# Latest

**URL:** https://discourse.slicer.org/latest.md?page=7

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

**Page:** 8

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## [Is there a way to export in 3mf file format?](https://discourse.slicer.org/t/is-there-a-way-to-export-in-3mf-file-format/46130)

<div class="topic-metadata">

**Author:** [@HelloAll](https://discourse.slicer.org/u/HelloAll)\
**Replies:** 7\
**Last updated:** [July 23, 2026, 1:41pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-export-in-3mf-file-format/46130 "2026-07-23T13:41:14Z")

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Hi. I’m new to 3D Slicer. Is there a way to export files in 3mf format to make printing different segments with different colors easier?

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## [PyTorch not working on Intel(R) Core(TM) Ultra 7 155H](https://discourse.slicer.org/t/pytorch-not-working-on-intel-r-core-tm-ultra-7-155h/47724)

<div class="topic-metadata">

**Author:** [@Esteban\_Barreiro](https://discourse.slicer.org/u/Esteban_Barreiro)\
**Replies:** 0\
**Last updated:** [July 23, 2026, 12:48pm UTC](https://discourse.slicer.org/t/pytorch-not-working-on-intel-r-core-tm-ultra-7-155h/47724 "2026-07-23T12:48:39Z")

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Hi community! I can’t run Dental Segmentator on an Intel(R) Core™ Ultra 7 155H, on Slicer v 5.8.1, due to an error on Torch, I have already tried all the troubleshooting and it still not working. Does anyone solve this…

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## [Pytorch extension causes crash (Slicer 5.12.2 on Ubuntu 22.04)](https://discourse.slicer.org/t/pytorch-extension-causes-crash-slicer-5-12-2-on-ubuntu-22-04/47710)

<div class="topic-metadata">

**Author:** [@shai-ikko](https://discourse.slicer.org/u/shai-ikko)\
**Replies:** 5\
**Last updated:** [July 23, 2026, 8:58am UTC](https://discourse.slicer.org/t/pytorch-extension-causes-crash-slicer-5-12-2-on-ubuntu-22-04/47710 "2026-07-23T08:58:41Z")

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Hi, I’m having trouble with the PyTorch extension. On a fresh Slicer 5.12.2 installation, I install the extension, open it, and tell it to install pytorch using the default (automatic) backend. The installation supposed…

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## [Multi slice variable intensity threshold (Grow from seeds)](https://discourse.slicer.org/t/multi-slice-variable-intensity-threshold-grow-from-seeds/47661)

<div class="topic-metadata">

**Author:** [@Sanjib\_Gurung](https://discourse.slicer.org/u/Sanjib_Gurung)\
**Replies:** 1\
**Last updated:** [July 22, 2026, 2:24am UTC](https://discourse.slicer.org/t/multi-slice-variable-intensity-threshold-grow-from-seeds/47661 "2026-07-22T02:24:15Z")

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Hi, I frequently use Grow from Seeds to generate 3D blood pool models from cardiovascular MRI and CT DICOM images. In these datasets, the blood pool intensity (or Hounsfield Units in CT) often varies across different s…

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## [Errores. No funciona nada](https://discourse.slicer.org/t/errores-no-funciona-nada/47706)

<div class="topic-metadata">

**Author:** [@Gonzalo\_Rossel](https://discourse.slicer.org/u/Gonzalo_Rossel)\
**Replies:** 1\
**Last updated:** [July 21, 2026, 5:54pm UTC](https://discourse.slicer.org/t/errores-no-funciona-nada/47706 "2026-07-21T17:54:33Z")

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Problem report for 3D Slicer 5.12.1 win-amd64: \[please describe expectedand actual behavior\] \[DEBUG\]\[Qt\] 20.07.2026 22:50:48 (unknown:0) - Session start time …: 20260720\_225048 \[DEBUG\]\[Qt\] 20.07.2026 22:50:48 (unknow…

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## [How to segment ligaments on 3D T1w MRI images?](https://discourse.slicer.org/t/how-to-segment-ligaments-on-3d-t1w-mri-images/47705)

<div class="topic-metadata">

**Author:** [@LuuTrinh](https://discourse.slicer.org/u/LuuTrinh)\
**Replies:** 0\
**Last updated:** [July 21, 2026, 2:38pm UTC](https://discourse.slicer.org/t/how-to-segment-ligaments-on-3d-t1w-mri-images/47705 "2026-07-21T14:38:12Z")

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Hi everyone, I am working on segmenting ligaments using 3D T1-weighted (T1w) MRI data in 3D Slicer, and I would appreciate some advice on the best workflow/tools for this task.

