# Display issue with RT structs and MR volume

**URL:** <https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546>\
**Category:** Support\
**Tags:** slicerrt\
**Created:** [June 21, 2017, 1:40pm UTC](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546 "2017-06-21T13:40:18Z")\
**Posts on this page:** 8\
**Page:** 2

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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:** [July 12, 2017, 4:06pm UTC](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546/21 "2017-07-12T16:06:37Z")

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Send us the structure set for now. We may be able to diagnose the issue from that.

If that’s not enough, then scan a phantom or use a publicly available DICOM data set (for example, download from [TCIA](http://www.cancerimagingarchive.net/)) and perform a similar contouring in the TPS and share that data set.

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**Author:** ![Rasha](https://avatars.discourse-cdn.com/v4/letter/r/ac8455/32.png) [@Rasha](https://discourse.slicer.org/u/Rasha)\
**Post date:** [July 12, 2017, 4:19pm UTC](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546/22 "2017-07-12T16:19:54Z")

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I just send it to you by email. Thanks again for your help.

Rasha

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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:** [July 12, 2017, 7:15pm UTC](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546/23 "2017-07-12T19:15:04Z")

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I haven’t received anything by email. Please upload it to dropbox, onedrive, etc. and post the link here. @Sunderlandkyl will investigate the issue.

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**Author:** ![Rasha](https://avatars.discourse-cdn.com/v4/letter/r/ac8455/32.png) [@Rasha](https://discourse.slicer.org/u/Rasha)\
**Post date:** [July 12, 2017, 7:28pm UTC](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546/24 "2017-07-12T19:28:29Z")

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Would you please provide me your email address to send it?  
I used "slicer@discoursemail.com" in the previous email.

Regards,  
Rasha

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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:** [July 12, 2017, 7:31pm UTC](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546/25 "2017-07-12T19:31:24Z")

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I don’t know what this slicer@discourse… email address is. In the meantime, @Sunderlandkyl has received the file from you, so that is enough. He’ll investigate and report back here.

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**Author:** ![Sunderlandkyl](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sunderlandkyl/32/79987_2.png) [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Post date:** [July 13, 2017, 3:08pm UTC](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546/26 "2017-07-13T15:08:16Z")

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I managed to fix the issue by rotating the structure before triangulation so that the contour normals align with the z-axis, and then rotating back afterwards.

Let me know if this fixes your issue, or if you have any other problems!

![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/e/4e6357c3b022d0acde8e14c8245d2fec9f14acbb.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:** [July 13, 2017, 3:36pm UTC](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546/27 "2017-07-13T15:36:26Z")

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@Sunderlandkyl - Is the fix included in today’s nightly build?

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**Author:** ![Sunderlandkyl](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sunderlandkyl/32/79987_2.png) [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Post date:** [July 13, 2017, 3:39pm UTC](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546/28 "2017-07-13T15:39:57Z")

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@lassoan Yes, it should be included in the next nightly.

[Previous page](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546.md?page=1)