then I would either use TRACULA (if you have DWI) or the wmparc to generate ROIs. I meant that you could count whether there are more lh or rh wm labels neighboring each one to figure out which hemi they are in

cheers Bruce

On Wed, 12 Dec 2012, Gabriel Gonzalez Escamilla wrote:

Yes I did loo at the total WH-hypointensities(77), and substract them without a problem.

What do you mean with lateralize them based on neighboring labels? How can I perform such thing on FS?

Actually I'm interested in knowing to wich specific label o region they are.

Bests, Gabriel

El 12/12/12, Bruce Fischl fischl@nmr.mgh.harvard.edu escribió: Hi Gabriel

  we don't lateralize them by default, so look for WM_hypointensities (77) instead. It would be pretty easy to
  lateralize them based on neighboring labels.

  cheers
  Bruce


  On Wed, 12 Dec 2012, Gabriel Gonzalez Escamilla wrote:

  >
  >Dear Freesurfers,
  >
  >I'm looking for a way to compute the left and right WM-hypointensities, as volume values or images. They always
  appear empty in
  >the aseg.stats, and the corresponding segs No 78 & 79 do not appear in the aseg.mgz, and I'm a bit lost with it.
  >
  >Can any one help me?
  >
  >Best Regards,
  >Gabriel.
  >
  >


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PhD. student Gabriel González-Escamilla Laboratory of Functional Neuroscience Department of Physiology, Anatomy, and Cell Biology University Pablo de Olavide Ctra. de Utrera, Km.1 41013 - Seville

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