[IGSTK-Users] from nrrd to dicom files

[Luca Ramundo]

Luca Ramundo wrote:


> Hi all..
> I'd like to know if there is a way to get dicom file from nrrd file. I 
> have a file in nrrd format but I need dicom files..
> Otherwise is there somewhere a dataset for abdominal (dicom files + vtk 
> volume files)? I have only vtk volume files and an nrrd file.. :-(
> 
---------------------------
Luis wrote: 

Hi Luca,

You can convert nrrd to Dicom,
by just running the example:

Insight/Examples/IO
ImageReadDicomSeriesWrite.cxx

It will work with any of the input image file
formats supported by ITK, not only with nrrd.

Note that you should modify the "modality" in the
code, in order to match the actual content of the
nrrd image.



Regards,


Luis

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Luca Ramundo wrote:

Thanks, Luis..
I changed only the value of modality tagkey in "CT" because I need computed thomography dicom and It's Ok.. but I have a problem.. when I try to visualize
these images I see only on sagittal view and nothing in axial and coronal.. what can I do? Have I change some other tagkey value in source code? 
-----------------------------------------------------------------


Luis wrote: 

Hi Luca,

1) What do you use for visualizing the DICOM images ?

2) How many files were generated in the output DICOM directory ?

3) What was the size (number of pixels along each dimension)
of tne initial nrrd image ?


Please let us know,


Thanks


Luis

----------------------------------------------------------------------

Luca Ramundo wrote:

 

I'm sorry, but probably I didn't tell you clearly my problem.. I converted my nrrd file in dicom files after changed modality tag on CT value.
Now I try to load these files with Navigator example, but I view these only on sagittal (I think it's that) view and all black on other two views.. you know well Navigar source code, so I think that you can help me in this problem.. why does it this happen?
I read this paper http://www.igstk.org/papers/IGSTK-SPIE-2006.pdf and I have appreciate it but I'd like to know why in last IGSTK source code the Needle Biopsy Example is different; I talk only about graphical interfaces.. I know that functionalities are the same!!! 
thank you again,
Luca 

------------------------------------------------------------------------

Luis wrote: 

Hi Luca,

If your input nrrd image has multiple slices, then
you should be able to see anatomical information from
any of the views: Axial, Coronal, Sagittal.

Please let us know about the image information that
we requested in our previous email.


Thanks


Luis

-------------------------------------------------------------------------

Luca Ramundo wrote:

 

Well..
I have now 114 dicom files.. I saw that with 3dSlicer I can visualize these on three views but on Navigator example I can't..
I just noticed that I see all three planes on 3d views only if I select (with scrollbar) slice 0 for axial and slice 0 for coronal (any for sagittal).. then if i change slice with scrollbar these planes ( axial and coronal) disappear!! why???

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