[vtkusers] dicom into 3D
seb-ml-vtk at barre.nom.fr
Sat Mar 10 22:10:02 EST 2001
At 11/03/2001 10:24, Audi wrote:
> > Did anybody ever tried to load DICOM samples provided in the sebastien
I guess you are referring to that page :
and the file : CT-MONO2-16-ankle
> > I tried to load DICOM sample about ankle and it only able to display 2D
> > image eventhough I use volume rendering.
> > Are you able to render the DICOM samples after you convert to RAW and
> > display it as 3D that can rotated such that can be seen all side of the
Oh I see the problem :), there is some kind of misunderstanding :) That
file does not hold any "3D object", it's just a *2D* screen-capture of a 3D
reconstruction that was performed at a hospital, somewhere, somehow,
sometime (I do not know much about that picture, and I've anonymized it
Look at its tags :
Image Type (0008,0008) 1-n CS [DERIVED\SECONDARY\3D]
that kind of file is a so-called "secondary capture", a "A general catch
all Modality that is used for images that did not originate as a DICOM
image. Image that were stored as TIFF or BMP that are converted to
DICOM are given this Modality.".
> > I really stuck, I suppose to render that image in 3D, but I always get 2D.
Definitely. There is hardly any chance that you will ever get a 3D volume
rendering from a single-frame DICOM file. You will succeed by using a set
of contiguous 2D images, i.e. a *series* of medical file (an acquisition).
Or a multiple-frame DICOM file, although I've not seen any stack organized
that way at the moment (multiple-frame file are most of the time used for
cine-mode and so on).
> > If anybody can display it as 3D, can give me advise how to do it?
If somebody has displayed it as 3D, it deserves my admiration, and should
send me a postcard :)
Anyway, if you want to try "volume rendering", download the VTK data files,
and use the frog, fullhead, headsq dataset.
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