# Airway analysis, computing cross-sectional area

**URL:** <https://discourse.slicer.org/t/airway-analysis-computing-cross-sectional-area/40940>\
**Category:** Support\
**Created:** [January 3, 2025, 8:01am UTC](https://discourse.slicer.org/t/airway-analysis-computing-cross-sectional-area/40940 "2025-01-03T08:01:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dcg494](https://avatars.discourse-cdn.com/v4/letter/d/cdc98d/32.png) [@dcg494](https://discourse.slicer.org/u/dcg494)\
**Post date:** [January 3, 2025, 8:01am UTC](https://discourse.slicer.org/t/airway-analysis-computing-cross-sectional-area/40940/1 "2025-01-03T08:01:20Z")

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Hi everyone, i would like to be able to replicate what another programme can do to analyze the airways in terms of cross-sectional area, including pinpointing the minimum cross-sectional airway, for the upper airway (see top image).

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/7/97529fc526afd45a0fa80904e9dabd52bb17b452.jpeg)

What i’ve been able to do so far is just graph the cross-sectional area of a segment of the UA, which is good (see below picture). But is there a way to map these findings onto the segment in a color-coded map ? Or is there another module that will do a better job altogether ?

Thanks a lot for any and all help on this

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/6/e/6e9d12ab0acb392adf36c5a6ff6b7ded3b29b9fa.jpeg)

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**Author:** ![chir.set](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/chir.set/32/66982_2.png) [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Post date:** [January 3, 2025, 9:27am UTC](https://discourse.slicer.org/t/airway-analysis-computing-cross-sectional-area/40940/2 "2025-01-03T09:27:45Z")

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> [@dcg494](#):
>
> another module

If you extract a centerline with the ‘Extract centerline’ module of the SlicerVMTK extension, you could next investigate the ‘Cross-section analysis’ module to get the minimum area. It won’t do any color mapping of the segment itself however. But you can do such a mapping with the centerline model.