Hi Bruce Thanks very much for your suggestion. Just one more question that I am confused with. Is the surface area calculated based on the white matter surface or pial surface ? Thanks for your time.
Best Zhiliang At 2017-08-13 22:47:07, "Bruce Fischl" <fis...@nmr.mgh.harvard.edu> wrote: >Hi Zhiliang > >the thickness is the average of the min distance from gray-to-white and >white-to-gray at each vertex. The surface area is the average area of the >triangles attached to a vertex (divided by 3 I think). > >cheers >Bruce > > >On Sun, 13 Aug 2017, Zhiliang Long wrote: > >> Dear FS experts: >> I am writting to ask for help about the computation of global mean >> thickness. On the FAQ page, one suggestion is that the global mean thickness >> is equal to the (lh.thickness*lh.surfarea + rh.thickness.rh.surfarea) / >> (lh.surfarea+rh.surfarea). I am wondering how the ?h.thickness and >> ?h.surfarea are calculated. >> Any suggestions are appreciated. >> Thanks for your time. >> >> Best >> Zhiliang Long >> >> >> >> >> >> >>
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