# Covid-19 lesion segmentation

**URL:** <https://discourse.slicer.org/t/covid-19-lesion-segmentation/26542>\
**Category:** Support\
**Created:** [December 1, 2022, 11:01pm UTC](https://discourse.slicer.org/t/covid-19-lesion-segmentation/26542 "2022-12-01T23:01:52Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Nima\_Yousefi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/nima_yousefi/32/66845_2.png) [@Nima\_Yousefi](https://discourse.slicer.org/u/Nima_Yousefi)\
**Post date:** [December 1, 2022, 11:01pm UTC](https://discourse.slicer.org/t/covid-19-lesion-segmentation/26542/1 "2022-12-01T23:01:52Z")

</div>

Hi all

How can I segment these areas and create its masks?

![Screenshot_20221202-011715_Drive](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/5/7/577267a9919600c83eeb19ab630b84fe20a4d8c6.jpeg)

Thanks.

---

<div class="post-metadata">

**Author:** ![jcfr](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jcfr/32/17825_2.png) [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Post date:** [December 2, 2022, 8:04am UTC](https://discourse.slicer.org/t/covid-19-lesion-segmentation/26542/2 "2022-12-02T08:04:11Z")

</div>

If you did not already review the tutorial and video associated with the `Slicer Lung CT Analyzer` extension, you will find [here](https://www.slicer.org/wiki/Documentation/Nightly/Training#Slicer4_Lung_CT_Analyzer) details on how to visualize and quantify infiltration, emphysema and collapsed lung areas in CT datasets acquired on COVID-19 patients.