You can do this with a FreeSurfer tool, something like:
tkregister2 --targ dicom1 --mov dicom2 --regheader --reg junk.reg \
--fslout fsl.reg --noedit
dicom1 is any file from the target dicom series, and dicom2 is any
file from the input dicom series. fsl.reg is the matrix you want. If
you leave off the --noedit, then it will bring up a window showing you
the registration. Run tkregister2 with --help to get copious amounts
of documentation.
doug
On Tue, 10 Apr 2007, Yaroslav Halchenko wrote:
> Dear All,
>
> I am seeking for an advice.
>
> I have a T1 acquired high res axials, full brain, with sufficient FOV.
> Also I have BOLDs which are acquired at a manually tweaked orientation,
> different resolution and smaller FOV which would not allow me to acquire
> proper full brain in that orientation due to warp around due
> to limiting FOV.
>
> Since, if I get it correctly, DICOMs carry position/orientation of
> the slices within (0020,0032) and (0020,0037) fields it is just a matter
> of a simple linear algebra to get a FSL-compatible registration matrix
> to operate on converted Dicom->Nifti files to register my BOLD slices
> into the full brain anatomicals (assuming there is no motion). Is
> there a simple way within FSL toolset to acquire such transformation
> matrix or do I have to compute it manually? or may be I am missing some
> piece to get such transformation computed?
>
> Thanks in advance
>
>
>
--
Douglas N. Greve, Ph.D.
MGH-NMR Center
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Phone Number: 617-724-2358
Fax: 617-726-7422
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