# Rt-structures : artefact

**URL:** <https://discourse.slicer.org/t/rt-structures-artefact/6089>\
**Category:** Support\
**Tags:** segmentation, dicom\
**Created:** [March 10, 2019, 3:31pm UTC](https://discourse.slicer.org/t/rt-structures-artefact/6089 "2019-03-10T15:31:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![michael](https://avatars.discourse-cdn.com/v4/letter/m/4bbf92/32.png) [@michael](https://discourse.slicer.org/u/michael)\
**Post date:** [March 10, 2019, 3:31pm UTC](https://discourse.slicer.org/t/rt-structures-artefact/6089/1 "2019-03-10T15:31:27Z")

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Hello everyone

i’ve got some troubles. When importing DICOM RT Structure into 3d-slicer somes structures (not all) presents this kind of artefact !

it also affect others superposed structures

Can someone help me cause it avoid me to use the segmentations…!

[artefact|458x500](https://discourse.slicer.org/404) ![artefact1](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/8/6/868916ab39b6f6f7a6ed23943f7886b63bf40d75.png)

thank for you knowledge!

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**Author:** ![michael](https://avatars.discourse-cdn.com/v4/letter/m/4bbf92/32.png) [@michael](https://discourse.slicer.org/u/michael)\
**Post date:** [March 10, 2019, 3:32pm UTC](https://discourse.slicer.org/t/rt-structures-artefact/6089/2 "2019-03-10T15:32:06Z")

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![artefact](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/d/c/dce7d9e3d3136916387b954c94fe98f7cbf87252.png)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [March 10, 2019, 3:44pm UTC](https://discourse.slicer.org/t/rt-structures-artefact/6089/3 "2019-03-10T15:44:52Z")

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Could you please try with latest nightly version of Slicer?