Hi Veena,
On Wed, 27 May 2009 23:52:28 +0100, Veena Nair <[log in to unmask]> wrote:
>Hello.
>What would be the best way to use lesion masks while doing VBM5? The
>patients in my sample have lesions in different areas. I have created ROI
>masks for these lesions (voxels within the region of lesion have intensity
>1). Would it be reasonable to use these as masks in
>VBM5.1/Estimate&Write/Masking Image?
Yes, you need to define for each subject one mask image, which is in the same space like
the T1-image.
>
>If yes, how do I go about entering these files? I have say 5 controls and 5
>patients; if I need to enter the mask-files in the same order as my
>patients, what do I do for the first 5 control subjects?
You have to segment the patient data separetely and define 5 mask images in the same
order. The control data are segmented without mask.
Regards,
Christian
--
____________________________________________________________________________
Christian Gaser, Ph.D.
Assistant Professor of Computational Neuroscience
Department of Psychiatry
Friedrich-Schiller-University of Jena
Jahnstrasse 3, D-07743 Jena, Germany
Tel: ++49-3641-934752 Fax: ++49-3641-934755
e-mail: [log in to unmask]
http://dbm.neuro.uni-jena.de
>
>Thanks in advance!
>
>Veena.
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