# Airway segmentation

**URL:** <https://discourse.slicer.org/t/airway-segmentation/8940>\
**Category:** SlicerCIP\
**Tags:** segmentation, dicom, 3d-printing\
**Created:** [October 29, 2019, 12:09pm UTC](https://discourse.slicer.org/t/airway-segmentation/8940 "2019-10-29T12:09:00Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Kedar\_Hibare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/kedar_hibare/32/4902_2.png) [@Kedar\_Hibare](https://discourse.slicer.org/u/Kedar_Hibare)\
**Post date:** [October 29, 2019, 12:09pm UTC](https://discourse.slicer.org/t/airway-segmentation/8940/1 "2019-10-29T12:09:01Z")

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Hi, I am new to 3D slicer and I am learning by trial and error airway segmentation so that I can design airway prosthesis (airway stents). I wish to 3D print the same after doing so. I haven’t been able to master it with accuracy. Any help with video links / ppts would be appreciated to do (airway segmentation) this as accurately as possible. Thank you in advance  
Regards  
KrH

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**Author:** ![timeanddoctor](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/timeanddoctor/32/5839_2.png) [@timeanddoctor](https://discourse.slicer.org/u/timeanddoctor)\
**Post date:** [October 29, 2019, 1:42pm UTC](https://discourse.slicer.org/t/airway-segmentation/8940/2 "2019-10-29T13:42:28Z")

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Did you segment the airway and smoothing it from the DICOMs?

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**Author:** ![Kedar\_Hibare](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/kedar_hibare/32/4902_2.png) [@Kedar\_Hibare](https://discourse.slicer.org/u/Kedar_Hibare)\
**Post date:** [October 30, 2019, 7:33am UTC](https://discourse.slicer.org/t/airway-segmentation/8940/3 "2019-10-30T07:33:22Z")

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I have gone through tutorials and my workflow so far:

1. Crop and identify ROI
2. Segment Editor and create 2 segments one trachea and other
3. Use paint and grow seed tools and create 3D

I am yet to learn to make it hollow and print it…

My plan is to use it to redesign tracheas with stenosis / tumors and be able to see if we could predict the end of procedure / prosthesis insertions like stents accurately to the anatomy

Can any of you help me with more steps to be able to do this better?

 ![46%20AM](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/f/c/fc2831cbabc577a39cafc9af5271987e52d75a8e.jpeg)

Regards  
KrH

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**Author:** ![Leon](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/leon/32/1468_2.png) [@Leon](https://discourse.slicer.org/u/Leon)\
**Post date:** [October 31, 2019, 12:05pm UTC](https://discourse.slicer.org/t/airway-segmentation/8940/4 "2019-10-31T12:05:07Z")

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Your segmentation looks nice!

You say that your plan is to make it hollow.

- First export it as a STL, which is hollow by itself because it’s only the surface.
- Import the STL into a 3D-modeler (I use Blender).
- Cut of the ends and than you’re left with a hollow construct.
- Use a modifier (in Blender choose ‘Solidify’) and give the STL some thickness and you’re done.
- Export as a STL for printing.

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**Author:** ![Alice](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@Alice](https://discourse.slicer.org/u/Alice)\
**Post date:** [August 3, 2020, 8:19am UTC](https://discourse.slicer.org/t/airway-segmentation/8940/5 "2020-08-03T08:19:58Z")

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Are you using the airway segmentation function?  
If I use THE 3D SLicer with integrated CIP, the error will not be reported. If I use the ordinary 3D SLicer and then load CIP, the error will not be reported. However, the 3D image cannot be displayed and further calculation cannot be carried out