My anatomical and functional data are oblique!?
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Q16. My anatomical and functional data are oblique!?
AFNI requires that the datasets be on "parallel grids" - that is, that the 2D slices be parallel or perpendicular. Some sites (not MCW) gather functional data that is oblique to the anatomical scans. It is then necessary to rotate one or the other so that their grids are parallel. It is better to rotate the anatomical data, for two reasons:
- It is usually of higher resolution, so will be less affected by interpolation artifacts.
- You usually care more about the functional data, so it should be left alone.
This FAQ applies to: Any version.
