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 n…

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 th…

CT perfusion coregistration to atlas

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pieper (Steve Pieper (Isomics, Inc.)) April 14, 2025, 5:09pm 2

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.

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CT perfusion coregistration to atlas

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