# Regarding the unexpected segmentation effects that occur during segmentation of lung tissue using MONAI Auto3DSeg

**URL:** <https://discourse.slicer.org/t/regarding-the-unexpected-segmentation-effects-that-occur-during-segmentation-of-lung-tissue-using-monai-auto3dseg/36952>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [June 22, 2024, 1:31pm UTC](https://discourse.slicer.org/t/regarding-the-unexpected-segmentation-effects-that-occur-during-segmentation-of-lung-tissue-using-monai-auto3dseg/36952 "2024-06-22T13:31:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lirongyaoper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lirongyaoper/32/76806_2.png) [@lirongyaoper](https://discourse.slicer.org/u/lirongyaoper)\
**Post date:** [June 22, 2024, 1:31pm UTC](https://discourse.slicer.org/t/regarding-the-unexpected-segmentation-effects-that-occur-during-segmentation-of-lung-tissue-using-monai-auto3dseg/36952/1 "2024-06-22T13:31:01Z")

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Operating system:ubuntu 24.04  
Slicer version:3D Slicer 5.7.0-2.24-06-06  
Expected behavior:Ensure pulmonary vascular continuity  
Actual behavior:I encountered the following problems when using the Lungs Segmentation model in the MONAI Auto3DSeg segmenter to automatically segment the trachea, pulmonary artery, and pulmonary veins of lung tissue:  
I found that the continuity of pulmonary blood vessels was interrupted in the segmented 3D renderings, especially the continuity of pulmonary veins was very serious.  
I would like to know if our official solution is better? Provide new already trained models? Optimize 3dslider kernel?  
Thank you and I look forward to your replies. Good luck to all the teachers out there.

 ![Screenshot from 2024-06-22 21-03-02](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/0/0/003d633f4f2e5e30556926437e2f78fba3d6c940.jpeg)

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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:** [June 23, 2024, 10:34pm UTC](https://discourse.slicer.org/t/regarding-the-unexpected-segmentation-effects-that-occur-during-segmentation-of-lung-tissue-using-monai-auto3dseg/36952/2 "2024-06-23T22:34:16Z")

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Could you manually segment what you would expect to see and post screenshots side by side with the current segmentation result?

Would you be able to do this enhancement on 50-100 images and share the results with us so that we can fine-tune the segmentation model?