It could make sense to apply it to WM. CSF I'm not so sure. Are you really trying to measure the signal in CSF?
On 10/10/18 6:08 PM, David.Mackarthy wrote: > External Email - Use Caution > > Dear Dr Greve, thank you for the response > This is for a map-based study. Absolutely, this is clear, I appreciate the > response. I just have one additional question and I appreciate your patience. > > Is it recommended to apply PVC on white matter or csf? does it make sense to > apply PVC on WM and CSF? > > Thank you so much! > > > > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ > On Wednesday, October 10, 2018 2:17 PM, Greve, Douglas N.,Ph.D. > <dgr...@mgh.harvard.edu> wrote: > >> Is this for an ROI-based study or a map-based study? For ROI, we use the >> GTM, and it PV corrects for all structures (including WM and CSF). For >> map-based, we use MG. MG removes WM (and CSF) entirely. In theory, it >> can be run in a way to keep WM and throw GM and CSF away, but that is >> not implemented. Does this answer your questions? >> >> On 10/10/2018 07:31 AM, David.Mackarthy wrote: >> >>> Dear Dr Greeve, >>> I am following petsurfer pipeline to do surface based analysis of >>> PET-FDG data and I have interest in doing partial volume correction. I >>> would like to inquire about: >>> >>> 1. Can partial volume correction be applied on white mater, or just on >>> gray matter? >>> >>> 2. Can partial volume correction be applied between gray matter and CSF? >>> >>> >>> According to Muller-Gartner (MG) Method we segment the brain to >>> gray/white and csf, then we apply partial volume correction only on >>> gray matter. why not on the other parts. >>> I apologies if my question is basics and I appreciate your input. >>> Thanks for publishing this valuable manuscript >>> https://www.ncbi.nlm.nih.gov/pubmed/26915497 >>> With all respect! >>> Dev >>> >>> 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 _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
