# Latest

**URL:** https://discourse.slicer.org/latest.md?page=33

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

**Page:** 34

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## [nnInteractive with GPU 5090](https://discourse.slicer.org/t/nninteractive-with-gpu-5090/45002)

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**Author:** [@rakshrma](https://discourse.slicer.org/u/rakshrma)\
**Replies:** 1\
**Last updated:** [November 8, 2025, 7:06am UTC](https://discourse.slicer.org/t/nninteractive-with-gpu-5090/45002 "2025-11-08T07:06:21Z")

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Hi - I am interested to use nnInteractive extension on Nvidia 5090 series laptop. Unfortunately, whenever I try to use Totalsegmentator or nnInteractive, it re-installs an older version of pytorch which is incompatible …

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## [Pedicle screw planner and simulation module](https://discourse.slicer.org/t/pedicle-screw-planner-and-simulation-module/45001)

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**Author:** [@optimistsam](https://discourse.slicer.org/u/optimistsam)\
**Replies:** 0\
**Last updated:** [November 8, 2025, 6:49am UTC](https://discourse.slicer.org/t/pedicle-screw-planner-and-simulation-module/45001 "2025-11-08T06:49:18Z")

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In the pedicle screw planner module, I am unable to load a screw or visualize a screwafter placing markers. Directly getting a tab to adjust screw but no screw is visible. In the pedicle screw simulator module, is it po…

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## [Error while trying to import NRRD and DICOM into 3D Slicer](https://discourse.slicer.org/t/error-while-trying-to-import-nrrd-and-dicom-into-3d-slicer/45000)

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**Author:** [@tarciobr97](https://discourse.slicer.org/u/tarciobr97)\
**Replies:** 0\
**Last updated:** [November 8, 2025, 6:47am UTC](https://discourse.slicer.org/t/error-while-trying-to-import-nrrd-and-dicom-into-3d-slicer/45000 "2025-11-08T06:47:46Z")

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Hi i’m tarcio, and im trying to measure the supraspinatus from multiples MRI that i have from patients to elaborate a study around supraspinatus and radiomics. For that, im using 3d slicer, but in order to do not waste …

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## [Totalsegmentation hardware requirements](https://discourse.slicer.org/t/totalsegmentation-hardware-requirements/44870)

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**Author:** [@alex\_He](https://discourse.slicer.org/u/alex_He)\
**Replies:** 9\
**Last updated:** [November 8, 2025, 6:18am UTC](https://discourse.slicer.org/t/totalsegmentation-hardware-requirements/44870 "2025-11-08T06:18:30Z")

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Hi I am running 3d slicer 5.8 windows 11 with nvidia gpu, when I run totalsegmentation, it takes 45 mins to process. May i ask what is the minimum gpu requirement to run it in just a few minutes?

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## [Maintenance of macOS dashboard in progress - upgrading from Ventura to Sequoia](https://discourse.slicer.org/t/maintenance-of-macos-dashboard-in-progress-upgrading-from-ventura-to-sequoia/44950)

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**Author:** [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Replies:** 3\
**Last updated:** [November 8, 2025, 5:28am UTC](https://discourse.slicer.org/t/maintenance-of-macos-dashboard-in-progress-upgrading-from-ventura-to-sequoia/44950 "2025-11-08T05:28:20Z")

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The macOS system named “computron” has been upgraded from 13.7.5 (Ventura) to 15.7.1 (Sequoia). While we finish updating the build tools and Qt dependencies , macOS builds of Slicer and extensions are temporarily unavai…

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## [Moose Extension was ERROR](https://discourse.slicer.org/t/moose-extension-was-error/44998)

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**Author:** [@akmal871026](https://discourse.slicer.org/u/akmal871026)\
**Replies:** 1\
**Last updated:** [November 8, 2025, 5:00am UTC](https://discourse.slicer.org/t/moose-extension-was-error/44998 "2025-11-08T05:00:21Z")

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Dear All, I am faced problem since install dependencies for Moose Extension. Traceback (most recent call last): File “D:\\Slicer 5.8.1\\bin\\Python\\slicer\\util.py”, line 3303, in tryWithErrorDisplay yield File “D:/Slic…

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## [Issues loading module to slicer](https://discourse.slicer.org/t/issues-loading-module-to-slicer/44929)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 4\
**Last updated:** [November 7, 2025, 11:54am UTC](https://discourse.slicer.org/t/issues-loading-module-to-slicer/44929 "2025-11-07T11:54:27Z")

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im developing module for in python using ai vibe coding . i had incredibly hard time to create / maintain loadable module . first one was loadable then stopped after some iteration not related to the matter itself . i f…

