[Insight-users] Multi Modality Image Co Registration

[Bill Lorensen]

Albert,

itk performs registration in physical space. For radiology data, the
units are normally in mm's.

If the CT and MR data were landmarked similarly, you should not have
to modify either dataset. You do not have to resample or reorient
either volume.

That said, the picking of parameters can be tricky.

Bill

On Tue, Jul 7, 2009 at 8:11 AM, Albert King<albert.king84 at yahoo.com> wrote:
> Hi All,
>
> I am trying to perform Image Co registration (fusion ) of CT and MRI dicom
> Images .Considering my registration as rigid registration (translation ,
> rotation and scaling) I have fused a single slice of a CT amd MRI using
> Image registration 8.cxx.I have the following Queries.
>
> CT data set is obtained from the scanner at a different angulation from that
> of MRI (i.e . the way we acquire CT data set is different and the way we
> acquire MR data set is different).Do I have to perform Multi Planr
> reformation of the CT datatset to match  the MRI angulation .
> CT data set Matrix Size is of 512 x 512  and MRI data set Matrix Size is 256
> x 256.Do I have to rescale so as to avoid mis registration.
> Choosing the right values of different parameters for satisfactory
> registration is a tricky job.Is there any registration monitoring mechanism
> in ITK.
>
>
>
> Please Help.Thanks in Advance.
>
>
>
>
>
> Regards
>
>
>
> Albert
>
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