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## [Freelance Opportunity – 3D Slicer Expert for Dental CBCT Annotation Project](https://discourse.slicer.org/t/freelance-opportunity-3d-slicer-expert-for-dental-cbct-annotation-project/47704)

<div class="topic-metadata">

**Author:** [@Visio](https://discourse.slicer.org/u/Visio)\
**Replies:** 0\
**Last updated:** [July 21, 2026, 2:38pm UTC](https://discourse.slicer.org/t/freelance-opportunity-3d-slicer-expert-for-dental-cbct-annotation-project/47704 "2026-07-21T14:38:07Z")

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Freelance Opportunity – 3D Slicer Expert for Dental CBCT Annotation Project We are looking for an experienced freelancer with hands-on knowledge of 3D Slicer and DICOM/CBCT imaging to support a research project in denta…

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## [PyTomography extension is not compatible with 3D Slicer 5.12.2](https://discourse.slicer.org/t/pytomography-extension-is-not-compatible-with-3d-slicer-5-12-2/47702)

<div class="topic-metadata">

**Author:** [@macp970617](https://discourse.slicer.org/u/macp970617)\
**Replies:** 0\
**Last updated:** [July 21, 2026, 2:37pm UTC](https://discourse.slicer.org/t/pytomography-extension-is-not-compatible-with-3d-slicer-5-12-2/47702 "2026-07-21T14:37:24Z")

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Hello, I am trying to use the PyTomography extension with 3D Slicer version 5.12.2, but the extension does not work. It appears to be incompatible with this version of Slicer. Could you please confirm whether PyTomogra…

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## [Total segmentator module returned with non-zero exit status 1 on to 5.12.1](https://discourse.slicer.org/t/total-segmentator-module-returned-with-non-zero-exit-status-1-on-to-5-12-1/47634)

<div class="topic-metadata">

**Author:** [@Cromwell](https://discourse.slicer.org/u/Cromwell)\
**Replies:** 6\
**Last updated:** [July 21, 2026, 1:07am UTC](https://discourse.slicer.org/t/total-segmentator-module-returned-with-non-zero-exit-status-1-on-to-5-12-1/47634 "2026-07-21T01:07:02Z")

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I’m having problems with the execution of the total segmentator module, I thought it was something installation, as version 5.10 was running I updated to 5.12.1 but it keeps the same error only with this module. I saw th…

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## [Accidentally moving all markups in a pointList](https://discourse.slicer.org/t/accidentally-moving-all-markups-in-a-pointlist/47685)

<div class="topic-metadata">

**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 8\
**Last updated:** [July 20, 2026, 3:05pm UTC](https://discourse.slicer.org/t/accidentally-moving-all-markups-in-a-pointlist/47685 "2026-07-20T15:05:57Z")

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This was happening before but I though it was fixed. I can replicate this on MacOS 5.12.1 middle click and drag, moves the entire pointList. interaction is not enabled, so I would consider this a bug.

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## [2026.07.21 Weekly Meeting](https://discourse.slicer.org/t/2026-07-21-weekly-meeting/47635)

<div class="topic-metadata">

**Author:** [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Replies:** 2\
**Last updated:** [July 20, 2026, 1:54pm UTC](https://discourse.slicer.org/t/2026-07-21-weekly-meeting/47635 "2026-07-20T13:54:23Z")

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Title: 2026.07.21 Weekly Meeting Next Tuesday, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET. Anyone is welcome to join at this link: Google Meet meeting Agenda: Please post to this thr…

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## [Opacity cell - 5.12.2](https://discourse.slicer.org/t/opacity-cell-5-12-2/47652)

<div class="topic-metadata">

**Author:** [@BaptisteSVD](https://discourse.slicer.org/u/BaptisteSVD)\
**Replies:** 4\
**Last updated:** [July 20, 2026, 7:00am UTC](https://discourse.slicer.org/t/opacity-cell-5-12-2/47652 "2026-07-20T07:00:52Z")

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Hi, In Slicer 5.12.2, the per-segment opacity cell in the Segmentations module is no longer editable by mouse click or double-click. Editing only works after pressing F2. Is this intentional or a regression?

