I guess it means the surface of the whole brain, including infratentorial structures. ________________________________________ From: freesurfer-boun...@nmr.mgh.harvard.edu [freesurfer-boun...@nmr.mgh.harvard.edu] on behalf of Douglas Greve [dgr...@mgh.harvard.edu] Sent: Thursday, July 26, 2018 3:58 PM To: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] brain parenchymal fraction
you'll have to be more specific about what "brain surface contour" means. On 7/26/18 3:46 PM, Barletta, Valeria wrote: > Dear Freesurfers, > I need to extract the brain parenchymal fraction to check brain atrophy in my > patients. > The BPF is defined as "the ratio of brain parenchymal tissue volume to the > total volume contained within the brain surface contour". > In the text file aseg.stats, I found this info: > # Measure BrainSeg, BrainSegVol, Brain Segmentation Volume, 1052408.000000, > mm^3 > # Measure BrainSegNotVent, BrainSegVolNotVent, Brain Segmentation Volume > Without Ventricles, 1032104.000000, mm^3 > # Measure BrainSegNotVentSurf, BrainSegVolNotVentSurf, Brain Segmentation > Volume Without Ventricles from Surf, 1030608.836503, mm^3 > > Can I extract the BPF from those, or is any of them the BPF? > > Thank you, > Valeria > _______________________________________________ > 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 _______________________________________________ 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.
