Hi Anirudh, Lee was right. Label stats shown in freeview is for volume labels. It shows the stats of the underlying volume slice in that label. It should not be compared with surface area.
Best, Ruopeng > On Nov 11, 2015, at 5:57 AM, anirudh nihalani <anirudhnihal...@gmail.com> > wrote: > > Hi Bruce, > > Sorry I forgot to attach the files mentioned in my last email. PFA the > files here. Thank you. > > Regards, > Anirudh > > On Wed, 11 Nov 2015 at 16:18 anirudh nihalani <anirudhnihal...@gmail.com > <mailto:anirudhnihal...@gmail.com>> wrote: > Hi Bruce, > > Thank you very much for your quick reply. Sorry I hadn't been able to > reply faster as I was trying to figure out the below mentioned issue from two > days. > > I have computed surface area of left-hippocampus using the commands > mri_tessellate and mris_info. However I found that in freeview by selecting > Tools->show label stats, I am able to display area of any label (PFA a > screenshot) but these area stats do not match with the areas obtained using > mri_tessellate and mris_info. I have two queries regarding this: > > 1) Surface areas of labels displayed in freeview doesn't match with > subcortical structures' areas obtained by running mri_tesselate and > mris_info. For example the attached screenshot shows that area of > left-hippocampus is 71 mm^2 where as mri_tessellate followed by mris_info > found the area for left-hippocampus to be 3586 (PFA the output of > mris_tessellate and mris_info). Why is there a mismatch? > > 2) Based on your reply I thought area stats are not calculated for > subcortical structures during "recon-all". If that is the case, how is > freeview displaying area stats for subcortical areas? Also which file does > freeview use to display these stats? Is it stats/[l/r]h.aparc.stats? I ask > because even cortical structures' areas displayed by freeview are not > matching with what is stored in these files. > > Please let me know. Thank you. > > Regards, > Anirudh > <subcort_area.txt><freeview_labelstats.png>_______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > <https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>
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