Dear John (and list)
I am still trying to implement a longitudinal TBM procedure and I am
getting confused by some of the steps.
My first question is regarding the processing steps used in the
following paper:
C M Kipps, A J Duggins, N Mahant, L Gomes, J Ashburner, and E A McCusker
Progression of structural neuropathology in preclinical Huntington’s
disease: a tensor based morphometry study
In methods section, it reads: "
2. We sought a high dimensional deformation field (using the spm2b
"Deformation Toolbox") that would warp the early T1 image to match the
late T1 image within subject.34 ...
3. The result of the high dimensional registration (step 2) is a
detailed deformation field that contains a mapping from each point in
the late image, to the corresponding point in the early image, for each
subject..."
Here is my question:
I am confused here .. .if you are warping the early image to the late image, shouldn't the result be a deformation field that contains a mapping from each point in the early image, to each point in the late image?
I have several more questions, but I'll just start with this one.
Thanks in advance for any answers,
Matt Senjem.
--
Matthew L. Senjem
Analyst Programmer - Imaging Systems
Mayo Clinic and Foundation
Mail Code: RO_CE_09_IMAGING
200 First St. SW
Rochester, MN 55901
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Fax: 507-284-9778
Phone: 507-538-0764
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