Dear Chris Rorden,

First I would like to thank you for your tool dcm2nii which is much appreciated by my team.

Secondly I have a small question on how do you extract Bvec Bval in diffusion images on an old MRI such as Siemens syngo MR. The issue we have is that we anonymize most of the private dicom tags prior we do the nifti conversion.

Using dcm2nii :
When I anonymize all private dicom tags, bvec/bval are not generated
When I anonymize the following all private tags except the list below, bvec/bval are not generated

• 0019; 100A; Number Of Images In Mosaic
• 0019; 100B; Slice Measurement Duration
• 0019; 100C; B_value
• 0019; 100D; Diffusion Directionality
• 0019; 100E; Diffusion Gradient Direction
• 0019; 100F; Gradient Mode
• 0019; 1027; B_matrix
• 0019; 1028; Bandwidth Per Pixel Phase Encode

When I skip the anonymization of the private tags, I manage to obtain the bvec/bval.

Could you please let know which fields you are looking at in order to generate the bvec/bval ?

Thanks and best regards,

Arnaud