# Not working "DWI Component"

**URL:** <https://discourse.slicer.org/t/not-working-dwi-component/4793>\
**Category:** Support\
**Tags:** diffusion, dicom, dwiconvert, nrrd\
**Created:** [November 19, 2018, 4:07am UTC](https://discourse.slicer.org/t/not-working-dwi-component/4793 "2018-11-19T04:07:21Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ihnorton](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ihnorton/32/9_2.png) [@ihnorton](https://discourse.slicer.org/u/ihnorton)\
**Post date:** [November 20, 2018, 6:45pm UTC](https://discourse.slicer.org/t/not-working-dwi-component/4793/2 "2018-11-20T18:45:39Z")

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Hi @Ekaterina, here are some suggestions to get started from raw DICOM files.

1. please see this tutorial for loading DWI data from DICOM:

2. Next, please see this tutorial (from around page 57) for how to calculate a diffusion tensor volume from a DWI image, and then measure Fractional Anistropy.

It sounds like you may have tried step 1 already, and there was a problem. If that is true, then please run the conversion again and [send a log file](https://www.slicer.org/wiki/Documentation/Nightly/SlicerApplication/ErrorLog#To_capture_the_entire_error_log_for_a_report). Also please provide more information about the dataset (scanner model, etc. – if you are able to privately share data then that would be most helpful).

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