[Freesurfer] Resting State Networks on Cortical Surface

2014-03-02 Thread Xuelong Zhao




Hi, 

I am trying to display the 20 ICA components in this nifti file

http://brainmap.org/icns/maps.zip

onto anatomical template they've provided here

http://brainmap.org/icns/colin_tlrc_1x1x1.nii

My question is:

How do I extract only the cortical surface from the anatomical template and 
overlay
it with only parts of each ICA component that intersects with the surface?


Thanks!


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Re: [Freesurfer] longitudinal process

2014-03-02 Thread Martin Reuter
Hi Anna,
No, you can still use links. When rerunning the base, the cross are not 
changed. Once the base loiks good, you also have to rerun the longs of course.

Best Martin


Sent via my smartphone, please excuse brevity.

 Original message 
From: Anna Jonsson ajonsso...@gmail.com 
Date:03/02/2014  5:27 AM  (GMT-05:00) 
To: Martin Reuter mreu...@nmr.mgh.harvard.edu 
Cc: freesurfer@nmr.mgh.harvard.edu 
Subject: Re: [Freesurfer] longitudinal process 

Hi thank you for reply. May I ask other question; after editing the base it 
says to reocnstruct with recon-all -base -tp1 -tp2 etc. Does this require that 
all scans are located in the same directory? (Before i used symbolic links as 
scans are in different directories) but i am unsure whether after editing the 
abse anything further is actually done to the cross runs?

Thank you for your help,

Anna


On Tue, Feb 18, 2014 at 7:58 PM, Martin Reuter mreu...@nmr.mgh.harvard.edu 
wrote:
Hi Anna,

the linear mixed effects models can include subjects with a single time point 
and it would be a shame to drop that information. That is why we modified the 
longitudinal pipeline (use 5.3) to allow processing of subjects with a single 
time point. However, it is necessary that these images undergo the same 
processing steps as the rest of the data (to avoid bias). So you run it exactly 
as other subjects, with a cross sectional, -base and a -long step:

recon-all -all -s tp1id -i path_to_tp1_dcm
recon-all -base templateid -tp tp1id -all
recon-all -long tp1id templateid -all

Best, Martin


On 02/18/2014 04:58 AM, Anna Jonsson wrote:
Dear Freesurfer experts,

I want to know if possible when doing longitudinal stream to put subjects with 
only one time-point through the processing (eg base and long runs) in order to 
subsequently use with the Matlab lme tools? Or better is to leave them out and 
only do those with 2+ times?

Thank you 

Kind Regards,

Anna


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Assistant in Neuroscience - Massachusetts General Hospital
Instructor in Neurology   - Harvard Medical School
MGH / HMS / MIT

A.A.Martinos Center for Biomedical Imaging
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Charlestown, MA 02129

Phone: +1-617-724-5652
Email: 
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   reu...@mit.edu
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[Freesurfer] asegstats2table error

2014-03-02 Thread sabin khadka
Hi all,
While using asegstats2table, I got following error for few subjects,
WARN SUBID: nmeasure 66, expecting 55
It let me extract cortical thickness and surface area using aparcstats2table 
though.
Any suggestions?

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Re: [Freesurfer] asegstats2table error

2014-03-02 Thread Douglas Greve


That means that it was expecting to find 66 segmentations but only found 
55. Sometimes there are some segmentations in one subject that are not 
in another (usually hypointensities). But 11 is too many. Have you 
looked at the aseg to see if it looks right? You can also compare the 
aseg.stats file to see which segs are missing.

doug


On 3/2/14 9:46 AM, sabin khadka wrote:

Hi all,
While using asegstats2table, I got following error for few subjects,
WARN SUBID: nmeasure 66, expecting 55
It let me extract cortical thickness and surface area using 
aparcstats2table though.

Any suggestions?

-SABIN


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[Freesurfer] WM vol as measure

2014-03-02 Thread Yang, Daniel
Dear FreeSurfer Experts,

FS provides thickness as the DV in qdec and mri-glmfit. Do you know how I can 
have WM vol as the DV in these tools with the same GLM model? For example, I 
want to test the WM regions that is most strongly positively correlated with a 
given factor.

Thanks!
Daniel
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Re: [Freesurfer] WM vol as measure

2014-03-02 Thread Yang, Daniel
Hi FreeSurfers,

A related question (I can't find the answers on the FS website): what's 
jacobian_white (as a measure)?

Thanks!
Daniel

--
Daniel (Yung-Jui) Yang, Ph.D.
Postdoctoral Researcher
Yale Child Study Center
New Haven, CT
Tel: (203) 737-5454
E-mail: yung-jui.y...@yale.edu

On 3/2/14 7:18 PM, Yang, Daniel 
yung-jui.y...@yale.edumailto:yung-jui.y...@yale.edu wrote:

Dear FreeSurfer Experts,

FS provides thickness as the DV in qdec and mri-glmfit. Do you know how I can 
have WM vol as the DV in these tools with the same GLM model? For example, I 
want to test the WM regions that is most strongly positively correlated with a 
given factor.

Thanks!
Daniel
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