# Failure to load rodent DWI data

**URL:** https://discourse.slicer.org/t/failure-to-load-rodent-dwi-data/14719
**Category:** Support
**Created:** [November 20, 2020, 10:25pm UTC](https://discourse.slicer.org/t/failure-to-load-rodent-dwi-data/14719 "2020-11-20T22:25:21Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![rcknickmeyer](https://avatars.discourse-cdn.com/v4/letter/r/74df32/32.png) [@rcknickmeyer](https://discourse.slicer.org/u/rcknickmeyer)
#### Post date: [November 20, 2020, 10:25pm UTC](https://discourse.slicer.org/t/failure-to-load-rodent-dwi-data/14719/1 "2020-11-20T22:25:21Z")

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I am trying to load diffusion weighted images into Slicer. These are mouse images acquired on a Bruker 7T. When I try to load the DICOM images using the “import DICOM files” function this is what happens:

 ![Screenshot_DTI_loading_issue](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/6/a6198fedd4ae0f9b6470fabd64f7e52cb7670725.jpeg)

I tried using the DWI converter and received the following error:

Diffusion-weighted DICOM Import (DWIConvert) standard error:

Exception creating converter

itk::ExceptionObject (00000003AFAFD9A0)

Location: “unknown”

File: D:\D\S\Slicer-0-build\BRAINSTools\DWIConvert\GenericDWIConverter.cxx

Line: 13

Description: itk::ERROR: LoadFromDisk not relevant

I also asked the MRI technician to provide the files in NIfTI format.

She provided one version where the data was represented by a single file: this is what I get when I try to load it:

 ![Screenshot_NII_LOADING_ISSUE](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/6/f/6fff592327d729f44774f8a3fa23ac53da3d7ab8.png)

Another version included many different .nii files; when I try to load these as a batch nothing happens.

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### Author: ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [November 24, 2020, 6:27pm UTC](https://discourse.slicer.org/t/failure-to-load-rodent-dwi-data/14719/2 "2020-11-24T18:27:45Z")

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As you probably know DWI data formats, particularly from research scanners, are complex and highly variable. Probably your best bet is to try [dcm2nii](https://github.com/rordenlab/dcm2niix) either directly or with [SlicerDMRI](https://dmri.slicer.org) ([SlicerDcm2nii](https://github.com/SlicerDMRI/SlicerDcm2nii))