Re: [Freesurfer] PET surface sampling

2016-08-26 Thread Jonathan DuBois
Hi Doug, Thank you. I ran sampled the data and ran mri_glmfit as you suggested, although the resulting bp file seems to only have binary clusters (in the attached image the red cluster all have a value of 1 and everywhere else is 0). Is this the normal output? I expected a more varying map.

Re: [Freesurfer] PET surface sampling

2016-08-24 Thread Douglas N Greve
Sample the raw TAC data onto the surface (and not the BPs), then smooth on the surface, then run the mrtm2 with all the same arguments except use the surface data as the input (--y) instead of the ROI data. On 08/23/2016 05:13 PM, Jonathan DuBois wrote: > Hi, > > I’m trying to use the PETsurfer

[Freesurfer] PET surface sampling

2016-08-23 Thread Jonathan DuBois
Hi, I’m trying to use the PETsurfer Pipeline to perform BP analysis, but I’m not sure at which point in the pipeline to sample the data to the surface and what registration to use? I tried running the pipeline using dynamic kinetic modeling as described here: http://surfer.nmr.mgh.harvard.ed