# Support

**URL:** https://discourse.slicer.org/c/support/11.md?no_subcategories=false&page=30

[Latest](https://discourse.slicer.org/latest.md) · [Categories](https://discourse.slicer.org/categories.md) · [Tags](https://discourse.slicer.org/tags.md)

**Page:** 31

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## [Programmatically controlling extensions via separate scripted extension](https://discourse.slicer.org/t/programmatically-controlling-extensions-via-separate-scripted-extension/44154)

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**Author:** [@ruffsl](https://discourse.slicer.org/u/ruffsl)\
**Replies:** 3\
**Last updated:** [August 21, 2025, 9:00pm UTC](https://discourse.slicer.org/t/programmatically-controlling-extensions-via-separate-scripted-extension/44154 "2025-08-21T21:00:10Z")

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Is it possible to programmatically control the state of other 3D Slicer extensions via my own scripted extension using the python API? Such as trigger UI events or update their internal state? E.g: when restoring Slicer…

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## [3D View - shift all volumes at once](https://discourse.slicer.org/t/3d-view-shift-all-volumes-at-once/44165)

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**Author:** [@gambix](https://discourse.slicer.org/u/gambix)\
**Replies:** 2\
**Last updated:** [August 21, 2025, 8:23pm UTC](https://discourse.slicer.org/t/3d-view-shift-all-volumes-at-once/44165 "2025-08-21T20:23:40Z")

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Hi. I very recently started to (try) to use slicer, so lots to learn yet.. I use it to visualise core samples, and I have a collection of a 1m object that is split into different dicom volumes. That is the way i got the…

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## [3D plane visibility remains](https://discourse.slicer.org/t/3d-plane-visibility-remains/44133)

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**Author:** [@bserrano](https://discourse.slicer.org/u/bserrano)\
**Replies:** 2\
**Last updated:** [August 21, 2025, 7:59am UTC](https://discourse.slicer.org/t/3d-plane-visibility-remains/44133 "2025-08-21T07:59:09Z")

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Hi all, I’m using Slicer 5.8.1 and noticed that when enabling plane visibility in 3D, the frame still remains visible even after I turn visibility off (as shown in the image). Is there a way to remove this frame? Is t…

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## [Can I use fiducial points to cut unwanted portion of mesh?](https://discourse.slicer.org/t/can-i-use-fiducial-points-to-cut-unwanted-portion-of-mesh/44139)

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**Author:** [@Corinthia\_Black](https://discourse.slicer.org/u/Corinthia_Black)\
**Replies:** 1\
**Last updated:** [August 19, 2025, 8:22pm UTC](https://discourse.slicer.org/t/can-i-use-fiducial-points-to-cut-unwanted-portion-of-mesh/44139 "2025-08-19T20:22:52Z")

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Hello everyone, I was wondering if there was a way to use a closed curve to cut out a specific section on a very thin (3 voxels) mesh in 3D Slicer? I essentially want to go from something like the first picture to the s…

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## [Specific Muscle Segmentation](https://discourse.slicer.org/t/specific-muscle-segmentation/40026)

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**Author:** [@kwonheokju](https://discourse.slicer.org/u/kwonheokju)\
**Replies:** 6\
**Last updated:** [August 19, 2025, 7:49pm UTC](https://discourse.slicer.org/t/specific-muscle-segmentation/40026 "2025-08-19T19:49:39Z")

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Hi, I’m a graduate student and I’m splitting my thoracic muscles right now. For now, we are using thresholds provided by Slicer to divide the muscles, and then we are removing the skin muscles and internal organs. For …

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## [Setting up cuda for dental autosegmentator](https://discourse.slicer.org/t/setting-up-cuda-for-dental-autosegmentator/44120)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 1\
**Last updated:** [August 19, 2025, 2:25pm UTC](https://discourse.slicer.org/t/setting-up-cuda-for-dental-autosegmentator/44120 "2025-08-19T14:25:41Z")

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i need help for setting up cuda for dental autosegmentator. not sure what the steps needed

