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Hello Petsurfers! A few of my subjects ended up with vertices that had outlier PET values after I followed the PetSurfer steps. Most of the binding potentials are in the range of 0 - 3. Looking at the histogram though there are a couple of vertices with values around -30. First of all how can I deal with this? Can these voxels be excluded from the data, and how? Secondly, does this mean that there is something not right with my parameters for mri_gtmpvc? Cheers,Shane
Is this a kinetic modeling study or just an uptake?
On 08/13/2018 05:36 AM, Shane Schofield wrote:
External Email - Use Caution
Hello Petsurfers!
A few of my subjects ended up with vertices that had outlier PET values after I followed the PetSurfer steps. Most of the binding potentials are in the range of 0 - 3. Looking at the histogram though there are a couple of vertices with values around -30. First of all how can I deal with this? Can these voxels be excluded from the data, and how? Secondly, does this mean that there is something not right with my parameters for mri_gtmpvc?
Cheers, Shane
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Hi Doug, it is kinetic modelling, not uptake. Thank you.
On Monday, August 13, 2018, 10:36:13 AM GMT+1, Shane Schofield shane.schofield@yahoo.com wrote:
Hello Petsurfers! A few of my subjects ended up with vertices that had outlier PET values after I followed the PetSurfer steps. Most of the binding potentials are in the range of 0 - 3. Looking at the histogram though there are a couple of vertices with values around -30. First of all how can I deal with this? Can these voxels be excluded from the data, and how? Secondly, does this mean that there is something not right with my parameters for mri_gtmpvc? Cheers,Shane
freesurfer@nmr.mgh.harvard.edu
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Douglas N. Greve -
Shane Schofield