Dear Bruce,
Once again many thanks for helping.I am not using tracula. I used the dt_recon and I have done the registration for my FA data on the cvs space using the mri_cvs_register. I used the GLM group analysis method after I concatenate FA from individuals into one file and used
mri_glmfit-sim \ --glmdir Group_Analysis.glmdir \ --grf 2 neg \ --cwpvalthresh .025 \ --overwrite
to cache the significant clusters after multiple comparisons so I have the uncorrected and corrected significant map but I don't know how I can see if my FA is increasing or decreasing in controls group versus patients group.
Please advise me.
Thank you. Antonella
________________________________ From: Bruce Fischl fischl@nmr.mgh.harvard.edu To: Antonella Kis atorok9@yahoo.com Sent: Wednesday, January 11, 2012 11:40 AM Subject: Re: [Freesurfer] Non_FA Group study
Hi Antonella,
can you post this type of question to the list so that others can answer? Do you mean a map across space or within each of the tracula fascicles?
cheers Bruce
On Wed, 11 Jan 2012, Antonella Kis wrote:
Dear Bruce,
Many thanks for your reply and your help.
I will be very grateful if you can give some advise on how I can do a comparison between two groups for my FA data or in other words for FA group analysis since from the significant map I can only find the p values how can I see if there is an increase or decrease of the FA values for controls versus patients?
Many thanks, Antonella
From: Bruce Fischl fischl@nmr.mgh.harvard.edu To: Antonella Kis atorok9@yahoo.com Cc: "freesurfer@nmr.mgh.harvard.edu" freesurfer@nmr.mgh.harvard.edu; "lzollei@nmr.mgh.harvard.edu" lzollei@nmr.mgh.harvard.edu Sent: Wednesday, January 11, 2012 11:13 AM Subject: Re: [Freesurfer] Non_FA Group study
sure, that should be straightforward.
cheers Bruce On Wed, 11 Jan 2012, Antonella Kis wrote:
Dear FS team,
Can use my results from the mri_cvs_register to do a non_FA group
analysis,
more exactly I am interested on the mean diffusivity (adc.nii from dt_recon).
Since from the significant map I can only find the p values how can I see
if
there is an increase or decrease of the FA values or how can I do an FA comparison between two groups?
Thank you very much for your time and help. Antonella
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Dear Bruce,
Once again many thanks for helping.I am not using tracula. I used the dt_recon and I have done the registration for my FA data on the cvs space using the mri_cvs_register. I used the GLM group analysis method after I concatenate FA from individuals into one file and used
mri_glmfit-sim \ --glmdir Group_Analysis.glmdir \ --grf 2 neg \ --cwpvalthresh .025 \ --overwrite
to cache the significant clusters after multiple comparisons so I have the uncorrected and corrected significant map but I don't know how I can see if my FA is increasing or decreasing in controls group versus patients group.
Please advise me.
Thank you. Antonella
Dear Bruce,
Once again many thanks for helping.I am not using tracula. I used the dt_recon and I have done the registration for my FA data on the cvs space using the mri_cvs_register. I used the GLM group analysis method after I concatenate FA from individuals into one file and used
mri_glmfit-sim \ --glmdir Group_Analysis.glmdir \ --grf 2 neg \ --cwpvalthresh .025 \ --overwrite
to cache the significant clusters after multiple comparisons so I have the uncorrected and corrected significant map but I don't know how I can see if my FA is increasing or decreasing in controls group versus patients group.
Please advise me.
Thank you. Antonella
Hi Antonella
I think this is a question for Doug.
cheers Bruce On Thu, 12 Jan 2012, Antonella Kis wrote:
Dear Bruce,
Once again many thanks for helping.I am not using tracula. I used the dt_recon and I have done the registration for my FA data on the cvs space using the mri_cvs_register. I used the GLM group analysis method after I concatenate FA from individuals into one file and used
mri_glmfit-sim \ --glmdir Group_Analysis.glmdir \ --grf 2 neg \ --cwpvalthresh .025 \ --overwrite
to cache the significant clusters after multiple comparisons so I have the uncorrected and corrected significant map but I don't know how I can see if my FA is increasing or decreasing in controls group versus patients group.
Please advise me.
Thank you. Antonella
freesurfer@nmr.mgh.harvard.edu
-
Antonella Kis -
Bruce Fischl