Re: [Freesurfer] TR: FreeSurfer : About ROI analysis

2017-04-10 Thread Douglas N Greve 
Yes you can do that correlation. Is that your only question?


On 04/10/2017 09:59 AM, Lisa Delalande wrote:
> Hello Doug,
>
> Yes this mail was quite difficult to write, so I resume :
> First, I did a thickness analysis on Freesurfer
> Then, with the clusters found, I draw  ROIs and extracted the 
> statistical values (command : creation of .label and 
> mris_anatomical_stats-l..label-t rh.thickness-b-f 
> .../stats/...stats rh). Finally, I made correlations and multiple 
> regressions (with the values for thickness but also surface area, 
> volume, meancurv obtained via the command above) on the software "R". 
> I only found a significant correlation with the surface.
> My question is: can I correlate a behavioral score with SURFACE values 
> when I found these values thanks to a THICKNESS analysis?
>
> I hope it's clearer,
> If not do not hesitate to ask me again,
> Thanks in advance.
>
> Marine
> 
> *De :* Lisa Delalande 
> *Envoyé :* vendredi 31 mars 2017 11:42
> *À :* Freesurfer support list
> *Objet :* RE: [Freesurfer] FreeSurfer : About ROI analysis
> Hello Doug,
>
> Yes this mail was quite difficult to write, so I resume :
> First, I did a thickness analysis on Freesurfer
> Then, with the clusters found, I draw  ROIs and extracted the 
> statistical values (command : creation of .label and 
> mris_anatomical_stats-l..label-t rh.thickness-b-f 
> .../stats/...stats rh). Finally, I made correlations and multiple 
> regressions (with the values for thickness but also surface area, 
> volume, meancurv obtained via the command above) on the software "R". 
> I only found a significant correlation with the surface.
> My question is: can I correlate a behavioral score with SURFACE values 
> when I found these values thanks to a THICKNESS analysis?
>
> I hope it's clearer,
> If not do not hesitate to ask me again,
> Thanks in advance.
>
> Marine
> 
>
>
>
> 
> *De :* freesurfer-boun...@nmr.mgh.harvard.edu 
>  de la part de Douglas Greve 
> 
> *Envoyé :* mardi 28 mars 2017 16:58
> *À :* freesurfer@nmr.mgh.harvard.edu
> *Objet :* Re: [Freesurfer] FreeSurfer : About ROI analysis
>
> Hi Marine, I'm having a hard time following what you are trying to do. 
> It sounds like you have done a thickenss analysis where you have found 
> some clusters, but after that I'm not sure what you are asking. Please 
> elaborate.
>
> doug
>
>
> On 3/28/17 6:07 AM, Lisa Delalande wrote:
>>
>> Hello,
>>
>> As a PhD student, I often use Freesurfer software and more precisely 
>> QDEC. A great question arises in connection with my last work. After 
>> drawing ROIs, I extricated values thanks to a " .levels" and a 
>> creation of a "stat" folder for each participant (aparcstat2table).
>>
>> My question is : can I make a correlation between a behavioral score 
>> and the value of "average SURFACE" obtained for each participant 
>> thanks to the command above-mentioned considering that my ROI has 
>> been drawn from clusters detected with a correlational analysis 
>> between THICKNESS (and not surface) and a behavioral score on QDEC ?
>>
>> Many thanks in advance for your assistance, and I am looking forward 
>> to hearing from you.
>>
>> Marine
>>
>>
>> ___
>> 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

-- 
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: https://gate.nmr.mgh.harvard.edu/filedrop2
www.nmr.mgh.harvard.edu/facility/filedrop/index.html
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[Freesurfer] TR: FreeSurfer : About ROI analysis

2017-04-10 Thread Lisa Delalande 
Hello Doug,

Yes this mail was quite difficult to write, so I resume :
First, I did a thickness analysis on Freesurfer
Then, with the clusters found, I draw  ROIs and extracted the statistical 
values (command : creation of .label and mris_anatomical_stats-l..label-t 
rh.thickness-b-f .../stats/...stats rh). Finally, I made correlations and 
multiple regressions (with the values for thickness but also surface area, 
volume, meancurv obtained via the command above) on the software "R". I only 
found a significant correlation with the surface.

My question is: can I correlate a behavioral score with SURFACE values when I 
found these values thanks to a THICKNESS analysis?

I hope it's clearer,
If not do not hesitate to ask me again,
Thanks in advance.

Marine


De : Lisa Delalande 
Envoyé : vendredi 31 mars 2017 11:42
À : Freesurfer support list
Objet : RE: [Freesurfer] FreeSurfer : About ROI analysis


Hello Doug,

Yes this mail was quite difficult to write, so I resume :
First, I did a thickness analysis on Freesurfer
Then, with the clusters found, I draw  ROIs and extracted the statistical 
values (command : creation of .label and mris_anatomical_stats-l..label-t 
rh.thickness-b-f .../stats/...stats rh). Finally, I made correlations and 
multiple regressions (with the values for thickness but also surface area, 
volume, meancurv obtained via the command above) on the software "R". I only 
found a significant correlation with the surface.

My question is: can I correlate a behavioral score with SURFACE values when I 
found these values thanks to a THICKNESS analysis?

I hope it's clearer,
If not do not hesitate to ask me again,
Thanks in advance.

Marine





De : freesurfer-boun...@nmr.mgh.harvard.edu 
 de la part de Douglas Greve 

Envoyé : mardi 28 mars 2017 16:58
À : freesurfer@nmr.mgh.harvard.edu
Objet : Re: [Freesurfer] FreeSurfer : About ROI analysis


Hi Marine, I'm having a hard time following what you are trying to do. It 
sounds like you have done a thickenss analysis where you have found some 
clusters, but after that I'm not sure what you are asking. Please elaborate.

doug

On 3/28/17 6:07 AM, Lisa Delalande wrote:

Hello,

As a PhD student, I often use Freesurfer software and more precisely QDEC. A 
great question arises in connection with my last work. After drawing ROIs, I 
extricated values thanks to a " .levels" and a creation of a "stat" folder for 
each participant (aparcstat2table).

My question is : can I make a correlation between a behavioral score and the 
value of "average SURFACE" obtained for each participant thanks to the command 
above-mentioned considering that my ROI has been drawn from clusters detected 
with a correlational analysis between THICKNESS (and not surface) and a 
behavioral score on QDEC ?



Many thanks in advance for your assistance, and I am looking forward to hearing 
from you.



Marine



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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 error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.