[vtkusers] running example program

[Stefan Wesarg]

Hi Mark,

the example that you are using does not support the loading of DICOM  
data. In fact VTK doesn't do that at all.
If you want to load your DICOM data it has to be converted to 16 Bit 
image data without any additional information in the files. For 
uncompressed 16 Bit DICOM data - I gues that this is what you are 
dealing with - it is quite easy.

Simply write a small program that removes the header from the DICOM file 
and that writes the remaining information back to a new file. The 
program has to look for the Tag "7FE0" that signifies the start of the 
image information. The image information itself starts 2 Bytes after the 
"7FE0" Tag, i.e. "E0 7F xx xx ii" where "ii" is the first byte of the 
image information.

Stripping the DICOM header this way allows you to load the image data 
with the vtkVolume16Reader that is used in the Medical1 example. (I did 
it a several times like this, and it works quite well.)

Best regards,
Stefan

Mark Wyszomierski wrote:

>Hi everyone,
>
>I just downloaded and compiled VTK. I am trying to use the example
>programs, specifically Medical1.
>(C:\VTK\Examples\Medical\Cxx\Medical1).
>
>I have a dicom dataset I would like to visualize. I have them in a
>single directory. Do I need to convert this dataset into some kind of
>3D file type? Or will that be generated from the 2D slices?
>
>This is my first work in 3D file types for medical imaging, what are
>the most popular formats?
>
>Thank you,
>Mark
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-- 
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Dipl.-Phys. Stefan Wesarg

Fraunhofer Institute for Computer Graphics
Cognitive Computing and Medical Imaging (A7)
Fraunhoferstr. 5, 64283 Darmstadt, Germany
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email:	stefan.wesarg at igd.fraunhofer.de
http://www.igd.fhg.de/~swesarg/

phone:	+49 6151 - 155 511
fax:	+49 6151 - 155 480
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