# Lung lobe input segment is missing

**URL:** https://discourse.slicer.org/t/lung-lobe-input-segment-is-missing/38540
**Category:** Support
**Tags:** segmentation, lungctanalyzer, lung
**Created:** [September 25, 2024, 7:51pm UTC](https://discourse.slicer.org/t/lung-lobe-input-segment-is-missing/38540 "2024-09-25T19:51:07Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![Daniel\_Lo](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/daniel_lo/32/77935_2.png) [@Daniel\_Lo](https://discourse.slicer.org/u/Daniel_Lo)
#### Post date: [September 23, 2024, 6:37am UTC](https://discourse.slicer.org/t/lung-lobe-input-segment-is-missing/38540/1 "2024-09-23T06:37:44Z")

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![Screenshot 2024-09-23 at 14.37.00](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/7/27df21e0863819382c7316e2ae3945aa0373465e.png)

1. how to solve this ? i was using AI mode
2. how to solve GPU issue with macos system, is this model only linked to pytorchCUDA?

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### Author: ![Daniel\_Lo](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/daniel_lo/32/77935_2.png) [@Daniel\_Lo](https://discourse.slicer.org/u/Daniel_Lo)
#### Post date: [September 25, 2024, 7:51pm UTC](https://discourse.slicer.org/t/lung-lobe-input-segment-is-missing/38540/2 "2024-09-25T19:51:07Z")

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![Screenshot 2024-09-26 at 03.49.33](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/8/78290711f8e3a8ce59b6cf9f67a9bd5146d950a7.png)  
hi, any idea how to solve this ? i have tried to use interactive lobe segmentation, however doesnt solve this

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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: [September 25, 2024, 7:57pm UTC](https://discourse.slicer.org/t/lung-lobe-input-segment-is-missing/38540/3 "2024-09-25T19:57:52Z")

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In general, macOS is still lagging behind in AI segmentation. CUDA is only available for NVIDIA GPUs, but macOS is not compatible with NVIDIA GPUs. If you use any AI models that require CUDA, they will not work on your macOS computer.

TotalSegmentator and MONAIAuto3DSeg works on all platforms. You can use these Slicer extensions to segment lung lobes. They work much faster with a discrete GPU, but they are usable without GPU, too.

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### Author: ![Daniel\_Lo](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/daniel_lo/32/77935_2.png) [@Daniel\_Lo](https://discourse.slicer.org/u/Daniel_Lo)
#### Post date: [September 25, 2024, 8:03pm UTC](https://discourse.slicer.org/t/lung-lobe-input-segment-is-missing/38540/4 "2024-09-25T20:03:54Z")

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Thank you. my lung cases are generally pretty bad, consolidations and collapse are everywhere, even mediastinum are pulled over due to collapses. i wonder if those modules can sort it out. Let me try it out.

 ![Screenshot 2024-09-26 at 04.05.21](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/8/b8c52a65f8734bdf08fecdeaf571df1b731a317a.jpeg) this happens for monai3Dautoseg  
total seg as well

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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: [September 25, 2024, 8:09pm UTC](https://discourse.slicer.org/t/lung-lobe-input-segment-is-missing/38540/5 "2024-09-25T20:09:08Z")

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See trobleshooting instructions [here](https://github.com/lassoan/SlicerTotalSegmentator?tab=readme-ov-file#troubleshooting).