[Mristudio-users] ROI transformation

[susumu mori]

Hi Josselin,

If I understood your question correctly, you are interested in how to keep
the label name after transformation.

I believe "****TypeII" and "****TypeII.dat" are the same file. They both
contains 181x217x181 images. The label is in "****.hdr" file. When you load
the image as an ROI file, you need the *.hdr and *.dat file.

After you transformed a WMPM map (no extension or *.dat file) and save it
(e.g. test.dat), I believe you can just rename the *.hdr file so that you
can get both test.dat and test.hdr.

Xin and Andrea, correct me if I'm wrong.

susumu



On Mon, Jul 19, 2010 at 4:20 PM, Josselin <j.houenou at yahoo.fr> wrote:

> Dear mristudio developers and users,
>
> I have a pretty trivial question but I couldn't find any way to do it.
>
> I got for one subject a FA image and a B0 image. My goal is to register the
> WMPM type II eve atlas onto my FA map such as done in
> http://www.ncbi.nlm.nih.gov/pubmed/20570617 (paper by Zhang).
>
> I therefore used the steps described in
> https://www.mristudio.org/wiki/user_manual/diffeomap/
> I coregistered my FA map and B0 map with air then LDDMM and obtained AIR
> and LDDDM matrices which seem correct: when I apply Hmap to the file named
> "JHU_MNI_SS_WMPM_TypeII" then the inverted AIR transformation, it fits
> perfectly well on my original FA map.
>
> Nevertheless, I do not know how to transform the file
> "JHU_MNI_SS_WMPM_TypeII.dat" which contains the ROI label names. Is there
> any way to do it ? When I load this file as a "subject" in diffeomap and
> then try to apply Hmap.vtk onto it I get "Cannot crop the LDDMM map" as an
> error message. Any suggestion ??
>
> Many thanks,
> Josselin Houenou
>
>
>
>
>
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