[amide-users] ROI meaning

[Douglas R. <djr...@uc...>]

Andy,

I read the last post on the archive about the mean value being reported in
pet units such as cps/cc. I performed a little test by importing microPET
data as raw with the real voxel sizes and a fake voxel size that was double
the original. I applied an VOI over the same number of voxels and calculated
the statistics. The mean value is exactly the same when I would expect that
the mean would be quite different.

I also know that Siemens microPET voxel values are reported in counts/sec
only. My question is your mean value counts/sec/voxel in this case? Thanks.


Doug