[Insight-users] problems with DICOM reader

Marc HUERTAS Marc.HUERTAS at cmm.ensmp.fr
Wed, 11 Feb 2004 15:42:05 +0200


Hi,

Thanks...

i've alread tested the DICOM images with MRIConvert and I can view them 
without problems.

I'm using a VTK ray casting module that only works with 8bit unsigned 
images...

I'm moving the images from a linux workstation to a windows one, but this 
shouldn't be a problem, should be?

marc


On Wed, 11 Feb 2004 08:33:57 -0500, Luis Ibanez wrote
> Hi Marc,
> 
> Thanks for the clarification,
> 
> A saturation leads to suspect of a
> conflict with the endianness of the
> image.  Are you moving the images
> from PCs to Sun or Macs for example ?
> 
> What are you using for viewing the
> .vtk images ?
> 
> Please check first that you can view
> the original DICOM images using
> MRIConvert or VolView.
> 
> Regards,
> 
>    Luis
> 
> --------------------
> Marc HUERTAS wrote:
> 
> > Hi,
> > 
> > what I mean by "very strange things" is that there is a sort of 
saturation 
> > problem...
> > 
> > Marc
> > 
> >  
> > 
> >>Can you gives us a better description of the
> >>
> >>           "very strange things"
> >>
> >>that you get ?
> >>
> >>----
> >>
> >>Just for a test, try reading the DICOM images
> >>into an image with pixel type float. You can
> >>try visualizing the image with the ImageViewer
> >>application in InsightApplications.
> >>
> >>Have you verified the consistency of the DICOM
> >>files ?
> >>
> >>You could do this by viewing the original DICOM
> >>files with applications like:
> >>
> >>- MRIConvert
> >>http://lcni.uoregon.edu/~jolinda/MRIConvert.html
> >>
> >>or
> >>
> >>- VolView
> >>http://www.kitware.com/products/volview.html
> >>
> >>This will help to rule out the possibility of your
> >>DICOM files being inconsistent.
> >>
> >>Please let us know what you find,
> >>
> >>   Thanks
> >>
> >>      Luis
> >>
> >>-----------------------
> >>Marc HUERTAS wrote:
> >>
> >>
> >>>Hi,
> >>>
> >>>I'm trying to convert some DICOM images into .vtk format, but I've 
> > 
> > problems 
> > 
> >>>with the sign...Indeed the DICOM images are 16 bit signed, so I read 
> > 
> > them as 
> > 
> >>>signed short, but I get very strange things...
> >>>
> >>>Does anyone have the same problem? What could I do?
> >>>
> >>>thanks,
> >>>
> >>>Marc 
> >>>_______________________________________________
> >>>Insight-users mailing list
> >>>Insight-users at itk.org
> >>>http://www.itk.org/mailman/listinfo/insight-users
> >>>
> > 
> > 
> > 
> > 
> > Marc 
> > _______________________________________________
> > Insight-users mailing list
> > Insight-users at itk.org
> > http://www.itk.org/mailman/listinfo/insight-users
> >



Marc