Re: [Freesurfer] Projecting subcortical ROI to the cortical surface

2019-05-15 Thread Greve, Douglas N.,Ph.D.
You can convert the ROI into a label (mri_vol2label), then "paint" the label onto the nearest cortex using mri_label2label with the --paint option. dmax controls the maximum distance, so you'll need to set that pretty large. You can then load the label onto the surface to see where it landed.

Re: [Freesurfer] Projecting subcortical ROI to the cortical surface

2019-05-15 Thread Bruce Fischl
Hi Ryan do you have diffusion data? You could use tracula and find the cortical ROI(s) that are most likely the end points of that bit of white matter. cheers Bruce On Wed, 15 May 2019, Nillo, Ryan Michael R wrote: External Email - Use Caution Hi Bruce, We want to study

Re: [Freesurfer] Projecting subcortical ROI to the cortical surface

2019-05-15 Thread Nillo, Ryan Michael R
External Email - Use Caution Hi Bruce, We want to study whether or not presence of periventricular heterotopias affect the thickness, volume, or surface area of the nearest cortical ROI. Since the condition we are studying is caused by failure of neurons to migrate to the corte

Re: [Freesurfer] Projecting subcortical ROI to the cortical surface

2019-05-15 Thread Bruce Fischl
Hi Ryan I don't think projection of that kind of ROI is well-posed. Different parts of it are probably closest to wildly different parts of cortex. What are you trying to acheive? cheers Bruce On Wed, 15 May 2019, Nillo, Ryan Michael R wrote: External Email - Use Caution