Dear all,

 

For my study I’m looking into intra-scanner differences. I have three groups of patients, scanned on three different types of scanners, longitudinally. Resulting in 6 sets (3 groups, 2 time points) of T1 weighted images (A).

I co-registered (linear registration) the images to a reference image of the corresponding patient (B). Next to this I made a DARTEL template to bring the image to for VBM analysis. The images of B are brought to the template space by spatial normalization, creating a deformation field (C).

 

My question is; How do I concatenate the 4x4 matrixes produced in A -> B with the deformation fields created in step B -> C in order to do VBM analysis?

And how do I combine multiple deformation fields?

 

I hope someone could inform me soon,

Bye.

 

Steven Termeulen