# Is it possible to calculate airway length and number of airway tree generation with the help of slicer

**URL:** <https://discourse.slicer.org/t/is-it-possible-to-calculate-airway-length-and-number-of-airway-tree-generation-with-the-help-of-slicer/5075>\
**Category:** Support\
**Created:** [December 14, 2018, 7:12am UTC](https://discourse.slicer.org/t/is-it-possible-to-calculate-airway-length-and-number-of-airway-tree-generation-with-the-help-of-slicer/5075 "2018-12-14T07:12:03Z")\
**Posts on this page:** 6\
**Page:** 2

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**Author:** ![anitakh1](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/anitakh1/32/3350_2.png) [@anitakh1](https://discourse.slicer.org/u/anitakh1)\
**Post date:** [May 6, 2019, 5:07am UTC](https://discourse.slicer.org/t/is-it-possible-to-calculate-airway-length-and-number-of-airway-tree-generation-with-the-help-of-slicer/5075/21 "2019-05-06T05:07:31Z")

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thank you sooooo much

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**Author:** ![joshWilliams](https://avatars.discourse-cdn.com/v4/letter/j/bb73d2/32.png) [@joshWilliams](https://discourse.slicer.org/u/joshWilliams)\
**Post date:** [July 6, 2019, 2:14pm UTC](https://discourse.slicer.org/t/is-it-possible-to-calculate-airway-length-and-number-of-airway-tree-generation-with-the-help-of-slicer/5075/22 "2019-07-06T14:14:14Z")

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Hi Anitakh,

How did you segment the airways you show in this image? I am having difficulty segmenting below the trache and main bronchus. To segment the smaller airways is quite challenging.

Any help would be greatly appreciated.

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**Author:** ![anitakh1](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/anitakh1/32/3350_2.png) [@anitakh1](https://discourse.slicer.org/u/anitakh1)\
**Post date:** [July 8, 2019, 11:57am UTC](https://discourse.slicer.org/t/is-it-possible-to-calculate-airway-length-and-number-of-airway-tree-generation-with-the-help-of-slicer/5075/23 "2019-07-08T11:57:53Z")

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you can do it by region growing technique or follow the method given in a paper by Deniz Akykac et al IEEE transaction 2003. you can follow other methods given in different methods.

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**Author:** ![rbumm](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/rbumm/32/9404_2.png) [@rbumm](https://discourse.slicer.org/u/rbumm)\
**Post date:** [July 8, 2019, 3:47pm UTC](https://discourse.slicer.org/t/is-it-possible-to-calculate-airway-length-and-number-of-airway-tree-generation-with-the-help-of-slicer/5075/24 "2019-07-08T15:47:47Z")

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> [@anitakh1](#):
>
> Deniz Akykac et al IEEE transaction 2003

Hi,

I am having the same problem.  
There are several questions.  
Could you describe a bit more in detail how you segment the smaller airways ?  
How do you use the region growing technique ?  
Do you start with the airway segmentation of the chest imaging suite ?

Where can I find information about the Akykac method ?

Thank you very much.

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**Author:** ![anitakh1](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/anitakh1/32/3350_2.png) [@anitakh1](https://discourse.slicer.org/u/anitakh1)\
**Post date:** [July 26, 2019, 8:55am UTC](https://discourse.slicer.org/t/is-it-possible-to-calculate-airway-length-and-number-of-airway-tree-generation-with-the-help-of-slicer/5075/25 "2019-07-26T08:55:52Z")

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sir, is it possible to put different points of different colors on airway segmented tree. this will help to know total branches in each generation.! i am showing sample in pic[marking\_branches|547x500](https://discourse.slicer.org/404)

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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:** [July 26, 2019, 12:01pm UTC](https://discourse.slicer.org/t/is-it-possible-to-calculate-airway-length-and-number-of-airway-tree-generation-with-the-help-of-slicer/5075/26 "2019-07-26T12:01:49Z")

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You can place markups fiducial points. In each markups node you can specify two colors (selected and non-selected). If you need more colors then you can create more markups nodes (or write a script that observes point positions and places a differently colored sphere at each point position).

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