Hi all,
we are starting some new DTI acquisitions with a 1.5T scanner. The data are interpolated to 128x128x50 matrices, while acquired as 96x96 matrices.
I think I understood that interpolation should be avoided, because it brings some "artificial" data (correct me if I'm wrong), but it's not very clear to me why the tractography algorithms should be run on isometric voxels. Could someone please point the reason behind that out to me, as it's starting to bug me?
And should one decide not to avoid the interpolation on the machine, would it be better to interpolate to 256x256 or to 128x128, supposing that the processing time is not an issue?
Many thanks in advance
|