Yes, if you wanted to do a weighted average of your measure. Or you could just theshold and binarize path.pd and use it a simple ROI to do an unweighted average.
On Thu, 28 Jun 2012, Minjie Wu wrote: > Dear Dr. Yendiki, > > Thank you very much for your quick response. To calculate the weighted > DTI measure, per your previous emails, we would need to normalize > path.pd.nii.gz, right? If this is the case, we could use the following > equation correct for weighted measurement: > > dti_para (DTI parameter image) > path_pd (path.pd.nii.gz) > > sum(dti_para.*path_pd))/sum(path_pd) > > Thank you very much. > > Minjie > > > > > On Thu, Jun 28, 2012 at 11:05 AM, Anastasia Yendiki > <ayend...@nmr.mgh.harvard.edu> wrote: >> >> Hi Minjie - These commonly used measures are provided for your convenience. >> You can always use the reconstructed path distribution volume >> path.pd.nii.gz, thresholded or not, as a mask to average your measurement of >> choice. >> >> a.y >> >> >> On Thu, 28 Jun 2012, Minjie Wu wrote: >> >>> Dear TRACULA Developer & User, >>> >>> I am wondering if it is possible to add other DTI measurements to the >>> pathstats.overall.txt along with those DTI parameters already included >>> (FA, MD, AD, RD)? >>> >>> Thank you very much. >>> Minjie >>> _______________________________________________ >>> 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
