Re: [Freesurfer] Creating group average ROI

2013-11-05 Thread Miggy Chuapoco
Hi Bruce, The ROIs all on different subjects, but we've been able to put them all onto an average surface that we made using make_average_surface (using mri_label2label as explained in my previous email). We were hoping that now that they're all on a common average subject that we could some how m

Re: [Freesurfer] Creating group average ROI

2013-11-04 Thread Douglas Greve
I would convert them to a binary mask (0,1) then average the masks together. Each vertex would then be the "probability" that a given vertex was in the ROI. You can convert the label to a binary mask with a second call to mri_label2label (--outmask option) doug On 11/4/13 8:47 PM, Miggy Ch

Re: [Freesurfer] Creating group average ROI

2013-11-04 Thread Bruce Fischl
Hi Miggy Are the ROIs on different subjects? Do you have surfaces reconstructed for each of them? cheers Bruce On Mon, 4 Nov 2013, Miggy Chuapoco wrote: Hi all,  We have ROIs (defined in mrVista) that we converted to label files and would like to now make an average ROI. Does a pipeline

[Freesurfer] Creating group average ROI

2013-11-04 Thread Miggy Chuapoco
Hi all, We have ROIs (defined in mrVista) that we converted to label files and would like to now make an average ROI. Does a pipeline exist that will help us create an average ROI composed of these label files. We were thinking of using mri_label2label to register the ROIs to a common surface but