Hi all,
I need to superimpose VBM (SPM) to vertex analysis results in order to highlight that the latter is more sensitive than the former to subregional changes. I focused on hippocampus.
VBM results are represented by a 91x109x91 image, while the basestruct built by first3Dviewer (FSL5.0) has dimension 182x218x182.
I tried to transform the VBM image into vertex one applying FLIRT transformation:
input volume: VBM image
Output size-Base on voxel dimensions- num voxel: 182x218x182 and voxel size 1x1x1 (vertex image dimension)
Then I superimposed vertex analysis image and VBM converted one by fslview.
How can I be sure that the transformation was successful and that the two images are centered at the same point?
Is there a more rigorous way to transform and then superimpose them?
Thanks
|