[Freesurfer] Freesurfer 4.20 for recon-all –all, and Freesurfer 5.10 for recon-all -s subjid -qcache? Workaround for a bug in the group statistics for volume?

2011-09-02 Thread Knut J Bjuland


Hi
 
I have two questions about the Freesurfer recon-all. Can I use Freesurfer 4.20 
for recon-all –all, and Freesurfer 5.10 for recon-all -s subjid -qcache?
 

There was also reported a bug in the group statistics for volume in Freesurfer 
5.1. Are there any workaround for this error? 
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[Freesurfer] WM Parcellation - lobe mapping

2011-09-02 Thread Brainiac .
Hi All,

I need to classify WM into different lobes (temporal, parietal, frontal,
occipital). I tried to do the lobe mapping using parcellations from
wmparc.mgz. http://surfer.nmr.mgh.harvard.edu/fswiki/CorticalParcellation

My problem is the unsegmented white matter in wmparc.mgz. My understanding
is that these unsegmented areas are classified so because they are beyond
5mm from any pre-classified cortex area.

My questions:
(1) So in order to classify unsegmented WM into lobes, do I need to take
each voxel in the unsegmented WM region and then assign it to the closest
cortex area to classify it into respective parcellations. Then re-group into
lobes. Is this correct?

(2) Are there any tailor made function or any other easier way to do this?
Is there any easier way to segment WM into lobes directly that I have
missed?

Thanks,
Brain
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[Freesurfer] Ventricular structures - exact definitions

2011-09-02 Thread mschwei1
Hello,

as I am interested in the volume of ventricular structures in the brain, I
would like to more precisely understand the labels given by
/stats/aseg.stats in Freesurfer.

Most importantly, what is the precisely defined difference between
Left-Lateral-Ventricle and Left-Inf-Lat-Vent? Would you always combine
these two in a volumetric study? Why are they separately segmented? And
what exactly is the 5th-Ventricle?
Less importantly, how exactly do you define CC_Posterior,
CC_Mid_Posterior, CC_Central, CC_Mid_Anterior, and CC_Anterior?

Is there a paper or homepage defining these exactly?
Any help appreciated!

Thanks a lot, Meike

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[Freesurfer] dcm2nii and recon all

2011-09-02 Thread Carolina Valencia
Dear FS' users,

I have a 3D T1 from a GE scanner which I convert with dcm2nii to use it with
recon-all, but I got 3 images:
o -- original
oo -- orthogonal
co -- cropped image

Which I should use to run the command recon-all?

thanks!

Carolina
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Re: [Freesurfer] Longitudinal aseg errors

2011-09-02 Thread Martin Reuter
Hi Jeff,

after editing anything in the cross, you usually need to rerun the base
(and then all longs).
Also you need to edit the base (brainmask, talairach) as that is where
the long processes take the information from. It is more important to
fix the base than the cross in many cases.

More on longitudinal editing is here:
http://surfer.nmr.mgh.harvard.edu/fswiki/LongitudinalEdits 
Examples are in the tutorial:
http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/LongitudinalTutorial 

Good luck, Martin

On Thu, 2011-09-01 at 10:24 -1000, Jeff Sadino wrote:
 Hello,
  
 I finished processing my first longitudinal subjects, but I have some
 errors.  The TP3.long aseg.mgz file is poorly segmented (corpus
 callosum, see attachment).  I am wondering where I should make
 edits to correct this.  The surfaces of all 3 longitudinal timepoints
 look fine, so according to the wiki, I should only have to edit the
 TP3.long.  Is that true?  If not, then I will have to edit TP3.cross.
  Originally, the watershed for TP3.cross was bad.  I edited this and
 re-ran autorecon2 and autorecon3, and exited with no errors.  However,
 the cross aseg.mgz is still bad.  I thought maybe the talairach.m3z
 file was bad, but the nu_noneck image was transformed fine.  I see
 that the log file says during the mri_ca_label step that the CSF peak
 is too bright - rejecting (see attachment).  After comparing the csf
 areas of the TP3.cross norm image with the csf areas of the TP1.cross
 norm image, they have values of 30 compared to values of 10.  Previous
 posts have suggested to copy the orig.mgz image to the nu.mgz image
 for a similar problem.  Can someone please advise me on where it would
 be best to make the edits so that my longitudinal reconstructions are
 accurate?
 