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## [Request for evidence supporting the use of TotalSegmentator's tissue types task for body composition research](https://discourse.slicer.org/t/request-for-evidence-supporting-the-use-of-totalsegmentators-tissue-types-task-for-body-composition-research/43791)

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**Author:** [@Seok\_Jin\_Hong](https://discourse.slicer.org/u/Seok_Jin_Hong)\
**Replies:** 2\
**Last updated:** [August 19, 2025, 1:07pm UTC](https://discourse.slicer.org/t/request-for-evidence-supporting-the-use-of-totalsegmentators-tissue-types-task-for-body-composition-research/43791 "2025-08-19T13:07:29Z")

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I’m planning to write a research paper that uses the tissue types task of the TotalSegmentator module in 3D Slicer to perform automated body composition segmentation, particularly focusing on structures such as visceral …

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## [Dental Segmentator Error](https://discourse.slicer.org/t/dental-segmentator-error/41399)

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**Author:** [@mraihan](https://discourse.slicer.org/u/mraihan)\
**Replies:** 19\
**Last updated:** [August 19, 2025, 5:56am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399 "2025-08-19T05:56:42Z")

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Hi, I am unable to use the Dental Segmentator module. I am using slicer 5.8, Pytorch version is 2.6.0 + cu118. I have tried manually downloading the weights and adding it to the Recources/ML folder. However, I am still …

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## [3DView side-by-side half](https://discourse.slicer.org/t/3dview-side-by-side-half/44129)

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**Author:** [@lhefeng662](https://discourse.slicer.org/u/lhefeng662)\
**Replies:** 0\
**Last updated:** [August 19, 2025, 2:59am UTC](https://discourse.slicer.org/t/3dview-side-by-side-half/44129 "2025-08-19T02:59:52Z")

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How to change the original 3DView in the Slicer interface to “side by side half wide output”. Then move this view separately to the expansion screen

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## [Quantifying Mouse Lung microCT Scans](https://discourse.slicer.org/t/quantifying-mouse-lung-microct-scans/14170)

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**Author:** [@DeeMos](https://discourse.slicer.org/u/DeeMos)\
**Replies:** 5\
**Last updated:** [August 18, 2025, 8:56pm UTC](https://discourse.slicer.org/t/quantifying-mouse-lung-microct-scans/14170 "2025-08-18T20:56:24Z")

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Hello. I have a series of mouse lung microCT scans that I’ve obtained using a Perkin Elmer microCT scanner. Using the DICOM files from these scans I am trying to quantify different aspects of the mouse lung; specifically…

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## [SampleData download is failing on MacOS preview](https://discourse.slicer.org/t/sampledata-download-is-failing-on-macos-preview/44123)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 0\
**Last updated:** [August 18, 2025, 5:09pm UTC](https://discourse.slicer.org/t/sampledata-download-is-failing-on-macos-preview/44123 "2025-08-18T17:09:36Z")

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This has been going on for a while. I am posting here to increase its visibility: Requesting download CTP-cardio.seq.nrrd from https://github.com/Slicer/SlicerDataStore/releases/download/SHA256/7fbb6ad0aed9c00820d66e1…

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## [Segmentation export to DICOM-RT](https://discourse.slicer.org/t/segmentation-export-to-dicom-rt/44099)

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**Author:** [@CSalt](https://discourse.slicer.org/u/CSalt)\
**Replies:** 2\
**Last updated:** [August 18, 2025, 10:04am UTC](https://discourse.slicer.org/t/segmentation-export-to-dicom-rt/44099 "2025-08-18T10:04:00Z")

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Hello, I have segmentations from PET dicom source images that I would like to export as DICOM-RT files. I have the extension SlicerRT. Is this possible?

