Dear Bruce Fischl, Thank you for your help.
Best Regards, Han Byul Cho On Fri, Sep 16, 2016 at 8:27 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu> wrote: > Hi Han > > the ?h.curv files are the mean curvature of the white matter surface with > a Gaussian smoothing kernel applied to it over space. The ?h.curv.pial is > the same thing for the pial surface. The ?h.inflated.H is the (unsmoothed) > curvature of the inflated surface, and the ?h.inflated.K is the same but > Gaussian curvature. > > > cheers > Bruce > > > On Fri, 16 Sep 2016, Hanbyul Cho wrote: > > Dear Bruce Fischl, >> >> Thank you for your explanation. >> >> I think I could not yet fully understand the 'curv' files. >> After processed this command, >> recon-all -s <subject> -i <input file> -all >> >> the output files were follow as, >> surf/?h.curv >> surf/?h.curv.pial >> surf/?h.inflated.H >> surf/?h.inflated.K >> >> I wonder all these output files contained 'spatially smoothed mean >> curvature'. >> >> Could I know that the meaning of 'spatially smoothed' ? >> Are these output files difference from the output of 'mris_curvature' >> command? >> >> >> I saw the values that >> stats/?h.aparc.stats and >> stats/?h.aparc.a2009s.stats >> contained the 'integrated rectified Mean curvature' and 'integrated >> rectified Gaussian curvature'. >> >> I wonder these values were if the average curvature of vertices in each >> region, or other computed values using different atlas parcellation level. >> >> I appreciate your help. >> >> Best Wishes, >> >> Han. >> >> On Fri, Sep 16, 2016 at 4:37 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu >> > >> wrote: >> Hi Han >> >> the files ?h.curv contain the spatially smoothed mean curvature. >> You can compute the mean or Gaussian (or principal) curvatures >> of any surface using the mris_curvature command. >> >> cheers >> Bruce >> >> >> >> >> On Fri, 16 Sep 2016, Hanbyul Cho wrote: >> >> Dear FreeSurfer Team, >> >> >> I heard that FreeSurfer could calculate the Gaussian >> curvature and Mean >> curvature by vertex level. >> >> Do the computed curvature values be saved as the >> subject/surf/lh.curv or >> rh.curv files? >> >> >> When I prepared the generated mass-univariate data, >> I used the mris_preproc >> with [--meas curv] option, not [--meas thickness]. >> >> mris_preproc --qdec-long qdec.table.dat --target >> study_average --hemi lh >> --meas curv--out lh.curv.mgh >> >> I wonder this option is right usage to analyze the >> cortical curvature. And I >> wonder the 'curv' is what specific value is meaning. >> >> >> If I want to designate the specific curvature >> values(Gaussian or Mean >> curvature ) to analyze by vertex level, how can I >> use the [--meas] option? >> >> >> Thank you, >> >> Best wishes, >> >> Han. >> >> >> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> The information in this e-mail is intended only for the person to whom >> it is >> addressed. If you believe this e-mail was sent to you in error and the >> e-mail >> contains patient information, please contact the Partners Compliance >> HelpLine at >> http://www.partners.org/complianceline . If the e-mail was sent to you >> in error >> but does not contain patient information, please contact the sender >> and properly >> dispose of the e-mail. >> >> >> >> > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > The information in this e-mail is intended only for the person to whom it > is > addressed. If you believe this e-mail was sent to you in error and the > e-mail > contains patient information, please contact the Partners Compliance > HelpLine at > http://www.partners.org/complianceline . If the e-mail was sent to you in > error > but does not contain patient information, please contact the sender and > properly > dispose of the e-mail. > >
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