[Insight-users] Slice spacing of DICOM series

[Mathieu Malaterre]

Andrew,

	Could you check you are using GDCM. GDCM was not the default DICOM IO 
factory until very recently.

	For more info on the ZSpacing you can check what is being done in 
gdcm/src/gdcmFile.cxx:File::GetZSpacing()

HTH,
Mathieu



Andrew Li wrote:
> Hi,
> 
> We use itk::ImageSeriesReader to read 3D MRI data set that is stored as
> a (2D) DICOM series and then check the slice spacing in slice direction
> as following:  
> 	...
> 	ReaderType::Pointer reader = ReaderType::New();
> 	...
> 	double sliceSpacingInSliceDirection =
> (reader->GetOutput()->GetSpacing())[2]; 
> 	...
> 
> How slice spacing in slice direction is derived in
> itk::ImageSeriesReader Class? It seems not from the tag: {0x0018,
> 0x0088} (spacing between slices).
> 
> Please let me know. Thanks.
> 
> -Andrew
>  
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