Dear John (and SPMers),
We have the nose "wrapped", sitting behind at the back of the head and
hence also perhaps effecting the EPI’s, as the data is acquired
periodically I believe this is not a problem and just a question of
wrapping the data around on itself. I have enquired with the local
expertise, however I am unsure whether this wrap has to be applied at the
realign stage, that is do you consistently have to enable Wrap in the
defaults( or via a script) eg say defaults.realign.write.wrap [ 0 0 0] ,
and in all subsequent pre-processing operations, that is, does it "carry
through", or do all the default wrap operations have to be enabled ( eg
defaults.coreg.write.wrap , defaults.normalise.write.wrap etc). From my
understanding of the code, the zero vector above [ 0 0 0] refers to the
directions x,y z, so if the nose is wrapped around in the phase encode
direction or the y direction would that indicate that the vector should
be [ 0 1 0] to enable wrapping?( and finally if time permits are there any
adverse effects to having the wrap around enabled as a default, or should
this be avoided?)
Many thanks in advance!
With very best wishes!
Ramsey
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