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## [Annotation -\> Markups: disable line shading?](https://discourse.slicer.org/t/annotation-markups-disable-line-shading/44978)

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**Author:** [@codeling](https://discourse.slicer.org/u/codeling)\
**Replies:** 0\
**Last updated:** [November 6, 2025, 2:17pm UTC](https://discourse.slicer.org/t/annotation-markups-disable-line-shading/44978 "2025-11-06T14:17:52Z")

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Lines in the annotation module were rendered flat, i.e. without shading. The lines from the Markups module are now shaded by default. Is there a possibility to configure flat shading for these? I have searched, but curr…

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## [Painting on oblique images](https://discourse.slicer.org/t/painting-on-oblique-images/44968)

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**Author:** [@Deep\_Learning](https://discourse.slicer.org/u/Deep_Learning)\
**Replies:** 6\
**Last updated:** [November 6, 2025, 2:10pm UTC](https://discourse.slicer.org/t/painting-on-oblique-images/44968 "2025-11-06T14:10:43Z")

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v5.8.1 sample data cta abdomen. Create double oblique… I have never understood this. When I click with the paint tool, I do not get a circle. I might understand this. But I definitely do not understand why when …

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## [Change the color scheme of segmenation file](https://discourse.slicer.org/t/change-the-color-scheme-of-segmenation-file/44977)

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**Author:** [@Ruolin\_Li](https://discourse.slicer.org/u/Ruolin_Li)\
**Replies:** 1\
**Last updated:** [November 6, 2025, 2:03pm UTC](https://discourse.slicer.org/t/change-the-color-scheme-of-segmenation-file/44977 "2025-11-06T14:03:04Z")

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Hello! I’m trying to change the color scheme for the segmentation file I loaded in the 3D Slicer. My segmentation has 126 labels, and they’re currently displayed under the default color GenericAnatomyColors, which is no…

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## [Can you set scissor to a specific size?](https://discourse.slicer.org/t/can-you-set-scissor-to-a-specific-size/44976)

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**Author:** [@CS1](https://discourse.slicer.org/u/CS1)\
**Replies:** 0\
**Last updated:** [November 6, 2025, 12:33pm UTC](https://discourse.slicer.org/t/can-you-set-scissor-to-a-specific-size/44976 "2025-11-06T12:33:58Z")

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Hi guys! I’m hoping to acquire a volume of interest of the trabecular bone of the vertebrae body. So basically my plan is to segment the lumbar vertebrae first and then use scissor function (set the shape as rectangle an…

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## [How to calculate the internal cranial volume (space occupied by the brain) in 3D Slicer](https://discourse.slicer.org/t/how-to-calculate-the-internal-cranial-volume-space-occupied-by-the-brain-in-3d-slicer/44955)

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**Author:** [@Luz\_Velasco](https://discourse.slicer.org/u/Luz_Velasco)\
**Replies:** 2\
**Last updated:** [November 5, 2025, 11:03am UTC](https://discourse.slicer.org/t/how-to-calculate-the-internal-cranial-volume-space-occupied-by-the-brain-in-3d-slicer/44955 "2025-11-05T11:03:22Z")

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Hello everyone, I have a 3D CT scan of a skull (without the brain visible), and I would like to calculate the internal cranial volume — that is, the volume corresponding to the space where the brain would normally be lo…

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## [Adding a library to a custom loadable module](https://discourse.slicer.org/t/adding-a-library-to-a-custom-loadable-module/44945)

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**Author:** [@Suhaim](https://discourse.slicer.org/u/Suhaim)\
**Replies:** 1\
**Last updated:** [November 5, 2025, 8:48am UTC](https://discourse.slicer.org/t/adding-a-library-to-a-custom-loadable-module/44945 "2025-11-05T08:48:12Z")

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Hi, I wanted some support on adding a library in my custom loadable module. This is my cmake for adding a library called “SystemChecker” which is inside a directory called “SystemCheck”. The library is building correc…

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## [How to package Slicer built with a loadable module?](https://discourse.slicer.org/t/how-to-package-slicer-built-with-a-loadable-module/44964)

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**Author:** [@Suhaim](https://discourse.slicer.org/u/Suhaim)\
**Replies:** 1\
**Last updated:** [November 5, 2025, 5:35am UTC](https://discourse.slicer.org/t/how-to-package-slicer-built-with-a-loadable-module/44964 "2025-11-05T05:35:26Z")

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Hi everyone, I am creating this post as a reference for anyone who was wondering on how to package slicer built with a custom loadable module. I was not able to find any documentation on this, please correct me if I am …

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## [When will 3D Slicer support Qt 6?](https://discourse.slicer.org/t/when-will-3d-slicer-support-qt-6/44319)

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**Author:** [@Vincent](https://discourse.slicer.org/u/Vincent)\
**Replies:** 7\
**Last updated:** [November 5, 2025, 4:21am UTC](https://discourse.slicer.org/t/when-will-3d-slicer-support-qt-6/44319 "2025-11-05T04:21:03Z")

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First of all, thank 3D Slicer developers so much for working on supporting Qt 6. When will 3D Slicer support Qt 6? Will 3D Slicer support Qt 6 in 2025 ?

