questions
questions > RE: Enhanced Dicom Siemens Vida XA11 bval/bvec files
Feb 22, 2019 12:02 PM | Chris Rorden
RE: Enhanced Dicom Siemens Vida XA11 bval/bvec files
dcm2niix can handle Siemens Vida XA10/XA11 data. The general method
is described here. You may want to look at issues 236 and 240. For other Siemens DICOM we extract the DTI bvec/bval from the CSA
header. But for all the Vida data I have seen they now use the
public tags 0018,9089 and 0018,9087. If you use dcmdump on a set of
data you should see fields like this:
(0018,9089) FD -0.20342215895652771\-0.51398676633834839\-0.8333289623260498 # 24, 3 DiffusionGradientOrientation
(0018,9087) FD 1000 # 8, 1 DiffusionBValue
I have only seen XA10 data and simulated XA11 data. I am unaware of the use of tags 0019,100c and 0019,100e. Can you please make sure the publc tags (which start with an even number are not present). I would also suggest making sure you are using the most recent release of dcm2niix (you can even try out the more recent development branch). Also, it is critical that you save to enhanced DICOM without selecting the mosaic format or the de-identification At least with XA10 selecting either of those options would strip the diffusion tags from your data.
If the problem persists, open a Github issue.
(0018,9089) FD -0.20342215895652771\-0.51398676633834839\-0.8333289623260498 # 24, 3 DiffusionGradientOrientation
(0018,9087) FD 1000 # 8, 1 DiffusionBValue
I have only seen XA10 data and simulated XA11 data. I am unaware of the use of tags 0019,100c and 0019,100e. Can you please make sure the publc tags (which start with an even number are not present). I would also suggest making sure you are using the most recent release of dcm2niix (you can even try out the more recent development branch). Also, it is critical that you save to enhanced DICOM without selecting the mosaic format or the de-identification At least with XA10 selecting either of those options would strip the diffusion tags from your data.
If the problem persists, open a Github issue.
Threaded View
Title | Author | Date |
---|---|---|
egourieux | Feb 22, 2019 | |
Chris Rorden | Feb 22, 2019 | |
egourieux | Feb 25, 2019 | |
Chris Rorden | Feb 22, 2019 | |