hi Xiaomin, 7T data can sometimes cause Talairach failures with the standard registration tools due to the strong bias fields. the Talairach transformation is used for identifying seed points, and the -use-mritotal flag just specifies that the MINC software will be used for the Talairach'ing.
see this page for more info: http://freesurfer.net/fswiki/talairach?highlight=%28use%5C-mritotal%29 -jon On Fri, 28 Mar 2014, Xiaomin Yue wrote: > > I tried to do surfer reconstruction (version 5.3) collected in SIEMENS > 7T, with error: imgreg_4dfp > /opt/freesurfer-530/average/711-2C_as_mni_average_305 > /opt/freesurfer-530/average/711-2B_as_mni_average_305_mask talsrcimg_g11 > none talsrcimg_to_711-2C_as_mni_average_305_t4 1283' failed! status=254. > This seems happened for many others. However, the reconstruction worked > fine as using data collected from 3T, which means the freesurfer was > installed correct, and environment settings are correct as well. Also, > the reconstruction on the 7T data can go through using additional > parameter: -use-mritotal. My question is how the -use-mritotal > parameter would affect final surface? > Thanks for providing your input on this. > Xiaomin Yue > _______________________________________________ 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.