 
 Thank you!
 Jeff Sadino
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[Freesurfer] what is thalamus-proper and clusters-table related question

2011-09-02 Thread Tetiana Dadakova
Dear FS list,

1. What does a label Thalamus Proper include? Is it the same as thalamus?

2. After correcting for multiple comparisons, I get a table of
clusters. I have several questions regarding this table: What do the
columns Max, CWPLow, and CWPHigh represent? Regarding the NVtxs
column: is it the number of vertexes in cluster?  What kind of
information can I get from this value? If two clusters have different
areas but the same number of vertexes, does it mean something?

Thank you very much for your help and for your time,
Tanja.
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Re: [Freesurfer] what is thalamus-proper and clusters-table related question

2011-09-02 Thread Douglas N Greve
I'm not sure about #1, maybe BF can chime in.

Tetiana Dadakova wrote:
 Dear FS list,

 1. What does a label Thalamus Proper include? Is it the same as thalamus?

 2. After correcting for multiple comparisons, I get a table of
 clusters. I have several questions regarding this table: What do the
 columns Max, CWPLow, and CWPHigh represent? 
  1. CWP - cluster-wise pvalue. The pvalue of the cluster corrected for
 multiple comparisons
  2. CWPLow - lower 90% confidence limit of CWP based on binomial 
distribution
  3. CWPHi  - upper 90% confidence limit of CWP based on binomial 
distribution

 Regarding the NVtxs
 column: is it the number of vertexes in cluster?  
Yes
 What kind of information can I get from this value? 
It is not very informative so don't feel like you have to use it. It is 
good for assuring that the software is doing the right thing.
 If two clusters have different areas but the same number of vertexes, does it 
 mean something?
   
It means that the area of the component triangles that make up the 
vertices is different.

doug
 Thank you very much for your help and for your time,
 Tanja.
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gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html

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Re: [Freesurfer] dcm2nii and recon all

2011-09-02 Thread Douglas N Greve
I have no idea, but probably the original.
doug

Carolina Valencia wrote:
 Dear FS' users,

 I have a 3D T1 from a GE scanner which I convert with dcm2nii to use 
 it with recon-all, but I got 3 images:
 o -- original
 oo -- orthogonal 
 co -- cropped image

 Which I should use to run the command recon-all?

 thanks!

 Carolina
 

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gr...@nmr.mgh.harvard.edu
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Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html

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Re: [Freesurfer] Grad_Unwarp question

2011-09-02 Thread Nick Schmansky
The grad_unwarp_tables directory is not distributed with the public
release of freesurfer, as the files are under Siemens license to the NMR
Center only.  So I suppose you could check with Siemens to see if they can
supply you with those data tables for your scanner.

N.


 Hello,

 We used to run:

 grad_unwarp with matlab invoked with -nodisplay option. The version
 information on this file is:

 version: Version for distribution, 1.0, author: SC---
 id: id9/01 13:34:11

 I see that Freesurfer 5.1 has a grad_unwarp script, which I can modify
 to invoke matlab with -nodisplay, however, I dont see any sub-folder
 grad_unwarp_tables in FREESURFER_HOME. Where do I get these tables
 from? Am I missing some installation option?

 Regards
 Mohana
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Re: [Freesurfer] what is thalamus-proper and clusters-table related question

2011-09-02 Thread Ritobrato Datta
Actually I have the same question - does the thalamus proper include LGN ?

- Original Message -
From: Douglas N Greve gr...@nmr.mgh.harvard.edu
To: Tetiana Dadakova tetian...@gmail.com
Cc: freesurfer@nmr.mgh.harvard.edu
Sent: Friday, September 2, 2011 12:28:45 PM
Subject: Re: [Freesurfer] what is thalamus-proper and clusters-table related 
question

I'm not sure about #1, maybe BF can chime in.

Tetiana Dadakova wrote:
 Dear FS list,

 1. What does a label Thalamus Proper include? Is it the same as thalamus?

 2. After correcting for multiple comparisons, I get a table of
 clusters. I have several questions regarding this table: What do the
 columns Max, CWPLow, and CWPHigh represent? 
  1. CWP - cluster-wise pvalue. The pvalue of the cluster corrected for
 multiple comparisons
  2. CWPLow - lower 90% confidence limit of CWP based on binomial 
distribution
  3. CWPHi  - upper 90% confidence limit of CWP based on binomial 
distribution

 Regarding the NVtxs
 column: is it the number of vertexes in cluster?  
Yes
 What kind of information can I get from this value? 
It is not very informative so don't feel like you have to use it. It is 
good for assuring that the software is doing the right thing.
 If two clusters have different areas but the same number of vertexes, does it 
 mean something?
   
