[Insight-users] Reading time series (4D) image from DICOM series

[Martin Kavec]

On Mon, 20 Mar 2006, Mathieu Malaterre wrote:

> Martin Kavec wrote:
>> Hi,
>> 
>> I have modified DicomSeriesImageReadWrite2.cxx from Examples/IO to read all 
>> the DICOM series in a directory containing a 4D fMRI time series and to 
>> print sizes of itkImage.
>> 
>> Thanks to great leap in GDCM in the ITK-2.6.0, the time series is nicely 
>> sorted based on acquisition time. However, itkGDCMImageIO produces only 3D 
>> itkImage [x; y; z * t] out of time series, while one would expect it to be 
>> a 4D itkImage [x; y; z; t]. The 3rd dimension size is a multiple of a 
>> number of timepoints despite the itkImage being declared as 
>> itk::Image< PixelType, Dimension = 4 >.
>> 
>> I think, this issue falls into the itkGDCMImageIO's responsibility. It 
>> would be nice, if this class could have some heuristics to create correctly 
>> sized itkImage the same way as itkAnalyzeIO can correctly create 4D 
>> itkImages. Although I guess it is more complicated to decide on a 4D 
>> criteria in case of DICOM images.
>> 
>> I uploaded anonymized DICOM 4D [128, 128, 24, 4] series on a web as well as 
>> my modification of DicomSeriesImageReadWrite2.cxx (+CMakeList.txt), if 
>> someone would like to have a look at this issue. I would appreciate that.
>
> Martin,
>
> 	Could you open a bug feature for that at:
>
> http://itk.org/Bug
>
> 	Then assign it to me (including all the above information). If you do 
> not want to publish the URL of the DICOM file, just send it to me in a 
> private email.
>
> Thanks
> Mathieu
>

Mathieu,

I just filed the issue. I was too eager to send my last email that I 
forgot to give a link to the data:

http://www.uku.fi/~kavec/itk4D.tar.bz2

Thanks for taking care of this. Resolution of this issue will help me A LOT.

Martin