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## [Segment tooth enamel and pulp from TotalSegmentator tooth-by-tooth](https://discourse.slicer.org/t/segment-tooth-enamel-and-pulp-from-totalsegmentator-tooth-by-tooth/47637)

<div class="topic-metadata">

**Author:** [@r\_vorup](https://discourse.slicer.org/u/r_vorup)\
**Replies:** 4\
**Last updated:** [July 19, 2026, 6:11pm UTC](https://discourse.slicer.org/t/segment-tooth-enamel-and-pulp-from-totalsegmentator-tooth-by-tooth/47637 "2026-07-19T18:11:58Z")

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Hello all, I have used the TotalSegmentator to segment a CBCT scan of upper and lower jaw, and have gotten each tooth in an individual segment. I now want to split each tooth into dentine and enamel, for them to be 3D p…

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## [Contact information to include within company software catalog](https://discourse.slicer.org/t/contact-information-to-include-within-company-software-catalog/47676)

<div class="topic-metadata">

**Author:** [@Hguidoc](https://discourse.slicer.org/u/Hguidoc)\
**Replies:** 2\
**Last updated:** [July 18, 2026, 5:24pm UTC](https://discourse.slicer.org/t/contact-information-to-include-within-company-software-catalog/47676 "2026-07-18T17:24:37Z")

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Hello friends! I am the service desk agent and the one in charge at my location of the department. I work for a clinical company, and I want to include the Slicer software for our technicians to work on CB/CT files. As…

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## [Slicer crashes on startup due to SlicerVMTK extension](https://discourse.slicer.org/t/slicer-crashes-on-startup-due-to-slicervmtk-extension/47660)

<div class="topic-metadata">

**Author:** [@aabrown100-git](https://discourse.slicer.org/u/aabrown100-git)\
**Replies:** 6\
**Last updated:** [July 18, 2026, 3:35pm UTC](https://discourse.slicer.org/t/slicer-crashes-on-startup-due-to-slicervmtk-extension/47660 "2026-07-18T15:35:22Z")

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Issue: On Slicer 5.12.2, Slicer crashes on startup after restarting Slicer following installation of SlicerVMTK. The startup log shows module loading failures in SlicerVMTK due to unresolved dylib dependencies, including…

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## [Fail to Compute Results using TotalSegmentator (returned non-zero exist status 1)](https://discourse.slicer.org/t/fail-to-compute-results-using-totalsegmentator-returned-non-zero-exist-status-1/47404)

<div class="topic-metadata">

**Author:** [@qn\_Huynh](https://discourse.slicer.org/u/qn_Huynh)\
**Replies:** 2\
**Last updated:** [July 18, 2026, 2:38am UTC](https://discourse.slicer.org/t/fail-to-compute-results-using-totalsegmentator-returned-non-zero-exist-status-1/47404 "2026-07-18T02:38:40Z")

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Hello Slicer Support! I have been trying to run TotalSegmentator, but it has been failing. The Slicer Error message that I have been receiving states, “… returned non-zero exit status 1.” Traceback (most recent call la…

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## [2026.07.14 Weekly Meeting](https://discourse.slicer.org/t/2026-07-14-weekly-meeting/47579)

<div class="topic-metadata">

**Author:** [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Replies:** 12\
**Last updated:** [July 17, 2026, 5:38pm UTC](https://discourse.slicer.org/t/2026-07-14-weekly-meeting/47579 "2026-07-17T17:38:47Z")

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Title: 2026.07.14 Weekly Meeting Next Tuesday, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET. Anyone is welcome to join at this link: Google Meet meeting Agenda: Please post to this thr…

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## [Island tool inside a segment removes the whole segment](https://discourse.slicer.org/t/island-tool-inside-a-segment-removes-the-whole-segment/47649)

<div class="topic-metadata">

**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 5\
**Last updated:** [July 17, 2026, 3:57pm UTC](https://discourse.slicer.org/t/island-tool-inside-a-segment-removes-the-whole-segment/47649 "2026-07-17T15:57:11Z")

