[Neuroimaging] NIFTI to DIcom

[Francesco Sammartino]

Thank you a lot Mahmoud.

In my case I would need to apply a 9 dof transformation to allineate the
DWI to the T1 so I assume I will need to rotate the vectors after. Did you
ever heard of changing the original DICOM header files with the new
gradients? Any possible problem with that?

Thanks


*Francesco Sammartino MD*

On Fri, Sep 16, 2016 at 12:53 PM, Mahmoud <zeydabadi at gmail.com> wrote:

> I'm a newbie but as I understood it is necessary to rotate the gradient
> vectors after motion correction.
> However, as I heard from Jesper Andersson, using the rotated vectors in
> new FSL/Eddy (eddy_openmp) doesn't make a big difference (something around
> 0.1%).
>
> I hope the other experienced users comment on this.
>
> Mahmoud
>
> On Fri, Sep 16, 2016 at 12:44 PM, Francesco Sammartino <
> docpatient at gmail.com> wrote:
>
>> Hi
>>
>> Can you provide me with some theoretical references on distortion
>> correction in diffusion imaging preprocessing?
>>
>> I need to convert back to DICOM one dti scan after motion
>> correction/distortion correction using flirt ecc.
>>
>> Is that theoretically Ok if I rotate appropriately the gradients after
>> applying the correction?
>>
>> Thanks
>>
>> Francesco Sammartino
>>
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