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## [Getting ffmpeg crash on Linux](https://discourse.slicer.org/t/getting-ffmpeg-crash-on-linux/44957)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 3\
**Last updated:** [November 4, 2025, 5:08pm UTC](https://discourse.slicer.org/t/getting-ffmpeg-crash-on-linux/44957 "2025-11-04T17:08:09Z")

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On ubuntu 22.04, ScreenCapture is crashing with the latest preview with this error. I presume this is an ABI issue? /usr/bin/ffmpeg -nostdin -y -r 60 -start\_number 0 -i /tmp/Slicer-NCcZBZ/Slicer-%04d.png -codec mpeg4 -q…

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## [Request for Technical Guidance on OAR Contouring and RTSTRUCT Export Using 3D Slicer](https://discourse.slicer.org/t/request-for-technical-guidance-on-oar-contouring-and-rtstruct-export-using-3d-slicer/44928)

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**Author:** [@RAJVEER\_RUPEN](https://discourse.slicer.org/u/RAJVEER_RUPEN)\
**Replies:** 1\
**Last updated:** [November 4, 2025, 2:05pm UTC](https://discourse.slicer.org/t/request-for-technical-guidance-on-oar-contouring-and-rtstruct-export-using-3d-slicer/44928 "2025-11-04T14:05:33Z")

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Respected Team, I am Dr. \[Your Full Name\], BHMS, currently learning and developing skills in OAR (Organs at Risk) contouring using 3D Slicer. My goal is to understand the complete technical workflow for accurate deline…

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## [2025.11.04 Weekly Meeting](https://discourse.slicer.org/t/2025-11-04-weekly-meeting/44954)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [November 4, 2025, 1:18pm UTC](https://discourse.slicer.org/t/2025-11-04-weekly-meeting/44954 "2025-11-04T13:18:15Z")

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Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET. a Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread t…

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## [How to run IGT Volume Reconstruction in terminal](https://discourse.slicer.org/t/how-to-run-igt-volume-reconstruction-in-terminal/44951)

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**Author:** [@elisedl1](https://discourse.slicer.org/u/elisedl1)\
**Replies:** 0\
**Last updated:** [November 3, 2025, 5:33pm UTC](https://discourse.slicer.org/t/how-to-run-igt-volume-reconstruction-in-terminal/44951 "2025-11-03T17:33:03Z")

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If I’ve cloned the repo for SlicerIGT locally, can I perform “recorded sequence volume reconstruction” in terminal? (I need to run it via an ssh remote connection as opposed to using the GUI in actual 3D Slicer). Thanks …

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## [Fcsv Landmark Verileri ile Grup Bazlı PCA](https://discourse.slicer.org/t/fcsv-landmark-verileri-ile-grup-bazli-pca/44949)

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**Author:** [@Esra\_Karacan](https://discourse.slicer.org/u/Esra_Karacan)\
**Replies:** 1\
**Last updated:** [November 3, 2025, 4:35pm UTC](https://discourse.slicer.org/t/fcsv-landmark-verileri-ile-grup-bazli-pca/44949 "2025-11-03T16:35:46Z")

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Hello, I am comparing my archaeological and modern mandible data. I saved my landmark sets in fcsv format. I would like to include male and female individuals as separate groups for PCA analysis. Could you guide me on h…

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## [qSlicerWebWidget crash on Slicer built on Win 10 Pro x64](https://discourse.slicer.org/t/qslicerwebwidget-crash-on-slicer-built-on-win-10-pro-x64/18852)

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**Author:** [@mau\_igna\_06](https://discourse.slicer.org/u/mau_igna_06)\
**Replies:** 5\
**Last updated:** [November 3, 2025, 6:17am UTC](https://discourse.slicer.org/t/qslicerwebwidget-crash-on-slicer-built-on-win-10-pro-x64/18852 "2025-11-03T06:17:35Z")

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Hi. I compiled Slicer from source following the instructions here on debug mode. When I run these lines Slicer crashes: ww = slicer.qSlicerWebWidget() ww.url = 'http://www.google.com' Does this mean that the compilati…

