History of AFNI updates  

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January 17, 2018 10:04AM
The difficulty with such volumes is that the through-slice resolution is typically 5 mm, which makes the in-slice images look good (very high SNR), but makes it hard to match them to a template dataset at 1 mm resolution. It is possible to resample them to a 1 mm grid in all 3 directions ("isotropic"), and then try the standard alignment tools. However, segmentation will be inaccurate since the resolution in the z direction will still be lousy.

If I were trying this, I would assemble the slices into a 3D dataset, then try the @SSwarper command to see how well it works. Probably a fair amount of swearing at the computer will be involved along the way.
Subject Author Posted

2D T1 registration

mentekp January 14, 2018 11:02AM

Re: 2D T1 registration

ptaylor January 14, 2018 02:12PM

Re: 2D T1 registration

RWCox January 14, 2018 02:16PM

Re: 2D T1 registration

mentekp January 14, 2018 04:09PM

Re: 2D T1 registration

Bob Cox January 17, 2018 10:04AM

Re: 2D T1 registration

Daniel Glen January 17, 2018 03:52PM