Hi Bruce, thank for new 5.3. I'm finishing tracula analyis with 5.2 (I only have a subject that give me some problem). Do you advice me to cancel my analysis and re-run it by new version 5.3? Is the results obtained with version 5.2 reliable? Thank you very much,
Stefano ----Messaggio originale---- Da: fis...@nmr.mgh.harvard.edu Data: 4-mag-2013 14.55 A: <lukas.sch...@ukb.uni-bonn.de> Cc: <freesurfer@nmr.mgh.harvard.edu> Ogg: Re: [Freesurfer] version 5.3 coming out soon Hi Luke Nick will post a command line you can run that should take about 2 hours/dataset. Rerunning shouldn't be necessary. Sorry for the trouble, I really, really wish we had more engineering resources. Bruce On Sat, 4 May 2013, lukas.sch...@ukb.uni-bonn.de wrote: > > Hi Bruce, > > Thanks a lot for the info. Would it mean we have to completely reprocess the > data processed with 5.2? Or at which point of the preprocessing pipeline we > should step in to fix the problems of 5.2...? I just have finished to > process about 200 data sets with 5.2... > > Best wishes, > > Luke > > Am 03.05.2013 um 02:58 schrieb "Bruce Fischl" <fis...@nmr.mgh.harvard.edu>: > > > Hi All, > > > > We have recently uncovered problems with version 5.2. Based on these > > problems, we are recommending that people stop using 5.2, mainly in > > regards to usage of the surface data. A new version, 5.3, will be > > released within two weeks, and a beta version for each platform will be > > available within a couple days. > > > > There were two main problems that were uncovered. First, a change was made > > that was only meant to affect the white surface placement in > > high-resolution data sets, but unfortunately is being applied to all data > > sets. This causes the white surface to contract a small amount. This > causes > > the surface area to be smaller and cortex to be measured as thicker > > relative to version 5.1. Visually, the surfaces do not necessarily look > > less accurate, but we feel that the systematic differences with previous > > versions are ill-advised without a clear reason for the change. > > > > Second, a change made to the placement of the pial surface in order to > > improve the positioning based on T2/FLAIR that caused it to extend too far > > in some data sets during the T1-based pial surface deformation. This > > unfortunately became the default behavior, which was not intended. None of > > the dozens of test data sets we ran displayed this problem. The behavior > > was reported by other users which led us to the bug. > > > > In general, we rigorously test each version. However, our systematic > > comparison of a new version with previous versions which would have caught > > these problems was conducted prior to these changes. We are now tightening > > and regimenting our testing procedures to ensure this doesnt happen again. > > Note that there are no problems with the volumetric segmentation (aseg) > > in version 5.2. > > > > We realize that this will cause a substantial inconvenience for users. We > > have isolated and fixed the problems and have run two rounds of alpha > > testing and have one more to go, after which we will release a beta > version > > in a couple of days to anyone that wants it. > > > > sorry for the problems. > > > > Bruce > > _______________________________________________ > > 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. > > > > >_______________________________________________ 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.
_______________________________________________ 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.