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I want to remove these small specs left after a boolean. So I restricted the editable area to inside that specific segment, and then tried to use the island tools remove small islands with really small island size (like …

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## [Problem Downloading Slicer](https://discourse.slicer.org/t/problem-downloading-slicer/47655)

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**Author:** [@kikubamutwe](https://discourse.slicer.org/u/kikubamutwe)\
**Replies:** 1\
**Last updated:** [July 17, 2026, 3:33pm UTC](https://discourse.slicer.org/t/problem-downloading-slicer/47655 "2026-07-17T15:33:21Z")

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I cannot complete the Slicer download. I have tried using multiple connections in multiple countries (using various remote boxes) and each time the download fails partway through. Some of these connections have 1G capac…

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## [Segment Not working](https://discourse.slicer.org/t/segment-not-working/47659)

<div class="topic-metadata">

**Author:** [@Reza\_ashtiani](https://discourse.slicer.org/u/Reza_ashtiani)\
**Replies:** 0\
**Last updated:** [July 17, 2026, 3:25pm UTC](https://discourse.slicer.org/t/segment-not-working/47659 "2026-07-17T15:25:39Z")

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Dear friends I am new on program. When I want to segment my CBCT, it simply doesn’t work. I’m using CUDA. The first step — loading the DICOM file — works fine, but the dental segmentation process doesn’t proceed be…

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## [Brachial plexus and subclavian vessel segmentation](https://discourse.slicer.org/t/brachial-plexus-and-subclavian-vessel-segmentation/47657)

<div class="topic-metadata">

**Author:** [@Eserval](https://discourse.slicer.org/u/Eserval)\
**Replies:** 0\
**Last updated:** [July 17, 2026, 1:35pm UTC](https://discourse.slicer.org/t/brachial-plexus-and-subclavian-vessel-segmentation/47657 "2026-07-17T13:35:24Z")

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Hello everyone, I’m working on a surgical planning project for thoracic outlet syndrome. Is anyone segmenting peripheral nerve structures from MRI in 3D Slicer? I need to segment the brachial plexus and the subclavian …

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## [Slicer AURs throw CMAKE errors](https://discourse.slicer.org/t/slicer-aurs-throw-cmake-errors/47654)

<div class="topic-metadata">

**Author:** [@kikubamutwe](https://discourse.slicer.org/u/kikubamutwe)\
**Replies:** 0\
**Last updated:** [July 17, 2026, 1:14pm UTC](https://discourse.slicer.org/t/slicer-aurs-throw-cmake-errors/47654 "2026-07-17T13:14:02Z")

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The AURs listed for Arch in the docs do not work on CachyOS: Getting Started — 3D Slicer documentation They throw CMAKE errors as follows: patching file CMakeLists.txt CMake Error at CMakeLists.txt:25 (CMAKE\_MINIMUM\_RE…

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## [Disabling nightly builds on 2026-07-15 to build Slicer 5.12.2](https://discourse.slicer.org/t/disabling-nightly-builds-on-2026-07-15-to-build-slicer-5-12-2/47617)

<div class="topic-metadata">

**Author:** [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Replies:** 1\
**Last updated:** [July 16, 2026, 12:13pm UTC](https://discourse.slicer.org/t/disabling-nightly-builds-on-2026-07-15-to-build-slicer-5-12-2/47617 "2026-07-16T12:13:04Z")

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Tomorrow, July 15, we are planning to disable the Slicer preview builds to build Slicer 5.12.2. The purpose of Slicer 5.12.2 is primarily to do a clean rebuild of the macOS stable because we suspect that 5.12.1 was buil…

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## [What is the difference between GetColor() and GetSelectedColor() in display node?](https://discourse.slicer.org/t/what-is-the-difference-between-getcolor-and-getselectedcolor-in-display-node/47613)

<div class="topic-metadata">

**Author:** [@Victor\_Wayne](https://discourse.slicer.org/u/Victor_Wayne)\
**Replies:** 2\
**Last updated:** [July 16, 2026, 6:22am UTC](https://discourse.slicer.org/t/what-is-the-difference-between-getcolor-and-getselectedcolor-in-display-node/47613 "2026-07-16T06:22:00Z")

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Hi, The question is, as the title says, what is the difference between the color property and the selected color propertly of a display node? Thanks in advance.

