[vtkusers] DICOM Images: vtkDicomReader & vtkGdcmReader

[Michael Lynch]

Thanks Mathieu,
I was using the old version from INRIA. I'll get version 2 and try that out.

I'll let you know how it goes.

Cheers,
Michael

On Thu, Oct 8, 2009 at 11:44 AM, Mathieu Malaterre <
mathieu.malaterre at gmail.com> wrote:

> On Thu, Oct 8, 2009 at 5:30 PM, Michael Lynch <mick.lynch at gmail.com>
> wrote:
> > hey there,
> > I have a series of DICOM images on my system. I have the names stored in
> > vtkStringArray. I want to display the images as a volume and have tried
> two
> > different methods.
> > 1. I looked into vtkDicomReader. And actually, if I try to open and view
> a
> > single dicom then vtkDicomReader works perfectly. However, it was not
> able
> > to open a series of images if I passed it the vtkStringArray. I first
> > checked if the individual DICOM files were readable using
> CanReadFile...the
> > results were positive for all files in the string array. Below is the
> error
> > I got.
> > error message:
> > vtkDICOMImageReader.cxx, line 256
> > vtkDICOMImageReader (0xd043180): Either a filename was not specified or
> the
> > specified directory does not contain any DICOM images.
> > I thought perhaps vtkDicomReader was not able to open a series of images
> so
> > I decided to migrate to vtkGdcmReader (which I heard was more powerful).
> > 2. So I tried to read the file selection using vtkDicomReader. The result
> > was a little more cryptic though. I get no error message when I build or
> run
> > but the volume did not appear as it should. The series of images appear
> as
> > just one image, perhaps it's a problem with image spacing? My main
> problem
> > is that, even though I compiled GDCM in debug, qtcreator will not run in
> > debug when I'm using vtkGdcmReader. Can anyone tell me what the problem
> is?
> > I hope this is the right forum for this question. But I know this mailing
> > list has a lot of expertise and a large responsive community...so I
> thought
> > I'd post here.
> > Thanks in advance,
>
> You are using vtkGDCMImageReader right ? Not the old vtkGdcmReader
> from gdcm 1.x ?
>
> Just pass in the vtkStringArray:
>
>
> http://gdcm.sourceforge.net/html/classvtkGDCMImageReader.html#051e8ec877c64032750d1b628be247ca
>
> The list of file will NOT be reordered automatically, you need to
> explicitely ask for reordering:
>
>
> http://sourceforge.net/apps/mediawiki/gdcm/index.php?title=Using_GDCM_API#Automatic_ordering_of_slices_for_vtkGDCMImageReader.SetFileNames
>
> HTH
> --
> Mathieu
>



-- 
Michael
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