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## [Exporting Total Segmentator Structures to RTstruct for MIM Maestro/Monaco](https://discourse.slicer.org/t/exporting-total-segmentator-structures-to-rtstruct-for-mim-maestro-monaco/44116)

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**Author:** [@Shmarvinoid](https://discourse.slicer.org/u/Shmarvinoid)\
**Replies:** 2\
**Last updated:** [August 18, 2025, 9:00am UTC](https://discourse.slicer.org/t/exporting-total-segmentator-structures-to-rtstruct-for-mim-maestro-monaco/44116 "2025-08-18T09:00:14Z")

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Dear Support Team, Good afternoon! Could you please assist me in exporting a set of structures generated by Total Segmentator into the RTstruct format for further use in MIM Maestro or Monaco? I have the Slicer RT modu…

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## [Create Infinite Medical Imaging Data With Generative AI](https://discourse.slicer.org/t/create-infinite-medical-imaging-data-with-generative-ai/28546)

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**Author:** [@mau\_igna\_06](https://discourse.slicer.org/u/mau_igna_06)\
**Replies:** 5\
**Last updated:** [August 18, 2025, 7:44am UTC](https://discourse.slicer.org/t/create-infinite-medical-imaging-data-with-generative-ai/28546 "2025-08-18T07:44:59Z")

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RadImageGAN: Multi-Modal Generative AI for Medical Imaging \[S51264\] Related links: Nvidia said: We introduce RadImageGAN, a new multi-modal (CT/MR/ultrasound) generative AI for radiology capable of g…

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## [Monailabel X-ray 2D Segmentation Apps](https://discourse.slicer.org/t/monailabel-x-ray-2d-segmentation-apps/44105)

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**Author:** [@4Vaqrant](https://discourse.slicer.org/u/4Vaqrant)\
**Replies:** 0\
**Last updated:** [August 16, 2025, 11:57am UTC](https://discourse.slicer.org/t/monailabel-x-ray-2d-segmentation-apps/44105 "2025-08-16T11:57:10Z")

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I’m currently working on an X-ray segmentation project, aiming to perform semantic segmentation. My dataset is in .nii format and contains 3 different labels. I’ve completed the labeling process and now have around 60 l…

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## [How to reset and re-initialize the slice plane in 3D Slicer](https://discourse.slicer.org/t/how-to-reset-and-re-initialize-the-slice-plane-in-3d-slicer/44103)

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**Author:** [@mdc041481](https://discourse.slicer.org/u/mdc041481)\
**Replies:** 0\
**Last updated:** [August 16, 2025, 11:55am UTC](https://discourse.slicer.org/t/how-to-reset-and-re-initialize-the-slice-plane-in-3d-slicer/44103 "2025-08-16T11:55:17Z")

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Hello, I’m fairly new to using 3D Slicer, so I’m finding it a bit challenging. First, in 3D Slicer, which button should I press to reset any rotations or WW/WL adjustments I’ve made? Also, when I adjust the Slice Plane a…

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## [Using os.startfile to open Excel but Slicer killed itself](https://discourse.slicer.org/t/using-os-startfile-to-open-excel-but-slicer-killed-itself/44095)

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**Author:** [@aiden.zhu](https://discourse.slicer.org/u/aiden.zhu)\
**Replies:** 0\
**Last updated:** [August 15, 2025, 3:16pm UTC](https://discourse.slicer.org/t/using-os-startfile-to-open-excel-but-slicer-killed-itself/44095 "2025-08-15T15:16:59Z")

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Operating system: Windows 11 Slicer version: 5.8.1 Expected behavior: open a csv-file via Excel Actual behavior: After Excel opens the file, Slicer-3D kills itself (crash?). if self.flt\_OpenExcelNow\_CheckBox.isChec…

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## [How to Measure the Perimeter of Slices from a Full-Body 3D Model](https://discourse.slicer.org/t/how-to-measure-the-perimeter-of-slices-from-a-full-body-3d-model/43723)

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**Author:** [@yoshi](https://discourse.slicer.org/u/yoshi)\
**Replies:** 6\
**Last updated:** [August 15, 2025, 5:07am UTC](https://discourse.slicer.org/t/how-to-measure-the-perimeter-of-slices-from-a-full-body-3d-model/43723 "2025-08-15T05:07:41Z")

