Hi Jon - I mean concatenating them: mri_concat --i dwi1.nii.gz dwi2.nii.gz --o dwi.nii.gz cat bvecs1.txt bvecs2.txt > bvecs.txt cat bvals1.txt bvals2.txt > bvals.txt
Make sure though this doesn't leave any blank lines in between the two sets of bvecs/bvals in the concatenated text files. Hope this helps, a.y On Tue, 5 Mar 2013, Jon Wieser wrote: > HI Anastasia, > The two data sets have the same bvecs table, but the bvals differ, one set is > 800 and the other is 1000. > can you be more specific as to how I would merge the two datasets? or you > talking about putting all the > dicom files from both sets into one directory, or do you mean something else? > we have one anatomical set > > Jon > > ----- Original Message ----- > From: "Anastasia Yendiki" <ayend...@nmr.mgh.harvard.edu> > To: "Jon Wieser" <wie...@uwm.edu> > Cc: "freesurfer" <freesurfer@nmr.mgh.harvard.edu> > Sent: Monday, March 4, 2013 5:17:31 PM > Subject: Re: [Freesurfer] processing 2 dti's from 1 experiment > > > Hi Jon - You can try merging the DWIs, gradient tables, and b-value files > from the 2 scans and specifying the merged version in the config file as > if this were a single scan. I haven't tried this myself, so do let me know > if this works! > > If in addition to 2 DWIs you also had 2 anatomicals, you could try the new > longitudinal option, which reconstructs tracts from multiple data sets at > once. With only one anatomical, this would require some mild hacks but > could still be done in principle (again, never tried it). > > Or you could try quantifying which of the two DWI scans has the least > motion of the 2 and only use that one. > > Hope this helps, > a.y > > On Mon, 4 Mar 2013, Jon Wieser wrote: > >> hello, >> >> we have acquired dti scans on a subject during a FMRI experiment. is it >> possible to process both dti's with tracule to get an average of the 2 dti's? >> If so, how do I setup the config file for this? >> Thanks >> Jon >> _______________________________________________ >> 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
