[Insight-users] ITK to VTK Convertion Error

[Luis Ibanez]

Hi Abayiz,

Thanks for sharing your images.

Can you please describe how you are using the class

                  itkGDCMSeriesFileNames

to produce the files names for these DICOM slices ?

It will be very useful to that the code snippet where
you set up the SeriesFileNames, and pass the input
to the ImageSeriesReader.


It looks like something is wrong in that setup...


    Thanks


         Luis



---------------------------------------------------------------------------
On Tue, May 24, 2011 at 6:38 AM, Abayiz <abayiz at yahoo.com> wrote:
> Hi Luis,
>
> Thank you again for your reply.
>
> The slices seem to be in a random order after conversion. But, not exactly random, since after each and every randomly ordered ten slices, the eleventh slice is seem to be in a correct manner. For instance, the correct first slice goes to the eleventh slice after conversion, the correct second slice goes to 22th,etc, between which other random slices are placed.
>
> I actually added some images of this problem in my previous email yesterday, but not sent successfully due to the attachment size limit.
>
> Hope this could be helpful to get your suggestions again. Thank you.
>
> Best,
> Abayiz
>
> --- On Sun, 5/22/11, Luis Ibanez <luis.ibanez at kitware.com> wrote:
>
>> From: Luis Ibanez <luis.ibanez at kitware.com>
>> Subject: Re: [Insight-users] ITK to VTK Convertion Error
>> To: "Abayiz" <abayiz at yahoo.com>
>> Cc: insight-users at itk.org
>> Date: Sunday, May 22, 2011, 5:46 PM
>> Hi Abayiz,
>>
>> What *exactly* is different about the slices
>> sequence when you convert from VTK to ITK ?
>>
>> Are they in random order ?
>>
>> Are they up-side down ?
>> if so, is this along Z ? Y ?
>>
>>
>> Please be more specific.
>> or provide a screenshot.
>>
>>     Thanks
>>
>>
>>            Luis
>>
>>
>> -------------------------------------------
>> On Sun, May 22, 2011 at 11:27 AM, Abayiz <abayiz at yahoo.com>
>> wrote:
>> > Hi Luis,
>> >
>> > Thank you very much for your answer.
>> >
>> > The problem is, if I use VTK to load dicom, and view
>> it also using VTK, everything is fine. But after I converted
>> it to ITK, then the sequence problem comes.  after
>> conversion from VTK to ITK, the dicom slices are totally not
>> in the correct sequence. Any suggestions?
>> >
>> > Thanks again.
>> >
>> > Abayiz
>> >
>> > --- On Sat, 5/21/11, Luis Ibanez <luis.ibanez at kitware.com>
>> wrote:
>> >
>> >> From: Luis Ibanez <luis.ibanez at kitware.com>
>> >> Subject: Re: [Insight-users] ITK to VTK Convertion
>> Error
>> >> To: "Abayiz" <abayiz at yahoo.com>
>> >> Cc: insight-users at itk.org
>> >> Date: Saturday, May 21, 2011, 1:08 PM
>> >> Hi Abayiz,
>> >>
>> >>
>> >> Can you describe the distortion ?
>> >>
>> >> Maybe post a screenshot ?
>> >>
>> >> Note that VTK images do not have
>> >> a explicit representation of Orientation,
>> >> so the information about the DICOM
>> >> direction matrix gets lost when you use
>> >> VTK for reading the DICOM images.
>> >>
>> >> You may find better to use the ITK GDCM
>> >> reader in order to load the DICOM images.
>> >>
>> >>
>> >>      Luis
>> >>
>> >>
>> >> ---------------------------
>> >> On Fri, May 20, 2011 at 10:03 AM, Abayiz <abayiz at yahoo.com>
>> >> wrote:
>> >> > Hello all,
>> >> >
>> >> > I am using a vtk-based dicom loader to load
>> dicom
>> >> series, and then use ITK to perform registration.
>> But I
>> >> found that when I try to convert from VTK to ITK,
>> it is not
>> >> working correctly, i.e., the dicom file orders
>> are
>> >> distorted, not the same as before conversion.
>> >> >
>> >> > I doubt itkVTKImagetoImageFilter is not
>> working quite
>> >> well with dicom files, since the same files can be
>> read
>> >> quite well using only itk-based loader. Am I
>> right? How can
>> >> I work this out?
>> >> >
>> >> > Many thanks in advance!
>> >> >
>> >> > Abayiz
>> >> > _____________________________________
>> >> > Powered by www.kitware.com
>> >> >
>> >> > Visit other Kitware open-source projects at
>> >> > http://www.kitware.com/opensource/opensource.html
>> >> >
>> >> > Kitware offers ITK Training Courses, for
>> more
>> >> information visit:
>> >> > http://www.kitware.com/products/protraining.html
>> >> >
>> >> > Please keep messages on-topic and check the
>> ITK FAQ
>> >> at:
>> >> > http://www.itk.org/Wiki/ITK_FAQ
>> >> >
>> >> > Follow this link to subscribe/unsubscribe:
>> >> > http://www.itk.org/mailman/listinfo/insight-users
>> >> >
>> >>
>> >
>> >
>>
>