It means that the area of the component triangles that make up the 
vertices is different.

doug
 Thank you very much for your help and for your time,
 Tanja.
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-- 
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MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html

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[Freesurfer] Surface analysis FSL GFEAT results for multiple subjects with 4 runs each

2011-09-02 Thread Michelle Umali
Hi Freesurfers,
I've  been looking at the wiki for information on doing an surface analysis
using GFEAT results for within subject, across multiple runs.  On the wiki,
a fixed effects analysis was used because there were only two runs.  I have
four runs and FSL uses FLAME 1 and FLAME 1+2.

1. Should/how do I do I random effects for 4 runsb?

2. How does one do a group surface analysis this for multiple subjects who
each have 4 runs?

Thanks.
Michelle
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Re: [Freesurfer] what is thalamus-proper and clusters-table related question

2011-09-02 Thread Bruce Fischl
Yes, not sure why the CMA called it that


On Sep 2, 2011, at 12:28 PM, Douglas N Greve gr...@nmr.mgh.harvard.edu wrote:

 I'm not sure about #1, maybe BF can chime in.
 
 Tetiana Dadakova wrote:
 Dear FS list,
 
 1. What does a label Thalamus Proper include? Is it the same as thalamus?
 
 2. After correcting for multiple comparisons, I get a table of
 clusters. I have several questions regarding this table: What do the
 columns Max, CWPLow, and CWPHigh represent? 
  1. CWP - cluster-wise pvalue. The pvalue of the cluster corrected for
 multiple comparisons
  2. CWPLow - lower 90% confidence limit of CWP based on binomial 
 distribution
  3. CWPHi  - upper 90% confidence limit of CWP based on binomial 
 distribution
 
 Regarding the NVtxs
 column: is it the number of vertexes in cluster?  
 Yes
 What kind of information can I get from this value? 
 It is not very informative so don't feel like you have to use it. It is 
 good for assuring that the software is doing the right thing.
 If two clusters have different areas but the same number of vertexes, does 
 it mean something?
 
 It means that the area of the component triangles that make up the 
 vertices is different.
 
 doug
 Thank you very much for your help and for your time,
 Tanja.
 ___
 Freesurfer mailing list
 Freesurfer@nmr.mgh.harvard.edu
 https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
 
 
 
 
 -- 
 Douglas N. Greve, Ph.D.
 MGH-NMR Center
 gr...@nmr.mgh.harvard.edu
 Phone Number: 617-724-2358 
 Fax: 617-726-7422
 
 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
 FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
 
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Re: [Freesurfer] what is thalamus-proper and clusters-table related question

2011-09-02 Thread Bruce Fischl

I dint think it does, but maybe jean or David can confirm


On Sep 2, 2011, at 1:07 PM, Ritobrato Datta rida...@mail.med.upenn.edu wrote:

 Actually I have the same question - does the thalamus proper include LGN ?
 
 - Original Message -
 From: Douglas N Greve gr...@nmr.mgh.harvard.edu
 To: Tetiana Dadakova tetian...@gmail.com
 Cc: freesurfer@nmr.mgh.harvard.edu
 Sent: Friday, September 2, 2011 12:28:45 PM
 Subject: Re: [Freesurfer] what is thalamus-proper and clusters-table related 
 question
 
 I'm not sure about #1, maybe BF can chime in.
 
 Tetiana Dadakova wrote:
 Dear FS list,
 
 1. What does a label Thalamus Proper include? Is it the same as thalamus?
 
 2. After correcting for multiple comparisons, I get a table of
 clusters. I have several questions regarding this table: What do the
 columns Max, CWPLow, and CWPHigh represent? 
  1. CWP - cluster-wise pvalue. The pvalue of the cluster corrected for
 multiple comparisons
  2. CWPLow - lower 90% confidence limit of CWP based on binomial 
 distribution
  3. CWPHi  - upper 90% confidence limit of CWP based on binomial 
 distribution
 
 Regarding the NVtxs
 column: is it the number of vertexes in cluster?  
 Yes
 What kind of information can I get from this value? 
 It is not very informative so don't feel like you have to use it. It is 
 good for assuring that the software is doing the right thing.
 If two clusters have different areas but the same number of vertexes, does 
 it mean something?
 
