Celine - You're very welcome! If this particular motion measure is identical for pretty much all your subjects, there is no point in including it. So you can just use the other 3 motion measures.
a.y On Wed, 12 Feb 2014, Celine Louapre wrote: > Hi Anastasia > Thanks a lot for your very nice talk today. I would have another question > on top of the one below. > I have looked at the formula to calculate the total motion index, and for > the third motion parameter (percentage of slice with signal drop-out), all > subjects except 2 had a 0 value. So in the formula, I would not be able to > calculate the motion factor for this parameter because median, upper and > lower quartile are all 0, is that correct (it would make (x-0/0-0))? > Thanks for your help > Celine > >> Hi Anastasia and freesurfer experts, >> I am trying to get DTI values along the tracts as in the pathstatbyvoxel >> file, but excluding inflammatory WM lesions. I have masks of the WM >> lesions that I could apply on the DTI maps, but then how could I compute >> the DTI metrics along the tract with the exclusion of the lesion? (I guess >> the last step of trac-all -path could be applied to DTI maps that were >> masked by the lesions?) >> I would like to keep the advantage of having the DTI weighted metrics in >> particular. >> Thanks a lot for your help! >> Celine >> >> -- >> Celine Louapre, MD-PhD, >> Research Fellow at Massachusetts General Hospital >> Department of Radiology, MGH >> >> Building 149, Room 2301 >> 13th Street >> Charlestown, MA 02129 >> _______________________________________________ >> 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 > > > _______________________________________________ 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.
