[slicer-users] problems with DTI import from Philips

Xiaodong Tao taox at research.ge.com
Thu Dec 9 14:05:16 EST 2010


Hello Mario,

The DicomToNrrdConverter tool has been tested for correctness using datasets from the following Philips scanner/software version combinations:

Achieva 2.1.3.6
Achieva 2.5.3.0
Achieva 2.5.3.3
Achieva 2.6.1.0
Intera 2.1.3.6
Intera 2.6.3.5

Please check the platform and the software version used for image acquisition. Also, are these files being processed before they are passed into DicomToNrrdConverter?

In any case, if you could share one dataset, we may be able to figure out what was the problem.

Thanks.
Xiaodong

On Dec 9, 2010, at 1:08 PM, Mario Quarantelli wrote:

> Hello there,
> I'm relatively new to slicer, and I'm trying to import a DWI volume (32 directions, 50 planes) from a 3T Philips scanner into slicer v 3.7 on a Windows XP PC.
> 
> For each dicom file I get in the log the following warning:
> 
> WARNING: In ..\..\..\Insight\Code\IO\itkGDCMImageIO.cxx, line 348
> GDCMImageIO (17BEB008): The DICOM file: W:/cnr/CCA/DICOM/XXXXXX_XXXXXXX/DTI_corretto/IM_0446 does not have a preamble.
> 
> The corresponding nrrd, .txt .bval and .bvec files are generated, but when I load the volume in slicer I get the bogus result displayed in the  attached image
> 
> The same files are correctly handled by FSL when converted in niftii using dcm2nii (but slicer crushes when trying to load these files).
> 
> I currently import correctly on the same PC DTI data from a Siemens Trio scanner, which are successfully analysed using slicer tractography tools.
> 
> Any clue on where the problem might be?
> 
> Thanks for any help you may give
> 
> sincerely
> mario
> 
> Mario Quarantelli, MD
> Researcher, Biostructure and Bioimaging Institute
> National Research Council
> Edificio 10, Via Pansini 5
> 80131 Napoli - ITALY
> FAX  +39 081 2296117
> MP   +39 333 4652204
> http://pveout.ibb.cnr.it/MQ/mqhp.htm
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