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Hi everyone, I’m new to 3D Slicer. I have a full-body 3D STL model and would like to display slice images at arbitrary positions (see attached picture) and obtain both the perimeter and area of each slice. I’ve foun…

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## [Oropharyngeal airway segmentation](https://discourse.slicer.org/t/oropharyngeal-airway-segmentation/43871)

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**Author:** [@bilbro](https://discourse.slicer.org/u/bilbro)\
**Replies:** 5\
**Last updated:** [August 14, 2025, 7:38pm UTC](https://discourse.slicer.org/t/oropharyngeal-airway-segmentation/43871 "2025-08-14T19:38:41Z")

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Can somebody help me how to segment oropharyngeal airway in the 3D slicer. Thank you

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## [Questions of overshading of Grown from seeds option to build up bronchus model](https://discourse.slicer.org/t/questions-of-overshading-of-grown-from-seeds-option-to-build-up-bronchus-model/44042)

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**Author:** [@jamesgyh](https://discourse.slicer.org/u/jamesgyh)\
**Replies:** 7\
**Last updated:** [August 14, 2025, 12:29pm UTC](https://discourse.slicer.org/t/questions-of-overshading-of-grown-from-seeds-option-to-build-up-bronchus-model/44042 "2025-08-14T12:29:03Z")

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Hi everyone here, after I checked the video https://www.youtube.com/watch?v=9iiOBmaP8bA of growing from seeds, I immediately started up my trial on my CT case, however, even though I zoomed in a lot on the small bronchi,…

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## [Shaped-based or label gaussian interpolator for segmentation upsampling](https://discourse.slicer.org/t/shaped-based-or-label-gaussian-interpolator-for-segmentation-upsampling/44060)

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**Author:** [@sulli419](https://discourse.slicer.org/u/sulli419)\
**Replies:** 3\
**Last updated:** [August 13, 2025, 6:02pm UTC](https://discourse.slicer.org/t/shaped-based-or-label-gaussian-interpolator-for-segmentation-upsampling/44060 "2025-08-13T18:02:32Z")

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For a 3d volume of low resolution images, I have 3 different segmented classes. Because of the low resolution, the edges of the segments look rather jagged. I know that in fact, the ground truth of my image has rather sm…

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## [Segmentation clipping on the toolbar](https://discourse.slicer.org/t/segmentation-clipping-on-the-toolbar/44068)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 0\
**Last updated:** [August 13, 2025, 3:00pm UTC](https://discourse.slicer.org/t/segmentation-clipping-on-the-toolbar/44068 "2025-08-13T15:00:34Z")

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i think that segmentation clipping on the toolbar, its amazing feature that discovered by mistake . it shoulde accessoible for one toggling . a plus would be allowing a cusomt plane clipping.

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## [Packaged tar file of an extension does not contain any executable](https://discourse.slicer.org/t/packaged-tar-file-of-an-extension-does-not-contain-any-executable/44066)

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**Author:** [@Victor\_Wayne](https://discourse.slicer.org/u/Victor_Wayne)\
**Replies:** 0\
**Last updated:** [August 13, 2025, 11:51am UTC](https://discourse.slicer.org/t/packaged-tar-file-of-an-extension-does-not-contain-any-executable/44066 "2025-08-13T11:51:13Z")

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Hello, I am trying to package my extension for distribution. I created a release folder and built the extension using make package. It gave me one tar file. But when I extract it I am not seeing any executable. I insta…

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## [\[DICOM to NRRD Converter\] A Python 3 - based script for converting DICOM to nrrd](https://discourse.slicer.org/t/dicom-to-nrrd-converter-a-python-3-based-script-for-converting-dicom-to-nrrd/44005)

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**Author:** [@Unicom](https://discourse.slicer.org/u/Unicom)\
**Replies:** 7\
**Last updated:** [August 13, 2025, 3:20am UTC](https://discourse.slicer.org/t/dicom-to-nrrd-converter-a-python-3-based-script-for-converting-dicom-to-nrrd/44005 "2025-08-13T03:20:12Z")

