Mojdeh Zamyadi wrote:
 Hi all,

 Since I haven't heard back about my question so far, I'm posting it
 again! Sorry about this but I really need your help!

 As mentioned in my previous posts, I'm interested in having the GM
 volumetric lobar masks (frontal, parietal, temporal, occipital, and
 insular) with the final goal of moving them the DTI space to perform
 thalamic parcellation. I've ran the following commands:

 1- a. mri_annotation2label  --subject P2 --hemi lh --lobesStrict
 freeSurfer_Results/P2/label/lh.freeSurfer_lobes.annot
   b. mri_annotation2label  --subject P2 --hemi rh --lobesStrict
 freeSurfer_Results/P2/label/rh.freeSurfer_lobes.annot

 2- mri_aparc2aseg --annot freeSurfer_lobes --s P2 --o
 freeSurfer_Results/P2/label/freeSurfer_lobes.nii.gz

 I thought after doing this I'm going to get the 5 or 6 lobar labels, but
 instead I'm getting a detailed WM + GM segmentation. I looked at
 FreeSurferColorLUT.txt and tried to manually combine labels in the
 range of 1000-1035 for the left and 2000-2035 for the right hemisphere
 to get the lobe masks, but after having a closer look I realised that
 labels 1002,1008-1035  2002,2008-2035 are all empty (ie. I only have 7
 labels in each hemisphere)! so, I'm now not sure how to manually combine
 these labels either!

 Could someone PLEASE PLEASE clarify this for me! I would really
 appreciate any help!

 Thanks,
 -Mojdeh




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[Freesurfer] how to recon-all multiple participants simultaneously? thanks

2013-11-29 Thread chen kanwisher
Dear Freesurfers,
 I'd like to ask how could we recon-all multiple participants at the
same time?
 My laptop has a 32G ram and a 8-core-intel-Core-i7 CPU,  i expect it
could speed up the surface construction by running several participants
simultaneously. When i use the following command: 'foreach i (1 2
3);recon-all -subjid sub$i -all -openmp8;end', each participant needs
4-5 hours. Although this is much faster than the typical time consumption
as stated in freesurfer wiki, i notice only 3 out my 32G working memory is
used under such command. So I am wondering if there are some other ways to
make full use of the working memory and make the surface construction go
even faster.
 I have tried to open 8 terminal windows, each for a separate
participant, and for each window, the command was like this, 'recon-all
sub01 -all openmp 8'. It turned out the analysis ran extremely slow, none
of the subjects finished even after 36 hours, the CPU was 100% used, but
still no more than 7 of the 32G working memory was occupied.
So, question, is it possible for me to make the analysis more quickly,
and if so, how?
Looking forward to your informations, and thank you a lot!
Chen
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