 It means that the area of the component triangles that make up the 
 vertices is different.
 
 doug
 Thank you very much for your help and for your time,
 Tanja.
 ___
 Freesurfer mailing list
 Freesurfer@nmr.mgh.harvard.edu
 https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
 
 
 
 
 -- 
 Douglas N. Greve, Ph.D.
 MGH-NMR Center
 gr...@nmr.mgh.harvard.edu
 Phone Number: 617-724-2358 
 Fax: 617-726-7422
 
 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
 FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
 
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 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 
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 but does not contain patient information, please contact the sender and 
 properly
 dispose of the e-mail.
 
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[Freesurfer] Regarding Segmentation of Hippocampal Subfield

2011-09-02 Thread mohan boddu
Hello,

When I segmented the Hippocampal Subfields (using the process stated in
http://www.freesurfer.net/fswiki/HippocampalSubfieldSegmentation ) it
generated two files by name *posterior_Left-Hippocampus.mgz* and *
posterior_Right-Hippocampus.mgz*. I would like to know what actually are
those since they are not actual Hippocampus. When I am generating the crisp
images do I need to use those files also, if so what are the labels of those
regions.

Also, what about the  *right_alveus, right_fornix, left_alveus,
left_fornix*regions. They haven't generated in the segmentation. Is
there a way to
generate those regions also.

Any help regarding would be appreciated.

Thank you.

-- 
With Thanks  Regards,
Mohan Boddu
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Re: [Freesurfer] what is thalamus-proper and clusters-table related question

2011-09-02 Thread Douglas N Greve
I don't think it does. Jean manually labeled LGN in a few cases for me a 
few years ago, and I vaguely remember that LGN did not overlap with our 
thalamus seg (but I could be wrong).
doug

Bruce Fischl wrote:
 I dint think it does, but maybe jean or David can confirm


 On Sep 2, 2011, at 1:07 PM, Ritobrato Datta rida...@mail.med.upenn.edu 
 wrote:

   
 Actually I have the same question - does the thalamus proper include LGN ?

 - Original Message -
 From: Douglas N Greve gr...@nmr.mgh.harvard.edu
 To: Tetiana Dadakova tetian...@gmail.com
 Cc: freesurfer@nmr.mgh.harvard.edu
 Sent: Friday, September 2, 2011 12:28:45 PM
 Subject: Re: [Freesurfer] what is thalamus-proper and clusters-table related 
 question

 I'm not sure about #1, maybe BF can chime in.

 Tetiana Dadakova wrote:
 
 Dear FS list,

 1. What does a label Thalamus Proper include? Is it the same as thalamus?

 2. After correcting for multiple comparisons, I get a table of
 clusters. I have several questions regarding this table: What do the
 columns Max, CWPLow, and CWPHigh represent? 
   
  1. CWP - cluster-wise pvalue. The pvalue of the cluster corrected for
 multiple comparisons
  2. CWPLow - lower 90% confidence limit of CWP based on binomial 
 distribution
  3. CWPHi  - upper 90% confidence limit of CWP based on binomial 
 distribution

 
 Regarding the NVtxs
 column: is it the number of vertexes in cluster?  
   
 Yes
 
 What kind of information can I get from this value? 
   
 It is not very informative so don't feel like you have to use it. It is 
 good for assuring that the software is doing the right thing.
 
 If two clusters have different areas but the same number of vertexes, does 
 it mean something?

   
 It means that the area of the component triangles that make up the 
 vertices is different.

 doug
 
 Thank you very much for your help and for your time,
 Tanja.
 ___
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MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

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Re: [Freesurfer] dcm2nii and recon all

2011-09-02 Thread Alfredo Damasceno

I am also using dcm2nii and running recon-all with the original image. It is 
working ok so far.

Alfredo

 Date: Fri, 2 Sep 2011 12:30:26 -0400
 From: gr...@nmr.mgh.harvard.edu
 To: cvalen...@linkdx.com.co
 CC: freesurfer@nmr.mgh.harvard.edu
 Subject: Re: [Freesurfer] dcm2nii and recon all
 
 I have no idea, but probably the original.
 doug
 
 Carolina Valencia wrote:
  Dear FS' users,
 
  I have a 3D T1 from a GE scanner which I convert with dcm2nii to use 
  it with recon-all, but I got 3 images:
  o -- original
  oo -- orthogonal 
  co -- cropped image
 
  Which I should use to run the command recon-all?
 
  thanks!
 
  Carolina
  
 
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 Douglas N. Greve, Ph.D.
 MGH-NMR Center
 gr...@nmr.mgh.harvard.edu
 Phone Number: 617-724-2358 
 Fax: 617-726-7422
 
 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
 FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
 
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