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Hi everyone,
I have used both T1 and (T2) Flair images as inputs to recon-all, and I
have generated some coordinates (ROI) that I can transform to the
original T1 images. Basically, I use the two matrixes obtained from the
mri_info -- vox2ras commands:
Sr = mri_info --vox2ras $SUBJECTS_DIR/$subject/mri/orig/001.mgz
Sc = mri_info --vox2ras $SUBJECTS_DIR/$subject/mri/T1.mgz
For a given point Coordinate=(x, y, z, 1) in the conformed space, I get the
coordinates in the original T1 space using the formula:
t1_Coordinate = inv(Sr) * Sc * Coordinate.
The above formula works fine. But I also want to get the transformed
coordinates in the Flair image space. I have used a similar way:
Srf = mri_info --vox2ras
$SUBJECTS_DIR/$subject/mri/orig/FLAIRraw.mgz
Sc = mri_info --vox2ras $SUBJECTS_DIR/$subject/mri/T1.mgz
flair_Coordinate = inv(Srf) * Sc * Coordinate.
But the above calculation is not correct. Does anyone have an idea of how
to get this flair coordinate?
Thank you!!!
Xiaojiang
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