[Mristudio-users] Question

[susumu]

Hi Sarah,

The registration results of LDDMM you want to use is "kmap" and "hmap",
which are transformation matrix. The "target" and "template" images are what
you submitted and came back just for record. Most likely you don't use them.

Once you got the transformation matrices, you want to apply them to your
co-registered DTI (or other co-registered MRI) images such as fa and b0. The
target and template images are converted to binary images and could be
intensity normalized and size adjusted. You don't want to use them. You want
to apply the matrices to your MRI/DTI data after affine transformation but
before LDDMM submission, which are still floating point and, if you use our
template, have the 181x217x181 matrix size. 

-----Original Message-----
From: mristudio-users-bounces at mristudio.org
[mailto:mristudio-users-bounces at mristudio.org] On Behalf Of Sarah A Reading
Sent: Sunday, January 18, 2009 10:47 AM
To: lddmmproc at mristudio.org; mristudio-users at mristudio.org
Subject: [Mristudio-users] Question

Hi,

I have now successfully downloaded my resultant LDDMM data and have applied
the new matrix to the "target.img" data - subsequently resampled the data
back to ICBM space and saved as float then evaluated in ROI editor - all
looks good. My "target" data was only my .b0 and .fa so now I have those
transformed and saved.

I know I know the answer to this but I cannot figure it out. How do I apply
the transformation matrix to the rest of the registered data - specifically
to the .d? I know that I save the matrix (as .dat??) - which I have done -
but what is next?

Thanks!

Sarah.
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