Hi all,
starting from the CT perfusion DICOM files I obtained the nifti penumbra VOI.
Now I want to check which anatomical areas are affected based on the AAL atlas. I am stuck in the coregistration phase. How can I adapt a VOI extracted from a CT to an atlas?
Thanks for the advice, I am new to neuroimaging analysis, so any suggestions are welcome.
You should be able to use any of the registration techniques to get a reasonable alignment.
You may also want to see if SynthSeg can segment your CT directly.
Thanks. I first applied manual transformation to align the perfusion map to NCCT brain, then I used the same transformation for the segmented VOI (to align VOI to subject brain). And at last I run an affine registration of subject brain to a CT template and applied the same affine registration to the VOI (this last steps with antspyx script or with DSI Studio integrated tools). It works fine for my goal