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\[DICOM to NRRD Converter\] A Python 3 - based script for converting DICOM to nrrd Currently, there are no very good methods or extensions available for efficient loading of large-size DICOM data. Spending some time conver…

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## [Endocast from STL](https://discourse.slicer.org/t/endocast-from-stl/43450)

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**Author:** [@Samino](https://discourse.slicer.org/u/Samino)\
**Replies:** 7\
**Last updated:** [August 12, 2025, 12:35pm UTC](https://discourse.slicer.org/t/endocast-from-stl/43450 "2025-08-12T12:35:11Z")

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Hi Is there a way I can generate an endocast from an STL file? The cavity I want to use for generating the endocast has external openings. Any help would be highly appreciated! TIA

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## [Wrap Solidify Too Smooth - Troubleshooting help](https://discourse.slicer.org/t/wrap-solidify-too-smooth-troubleshooting-help/44048)

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**Author:** [@PitaChib](https://discourse.slicer.org/u/PitaChib)\
**Replies:** 2\
**Last updated:** [August 11, 2025, 8:24pm UTC](https://discourse.slicer.org/t/wrap-solidify-too-smooth-troubleshooting-help/44048 "2025-08-11T20:24:11Z")

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I work with extracting endocasts from skull ct scans. I have a protocol I follow that basically use wrap solidify with split cavities at 1mm. I pretty much do this every time with slight fluctuation with the split cavity…

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## [Unknown Transformation - Canon 3D Ultrasound](https://discourse.slicer.org/t/unknown-transformation-canon-3d-ultrasound/44046)

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**Author:** [@Adam\_Mcarthur](https://discourse.slicer.org/u/Adam_Mcarthur)\
**Replies:** 1\
**Last updated:** [August 11, 2025, 6:09pm UTC](https://discourse.slicer.org/t/unknown-transformation-canon-3d-ultrasound/44046 "2025-08-11T18:09:40Z")

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Hey Folks, I am trying to get the 3D Volume from proprietary Canon 3D Ultrasounds. I have made a lot of progress, using a custom version of RawImageGuess. I have got pretty far, but am stuck with this specific problem: …

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## [Abnormal stomach or reconstruction error in the total segmentation extension?](https://discourse.slicer.org/t/abnormal-stomach-or-reconstruction-error-in-the-total-segmentation-extension/44045)

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**Author:** [@Benny\_Zamir](https://discourse.slicer.org/u/Benny_Zamir)\
**Replies:** 0\
**Last updated:** [August 11, 2025, 3:07pm UTC](https://discourse.slicer.org/t/abnormal-stomach-or-reconstruction-error-in-the-total-segmentation-extension/44045 "2025-08-11T15:07:40Z")

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hi I would like to know if the stomach reconstruction is good or bad, cause the stomach structure is abnormal?

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## [DICOM Image Spacing Issue at Z](https://discourse.slicer.org/t/dicom-image-spacing-issue-at-z/44025)

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**Author:** [@txuh](https://discourse.slicer.org/u/txuh)\
**Replies:** 6\
**Last updated:** [August 11, 2025, 2:02pm UTC](https://discourse.slicer.org/t/dicom-image-spacing-issue-at-z/44025 "2025-08-11T14:02:14Z")

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I am writing a single DICOM with multiple frames. After loading the dcm file via 3D Slicer (volume), the x/y image spacing is correct which I set the value (0.0195) at tag “0028,0030” (Pixel Spacing). However, the imag…

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## [Issue hiding shapeNodes in a folder via script](https://discourse.slicer.org/t/issue-hiding-shapenodes-in-a-folder-via-script/44023)

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**Author:** [@bserrano](https://discourse.slicer.org/u/bserrano)\
**Replies:** 8\
**Last updated:** [August 11, 2025, 1:27pm UTC](https://discourse.slicer.org/t/issue-hiding-shapenodes-in-a-folder-via-script/44023 "2025-08-11T13:27:44Z")

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Hi all, I’m working with a script that generates several shape nodes, grouped inside a folder. At a certain point in the execution, I want to hide all cylinders in that folder. I’m using the same code that works fine w…

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