[Dcmlib] question about Spacing tags

[Jean-Pierre Roux]

Hi, Sergio

I think you were reading the documentation of 'gdcm1', an old and 
obsolet version of gdcm.
(GDCM_NAME_SPACE doesn't exist any longer in gdcm2)

I forward your message to gdcm2 developpers.

Jean-Pierre




On 09/15/2011 04:09 AM, Sergio Aguirre wrote:
> Hi everyone
>
> I am a bit confused regarding the way X Y and Z spacing is determined 
> from the DICOM tags of CT DICOM Images.
>
> From the GDCM_NAME_SPACE::File Class Reference I see that both X and Y 
> spacing are determined by GetXSpacing() / GetYSpacing
>
> For both X and Y it states that it "gets the info from 0018|1164 : 
> ImagerPixelSpacing" THEN "0028|0030: Pixel Spacing ELSE 1.0"
>
> Does this mean that IF a valid value is present in 0018|1164 and a 
> second valid value in 0028|0030 it will use the value stored in 
> 0028|0030????
>
> For Z Spacing again it states that it "gets the info from 0018|0088: 
> Space between slices" else "from 0018|0050 Slice Thickness" else 1.0
>
> Does this mean that if there is a valid value in 0018|0088 and a 
> second valid value in 0018|0050 it will use the one stored in 0018|0050???
>
> Thank you, hope you can help
>
> Sergio
>
>
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-- 
Jean-Pierre Roux
CNRS UMR 5220, INSERM U 1044

Laboratoire en lutte!
http://www.creatis.univ-lyon1.fr
http://www.sauvonslarecherche.fr/

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