# How to create RTStruct dicom  

**URL:** <https://discourse.slicer.org/t/how-to-create-rtstruct-dicom/7382>\
**Category:** Support\
**Tags:** segmentation, extensions-manager, dicom, radiotherapy, conversion\
**Created:** [July 2, 2019, 3:26pm UTC](https://discourse.slicer.org/t/how-to-create-rtstruct-dicom/7382 "2019-07-02T15:26:31Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![agatte](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/agatte/32/16712_2.png) [@agatte](https://discourse.slicer.org/u/agatte)\
**Post date:** [July 2, 2019, 3:26pm UTC](https://discourse.slicer.org/t/how-to-create-rtstruct-dicom/7382/1 "2019-07-02T15:26:31Z")

</div>

Hello,

I have already created labelmap image with segmentation. I would like to export this file to RTStruct.  
I would like to create RTStruct image. Is this possible in Slicer ? In which module ?

I would be appreciate for any info.

Best,  
agatte

---

<div class="post-metadata">

**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [July 2, 2019, 3:39pm UTC](https://discourse.slicer.org/t/how-to-create-rtstruct-dicom/7382/2 "2019-07-02T15:39:24Z")

</div>

Here’s information about DICOM export: [https://www.slicer.org/wiki/Documentation/Nightly/Modules/DICOM#DICOM\_export](https://www.slicer.org/wiki/Documentation/Nightly/Modules/DICOM#DICOM_export)

You need to have a study in the Data module that contains the master volume and the segmentation.

If you have your segmentation as a labelmap node then first you need to convert it to a segmentation node. RIght-click labelmap, then “Convert labelmap to segmentation node”.

---

<div class="post-metadata">

**Author:** ![agatte](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/agatte/32/16712_2.png) [@agatte](https://discourse.slicer.org/u/agatte)\
**Post date:** [July 9, 2019, 7:53am UTC](https://discourse.slicer.org/t/how-to-create-rtstruct-dicom/7382/3 "2019-07-09T07:53:15Z")

</div>

Hi Csaba Pinter,

I have already tried to follow the video youtube tutorial from wiki that you send me.

But it doesn’t work on current version. I followed the tutorial and I can create a dicom series from CT but I cant save RTSTRUCT in Slicer 4.10

 ![exportSegmentationAsRTSTRUCT.png](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/0/8/0868c4f6e0f178fc9f5fe0da0fd3eaa9b98f1226.png)

In tutorial it looked like it is possible to save RTSTRUCT and corresponding CT.

But here I have only one option.

 ![ProblemExportRTSTRUCTdicom.png](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/8/f/8ffcd9ba853e379f121c32fdde2dacbd9bc7f3d8.png)

I would be appreciate for any help please.

Best regards,

agatte

---

<div class="post-metadata">

**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [July 9, 2019, 2:04pm UTC](https://discourse.slicer.org/t/how-to-create-rtstruct-dicom/7382/4 "2019-07-09T14:04:06Z")

</div>

You need to right-click the study in order for the RT DICOM plugin to discover all the nodes.  
I think it should be able to find the segmentation even under the volume, but let me know otherwise.