Dear Robert,

First of all my apologies for the late reply and I hope you have resolved the issue and are satisfied with DKE.

Just in case I will give you some suggestions!

- What is the structure of the gradients in your .dat file?  If it is the standard output .bvec of dcm2nii the matrix is most likely a 3x65 matrix (in your case).

First of all you will have to remove the first column (0,0,0), which corresponds to the B0 image. DKE only needs the 'real' gradient values.
For a 32 gradient protocol, DKE will expect a gradient file with a matrix of the size (32x3). As in most cases the same gradients are used for multiple B-values. This should not be an issue.

We are working on a new release, where you will be able to submit the gradient values in a different manner. For example a 64x3 matrix.

Watch out: Some Philips scanners create an average image after all gradient images. This image should be removed before doing the analysis. Normally dcm2nii will do this for you, but just so you make sure every image is lined up with the correct gradient value.

Making these adjustments should resolve the issue.
Please let me know if you have any further concerns.
Kindest Regards,
Emilie McKinnon