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## [Is it possible to scroll by dragging the mouse in the current view?](https://discourse.slicer.org/t/is-it-possible-to-scroll-by-dragging-the-mouse-in-the-current-view/35964)

<div class="topic-metadata">

**Author:** [@ndelgado](https://discourse.slicer.org/u/ndelgado)\
**Replies:** 8\
**Last updated:** [July 15, 2026, 11:02pm UTC](https://discourse.slicer.org/t/is-it-possible-to-scroll-by-dragging-the-mouse-in-the-current-view/35964 "2026-07-15T23:02:57Z")

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Hello, I was wondering if there is a way to use a keyboard shortcut and drag the mouse to scroll through the slices in the current selected view. I know that it is possible to use the shift key and then drag mouse to sc…

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## [Accidental direct commit to main](https://discourse.slicer.org/t/accidental-direct-commit-to-main/47641)

<div class="topic-metadata">

**Author:** [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Replies:** 0\
**Last updated:** [July 15, 2026, 7:12pm UTC](https://discourse.slicer.org/t/accidental-direct-commit-to-main/47641 "2026-07-15T19:12:49Z")

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While editing issue templates I did not realize the edit would bypass branch protections and create a commit directly on main. I quickly removed the commit (bypassing branch protections again). Sorry for that, to anyone …

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## [TIFF volume orientation does not match source STL orientation](https://discourse.slicer.org/t/tiff-volume-orientation-does-not-match-source-stl-orientation/47582)

<div class="topic-metadata">

**Author:** [@tbugajski](https://discourse.slicer.org/u/tbugajski)\
**Replies:** 9\
**Last updated:** [July 15, 2026, 4:08pm UTC](https://discourse.slicer.org/t/tiff-volume-orientation-does-not-match-source-stl-orientation/47582 "2026-07-15T16:08:41Z")

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Hi SAM team, We have been successfully using SAM to create partial volumes from CT segmentations, track these volumes, and apply the resulting transformations to AUT models in MATLAB to visualize motion. We are now try…

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## [A quick/easy method to segment individual muscles ](https://discourse.slicer.org/t/a-quick-easy-method-to-segment-individual-muscles/7963)

<div class="topic-metadata">

**Author:** [@tsjamo](https://discourse.slicer.org/u/tsjamo)\
**Replies:** 3\
**Last updated:** [July 14, 2026, 7:53pm UTC](https://discourse.slicer.org/t/a-quick-easy-method-to-segment-individual-muscles/7963 "2026-07-14T19:53:25Z")

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Good afternoon. I have MR images from a research study of the human thigh before and after an intervention which induces muscle atrophy. I wish to quantify this atrophy by looking at changes in muscle volume. I have us…

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## [Stereo Off-Axis Projection and Mouse Interactions](https://discourse.slicer.org/t/stereo-off-axis-projection-and-mouse-interactions/47552)

<div class="topic-metadata">

**Author:** [@LucasP](https://discourse.slicer.org/u/LucasP)\
**Replies:** 4\
**Last updated:** [July 14, 2026, 6:22pm UTC](https://discourse.slicer.org/t/stereo-off-axis-projection-and-mouse-interactions/47552 "2026-07-14T18:22:48Z")

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:robot: This post was written with AI assistance. But I’m still human Hi, I’m new to 3D Slicer and VTK. I am trying to build a “virtual window” effect using a custom stereo display that gives me real-time viewDistanc…

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## [Abdominal Muscle Segmentation any better ways to approach this?](https://discourse.slicer.org/t/abdominal-muscle-segmentation-any-better-ways-to-approach-this/46206)

<div class="topic-metadata">

**Author:** [@CS1](https://discourse.slicer.org/u/CS1)\
**Replies:** 3\
**Last updated:** [July 14, 2026, 4:00pm UTC](https://discourse.slicer.org/t/abdominal-muscle-segmentation-any-better-ways-to-approach-this/46206 "2026-07-14T16:00:34Z")

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Hello there, I’ve been using total segmentator, 3D slicer for the past few months trying to get the volumetric data for body composition of the lumbar region. I have to say that it is a great resource and gives you a de…

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