国产MR机器的DTI等数据无法导入的情况解决方案，在短期内3DSlicer解决的可能性不大，可以尝试应用dcm2nii软件进行转换，之后再由3DSlicer读取。
Diffusion-weighted DICOM Import (DWIConvert) standard error?
Operating system：Windows 10
Slicer version:4.9.0（2018-08-04）
DTI data of the United Imaging 3.0T （China）
Diffusion-weighted DICOM Import (DWIConvert) standard error:
Exception creating converter
itk::ExceptionObject (0000009A0518B610)
Location: "unknown"
File: D:\D\P\Slicer-0-build\BRAINSTools\DWIConvert\GenericDWIConverter.cxx
Line: 13
Description: itk::ERROR: LoadFromDisk not relevant
Diffusion-weighted DICOM Import (DWIConvert) standard output:
======= DWI Convert Public Lib Ctest =========
Found CommandLine Module, target is C:/Program Files/Slicer 4.9.0-2018-08-04/bin/../lib/Slicer-4.9/cli-modules/DWIConvert.exe
ModuleType: CommandLineModule
Diffusion-weighted DICOM Import (DWIConvert) command line:
C:/Program Files/Slicer 4.9.0-2018-08-04/bin/../lib/Slicer-4.9/cli-modules/DWIConvert.exe --conversionMode DicomToNrrd --outputVolume C:/Users/Cyufu/AppData/Local/Temp/Slicer/BBDCA_vtkMRMLDiffusionWeightedVolumeNodeB.nrrd --inputDicomDirectory D:/3DSlicer Data/DTI/20180826 XU Kaiyu/epi_dti_20180823 --outputDirectory . --smallGradientThreshold 0.2 --transposeInputBVectors
Please let me know if you need any more information to debug this issue.
Best,
Caoyufu
The error you posted often means that DWIConvert could not find any DTI-specific information in the DICOM (unfortunately the exception path doesn’t give a helpful error message right now).
The most common cause is that the DICOM files were anonymized and the necessary fields are not present in the header.
However:
cyufu:
United Imaging 3.0T
I am not familiar with this scanner brand, so don’t know what fields it uses to store DTI information. If they are not using the standard DICOM tags for diffusion information, then a vendor-specific reader may need to be implemented in DWIConvert. I would suggest to contact the vendor to find out.
I would suggest to contact the vendor to find out.
Specifically, DWIConvert needs to know the DICOM tags which store b-value and gradient information. For example, you can find some discussion/notes about the tags of existing supported vendors on this page:
https://na-mic.org/wiki/NAMIC_Wiki:DTI:DICOM_for_DWI_and_DTI 2