External Email - Use Caution Thanks, Professor Anastasia,
I am testing HCP data with 96 directions. There are really frequent failure for right cingulum-angular bundle and right uncinate fasciculus (more than 25%), which not happened with my own 64-direction data with Siemens Trio. Is there any known issue or recommended modification of the pipeline for HCP data or data with more directions? Bests, J. > On Nov 2, 2018, at 10:44 AM, Yendiki, Anastasia <ayend...@mgh.harvard.edu> > wrote: > > They are not random, they are 20% of the maximum value. If you want to > generate stats at a different threshold, you can find the dmri_pathstats > command line in trac-all.log and add the --pthr option (the default 20% would > be --pthr .2). > > On Nov 1, 2018 9:01 PM, June Kang <cn...@korea.ac.kr > <mailto:cn...@korea.ac.kr>> wrote: > External Email - Use Caution > > In the visualization step of Tracula processing, freeview -tv > merged_avg33_mni_bbr shows some tracts with very high threshold (i.e. 171), > which make them look like the reconstruction-failed ones. > The tracts failed to reconstruction usually show threshold of 300 (not > changeable) with tiny rounded cylinder shape. > In successfully reconstructed tracts with very high threshold, it looks ok, > when I adjust threshold to the similar value from contralateral one. > > Is there any reason for this extremely high threshold? or it’s just randomly > set values? > > Bests, > J. > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > <https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>_______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > <https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>
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