Hi, Just want to bump this to the top now that the weekend is over!
Thanks for any insights about the CSF estimation, Adam On Fri, Oct 21, 2016 at 1:03 PM, Adam Martersteck <acmar...@gmail.com> wrote: > Thanks for replying Doug, > > Yes, I would like to use my own mask if the choroid plexus is included but > *only* for Tau PET. There is high off-target binding of the new tau PET > ligand AV1451 (formerly called T807) in choroid plexus. I wanted to avoid > that high signal when estimating CSF. > > I think choroid plexus being included for all the other types of PET I > plan on using (FDG or amyloid PET) is great -- because it bridges the > ventricles at the septum pellucidum (intended or not) -- and makes the > erosion of 3mm much less 'harsh' because it's eroding from a connected mass > of 1 segmentation instead of two independent segmentations (left and right > ventricles). > > if choroid plexus is not included -- then no worries, I'll continue using > it for AV1451 Tau PET just like for amyloid and FDG PET as planned. If it > is -- is there a way to expose the CSF estimation in the script so that I > could input my own estimation (just the ventricles)? > > Thanks! > Adam > > On Thu, Oct 20, 2016 at 3:24 PM, Douglas N Greve < > gr...@nmr.mgh.harvard.edu> wrote: > >> What do you mean? You have your own CSF segmentation and you want to use >> that instead of the one created by gtmseg? >> >> >> >> On 10/20/2016 11:32 AM, Adam Martersteck wrote: >> > Hi FreeSurfer team, >> > >> > Hopefully Doug or someone familiar with the new PET PVC implementation >> > can answer a few things I can't seem to find on >> > http://surfer.nmr.mgh.harvard.edu/fswiki/PetSurfer or either of Doug's >> > PVC publications (2013 or 2016). >> > >> > 1) Is the choroid plexus included in the binarized then 3mm eroded >> > segmentation to find the mean ventricular CSF signal? >> > >> > 2) Is there a way to input my own estimation of ventricular CSF signal >> > to mri_gtmpvc? >> > >> > Thanks! >> > Adam >> > >> > >> > _______________________________________________ >> > 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: https://gate.nmr.mgh.harvard.edu/filedrop2 >> www.nmr.mgh.harvard.edu/facility/filedrop/index.html >> Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ >> >> _______________________________________________ >> 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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