Hi all, Ah, good to know that there is a Talairach accuracy problem. What have other groups been doing about this? Do you think it makes sense to manually edit much of our data? From what we've seen so far (registering to ages 3-9 so more errors expected) about 25% of our data have the registration sufficiently far off to push the TARGET volume (our subject's volume and the green lines in the pictures http://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/Talairach) outside of the skull. Thanks, -Eric
On Wed, Oct 10, 2012 at 3:26 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu>wrote: > I think 5.1 specifically has a problem with Talairach accuracy (is that > right Nick?). Should be much better with the next release > > On Wed, 10 Oct 2012, Eric Cunningham wrote: > > Hi Bruce, >> I am running version 5.10 >> Thanks, >> -Eric >> >> On Wed, Oct 10, 2012 at 3:13 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu >> > >> wrote: >> Hi Eric >> >> what version are you running? >> Bruce >> On Wed, 10 Oct 2012, Eric Cunningham wrote: >> >> Greetings, >> >> I am trying to determine how bad a talairach.xfm >> registration has to be to >> warrant a manual edit. I have found that even minor >> edits can have >> noticable (9%) effects on major subcortical volumes >> (such as thalamus or >> hippocampus). Very few registrations seem to have >> completely failed, but >> most seem like they could be made better by a tweak >> here or there. At what >> point would I just be adding randomness by manually >> editing? >> >> About what percent of a given dataset would you >> expect to manually edit? >> >> Much appreciated, >> -Eric Cunningham >> >> >> >> >> 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<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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