# How to show DICOM and the corresponding RT STRUCTURE?

**URL:** <https://discourse.slicer.org/t/how-to-show-dicom-and-the-corresponding-rt-structure/1562>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [November 30, 2017, 12:59am UTC](https://discourse.slicer.org/t/how-to-show-dicom-and-the-corresponding-rt-structure/1562 "2017-11-30T00:59:32Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![glhfgg1024](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/glhfgg1024/32/947_2.png) [@glhfgg1024](https://discourse.slicer.org/u/glhfgg1024)\
**Post date:** [November 30, 2017, 12:59am UTC](https://discourse.slicer.org/t/how-to-show-dicom-and-the-corresponding-rt-structure/1562/1 "2017-11-30T00:59:32Z")

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Hello everyone, I’m a newbie to Slicer.

I have one DICOM directory where many .dcm files are there and another DICOM RT STRUCTURE directory where one .dcm file is there. I want to load the two directories into Slicer and shown in 3-D view.

I have tried to set the Options into “Scalar Overlay”, but it didn’t work. How could I do next? Thanks a lot!

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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:** [November 30, 2017, 4:16am UTC](https://discourse.slicer.org/t/how-to-show-dicom-and-the-corresponding-rt-structure/1562/2 "2017-11-30T04:16:26Z")

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Install SlicerRT extension, import the data into Slicer by drag-and-dropping the entire folder to the Slicer application window, and load it using DICOM module. RTSTRUCT will be loaded as segmentation and you can show that in 3D and slice views.

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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:** [December 3, 2017, 6:14am UTC](https://discourse.slicer.org/t/how-to-show-dicom-and-the-corresponding-rt-structure/1562/4 "2017-12-03T06:14:21Z")

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A post was merged into an existing topic: [Convert DICOM-RTSTRUCT format to Nifti format](https://discourse.slicer.org/t/convert-dicom-rtstruct-format-to-nifti-format/1580)

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**Author:** ![Mgi](https://avatars.discourse-cdn.com/v4/letter/m/b19c9b/32.png) [@Mgi](https://discourse.slicer.org/u/Mgi)\
**Post date:** [December 2, 2020, 12:54pm UTC](https://discourse.slicer.org/t/how-to-show-dicom-and-the-corresponding-rt-structure/1562/5 "2020-12-02T12:54:01Z")

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Hello! I am using the 3D slicer 4.10.2, I followed this sequence but I can’t see the segmentation. Some ideas?

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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:** [December 3, 2020, 3:55am UTC](https://discourse.slicer.org/t/how-to-show-dicom-and-the-corresponding-rt-structure/1562/6 "2020-12-03T03:55:26Z")

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You need to use latest Slicer stable or preview release and install SlicerRT extension.

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<div class="post-metadata">

**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:** [December 5, 2020, 11:05pm UTC](https://discourse.slicer.org/t/how-to-show-dicom-and-the-corresponding-rt-structure/1562/7 "2020-12-05T23:05:50Z")

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A post was split to a new topic: [LongitudinalPETCT extension fails to read DICOM files](https://discourse.slicer.org/t/longitudinalpetct-extension-fails-to-read-dicom-files/14902)