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 ayendiki@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
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