# Convert RTStruct to DICOM SEG

**URL:** https://discourse.slicer.org/t/convert-rtstruct-to-dicom-seg/45657
**Category:** Support
**Tags:** dicom
**Created:** [January 2, 2026, 3:16am UTC](https://discourse.slicer.org/t/convert-rtstruct-to-dicom-seg/45657 "2026-01-02T03:16:19Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![SaraROMarques](https://avatars.discourse-cdn.com/v4/letter/s/22d042/32.png) [@SaraROMarques](https://discourse.slicer.org/u/SaraROMarques)
#### Post date: [January 2, 2026, 3:16am UTC](https://discourse.slicer.org/t/convert-rtstruct-to-dicom-seg/45657/1 "2026-01-02T03:16:20Z")

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Hello, how can I convert RTStruct to DICOM Seg? I’m having some difficulties…

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### 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: [January 9, 2026, 2:48pm UTC](https://discourse.slicer.org/t/convert-rtstruct-to-dicom-seg/45657/2 "2026-01-09T14:48:09Z")

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You can load the RTStruct in Slicer if you have the SlicerRT extension installed. Then as far as I know you can export it to DICOM SEG if the QuantitativeReporting extension is installed, but I have never done this myself. See detailed information on DICOM exporting here: [DICOM — 3D Slicer documentation](https://slicer.readthedocs.io/en/latest/user_guide/modules/dicom.html#export-data-from-the-scene-to-dicom-database)