# Create STL RT Structures with MRI  to DICOM RT Strcutures

**URL:** <https://discourse.slicer.org/t/create-stl-rt-structures-with-mri-to-dicom-rt-strcutures/44104>\
**Category:** Support\
**Created:** [August 16, 2025, 11:55am UTC](https://discourse.slicer.org/t/create-stl-rt-structures-with-mri-to-dicom-rt-strcutures/44104 "2025-08-16T11:55:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ar24](https://avatars.discourse-cdn.com/v4/letter/a/41988e/32.png) [@ar24](https://discourse.slicer.org/u/ar24)\
**Post date:** [August 16, 2025, 11:55am UTC](https://discourse.slicer.org/t/create-stl-rt-structures-with-mri-to-dicom-rt-strcutures/44104/1 "2025-08-16T11:55:58Z")

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I like to see if I can use 3D slicer to convert STL RT file format on MRI to Dicom File Format for Treatment planning

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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:** [August 22, 2025, 9:41am UTC](https://discourse.slicer.org/t/create-stl-rt-structures-with-mri-to-dicom-rt-strcutures/44104/2 "2025-08-22T09:41:23Z")

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Please elaborate more on what you need. For starters, I don’t know what is “STL RT file format on MRI”. Thank you!