Thanks Bruce and Douglas! Andreia
Citando Douglas N Greve <gr...@nmr.mgh.harvard.edu>: > mri_compute_volume_fractions will compute the fractions for each of > the tissue types, no need to alter the segmentations. > doug > > > > Bruce Fischl wrote: >> Hi Andreia >> >> you could certainly change our segmentation labels to just these 3 >> classes easily enough in matlab. Then we have tools for computing >> partial volume fractions (I think mri_compute_volume_fractions) >> >> cheers >> Bruce >> >> >> On Wed, 28 Sep 2011, _andre...@sapo.pt wrote: >> >> >>> Hello list, >>> >>> Following this email that I found in the archives: >>> >>> >>> "(...) >>> For the segmentation, FS still works voxelwise, but it's objective is >>> to identify each structure as a whole, whereas SPM and FSL/FAST >>> attempt to classify each voxel as being GM, WM or CSF. A short >>> description of the method in FS is here: >>> http://surfer.nmr.mgh.harvard.edu/fswiki/FreeSurferAnalysisPipelineOverview#TheVolume-based.28Subcortical.29Stream >>> You may want also to have a look at this >>> paper: >>> http://dx.doi.org/10.1016/S0896-6273(02)00569-X >>> >>> Hope this helps! >>> >>> All the best, >>> >>> Anderson" >>> >>> I need to obtain the different % of tissue (GM, WM and CSF) inside one >>> defined voxel. Does FS has a file that can be exported to Matlab to >>> then get these values? Or only FSL/FAST and SPM have this type of info? >>> >>> Thanks! >>> Andreia >>> _______________________________________________ >>> Freesurfer mailing list >>> Freesurfer@nmr.mgh.harvard.edu >>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >>> >>> >>> >>> >> _______________________________________________ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> > > -- > Douglas N. Greve, Ph.D. > MGH-NMR Center > gr...@nmr.mgh.harvard.edu > Phone Number: 617-724-2358 Fax: 617-726-7422 > > Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting > FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html > > > > 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
