Hi Yolanda, No. It is better to remove the two subjects. Mixing versions is never a good idea as results are expected to differ. Same is true for different acquisitions (parameters, scanners etc). If anything has to be different it needs to be asserted that it is spread equally among your groups.
Best Martin On Jun 10, 2011, at 7:16 AM, Yolanda Vives <yvi...@pic.es> wrote: > Dear Freesurfers, > > I have a dataset processed with a classical recon-all of Freesurfer v.4.3.1 > and there are two MRIs that were not segmented correctly due to the register. > After several unsuccessful attempts to improve this step using tkregister2, > finally I have successfully processed them with FS v5.0. Would it be correct > to perform a QDEC analysis to analyse cortical thickness using all my dataset > (mixing MRIs processed with FS 4.3.1 and two of them processed with FS 5.0) ? > > Thank you for your help, > Yolanda > > _______________________________________________ > 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.
