Reply-To: | | [log in to unmask][log in to unmask], 5 Nov 2008 17:35:36 -06001788_us-ascii Rajeev,
To review Analyze or NIFTI parameters outside of SPM, if you have FSL3.3 or an earlier version, you can get a text header dump with: avwhd fname
Or for later versions of FSL: fslhd fname
Kathy Pearson UAB Psychology
-----Original Message----- From: SPM (Statistical Parametric Mapping) [mailto:[log in to unmask]] On Behalf Of Rajeev Raizada Sent: Wednesday, November 05, 2008 5:12 PM To: [log in to unmask] Subject: [SPM] Q: Command to tell whether a Nifti image actually contains L-R info within it?
Dear SPM list,
I had been under the impression that Nifti files always have L-R info built-in to them, so that you never need to worry about interpretation-conventions etc.
However, it seems that although Nifti images possess the *capability* of having built-in L-R info, they don't have to use it. An image can be in Nifti format without actually having that info built-in. If I open such an image in FSLview, it opens it and views it fine, but it says "Coordinate space: unknown", and does not show any L-R / A-P labels on the image view.
Is there a Matlab or SPM command which can tell me whether a particular Nifti file has L-R info built-in to it? I had thought that maybe spm_get_space would do that, but that command gives a matrix of output without complaining, even when I give it a "Coordinate space: unknown" image as input.
I've looked around a bit online, but the only discussions I can find about how L-R info gets built-in to Nifti images are epic poems about RAS, LAS, world-spaces and quaternions. Any simpler or more digestible answers would be greatly appreciated!
Many thanks,
Raj35_5Nov200817:35:[log in to unmask] |