# Tractography - bad quality

**URL:** <https://discourse.slicer.org/t/tractography-bad-quality/6191>\
**Category:** Support\
**Tags:** diffusion, tractography\
**Created:** [March 18, 2019, 1:08pm UTC](https://discourse.slicer.org/t/tractography-bad-quality/6191 "2019-03-18T13:08:21Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![ljod](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ljod/32/652_2.png) [@ljod](https://discourse.slicer.org/u/ljod)\
**Post date:** [April 2, 2019, 7:17pm UTC](https://discourse.slicer.org/t/tractography-bad-quality/6191/3 "2019-04-02T19:17:10Z")

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Hello. I’m sorry about the late response. The reason this has happened is most likely that DWIConvert is not properly handling your diffusion MRI scan. We have a new module that will be available to use the DCM2nii tool within Slicer. This will become available in the nightly build version of Slicer. However, there have been some internal code updates to Slicer so we need to adapt SlicerDMRI to these for it to become available again in the nightly.

In the meantime, it is possible to use the software dcm2niix to convert from a large variety of DWI DICOM files to nifti and now also nrrd formats. Please see more information from Chris\_Rorden here:

> [@Not working "DWI Component"](https://discourse.slicer.org/t/not-working-dwi-component/4793/17):
>
> I converted dicom format in nii. Uploaded new images. This format is not set on the panel in the program How to convert now to nrrd? (DiconToNrrd? FSLToNrrd?) [image]

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_[View the full topic](https://discourse.slicer.org/t/tractography-bad-quality/6191)._