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## [Body composition - abdominal muscle segmentation with total segmentator](https://discourse.slicer.org/t/body-composition-abdominal-muscle-segmentation-with-total-segmentator/44669)

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**Author:** [@CS1](https://discourse.slicer.org/u/CS1)\
**Replies:** 3\
**Last updated:** [November 2, 2025, 1:21pm UTC](https://discourse.slicer.org/t/body-composition-abdominal-muscle-segmentation-with-total-segmentator/44669 "2025-11-02T13:21:55Z")

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Heya, I’m currently using total segmentator subtask - tissue 4 type for abdominal muscle segmentation, however I noticed it doesn’t pick up transverse abdominis at all and is not the best at segmentating iliacus. I’ve ju…

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## [Recreating segmentation from 3D models](https://discourse.slicer.org/t/recreating-segmentation-from-3d-models/44922)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 7\
**Last updated:** [November 1, 2025, 8:20pm UTC](https://discourse.slicer.org/t/recreating-segmentation-from-3d-models/44922 "2025-11-01T20:20:00Z")

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Let’s say I have the original volume, and the segmentation object saved as a 3D model (like ply) on the disk, but not the actual seg.nrrd file. What is the suggested operation to reconstitute the segmentation map close…

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## [How to create ECV mapps with 3D slicer ](https://discourse.slicer.org/t/how-to-create-ecv-mapps-with-3d-slicer/44936)

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**Author:** [@Nara](https://discourse.slicer.org/u/Nara)\
**Replies:** 0\
**Last updated:** [November 1, 2025, 7:45pm UTC](https://discourse.slicer.org/t/how-to-create-ecv-mapps-with-3d-slicer/44936 "2025-11-01T19:45:57Z")

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Hello, I need to use 3D slicer to create ECV map, but when I try to import DICOM files (on a CD), and use the T1 ECV Mapping extension, I can’t find and upload the imput volumes!! Do I need the internet to do so? Or is …

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## [Help with OAR Contouring Workflow and RTSTRUCT Export for Radiotherapy Using 3D Slicer](https://discourse.slicer.org/t/help-with-oar-contouring-workflow-and-rtstruct-export-for-radiotherapy-using-3d-slicer/44935)

<div class="topic-metadata">

**Author:** [@RAJVEER\_RUPEN](https://discourse.slicer.org/u/RAJVEER_RUPEN)\
**Replies:** 0\
**Last updated:** [November 1, 2025, 7:45pm UTC](https://discourse.slicer.org/t/help-with-oar-contouring-workflow-and-rtstruct-export-for-radiotherapy-using-3d-slicer/44935 "2025-11-01T19:45:40Z")

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Hello everyone, I am Dr.RUPEN RAJVIR , BHMS, currently in the process of learning OAR (Organs at Risk) contouring using 3D Slicer. My present work is purely for training and research purposes (non-clinical), and in the…

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## [Help transferring semi-landmarks to multiple specimens using ALPACA](https://discourse.slicer.org/t/help-transferring-semi-landmarks-to-multiple-specimens-using-alpaca/44919)

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**Author:** [@r\_dientes](https://discourse.slicer.org/u/r_dientes)\
**Replies:** 6\
**Last updated:** [October 31, 2025, 7:53pm UTC](https://discourse.slicer.org/t/help-transferring-semi-landmarks-to-multiple-specimens-using-alpaca/44919 "2025-10-31T19:53:46Z")

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Hi everyone, I’m working with a collection of archaeological human teeth (permanent canines) and I’m trying to transfer a set of semi-landmarks from a reference model to several specimens. Here’s my current workflow: …

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## [Hounsfields units in Version 5.8.1 for windows](https://discourse.slicer.org/t/hounsfields-units-in-version-5-8-1-for-windows/44925)

<div class="topic-metadata">

**Author:** [@Kerstin\_Amort](https://discourse.slicer.org/u/Kerstin_Amort)\
**Replies:** 1\
**Last updated:** [October 31, 2025, 12:16pm UTC](https://discourse.slicer.org/t/hounsfields-units-in-version-5-8-1-for-windows/44925 "2025-10-31T12:16:57Z")

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Hello All, after updating the version we are not able to see the HU measurements in the “statistics” part. Is there a way to measure mean, minimum and maximum HU values with presentation in the statistic part? Thank you

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## [Breaking Linux downloads](https://discourse.slicer.org/t/breaking-linux-downloads/44342)

<div class="topic-metadata">

**Author:** [@abitrolly](https://discourse.slicer.org/u/abitrolly)\
**Replies:** 5\
**Last updated:** [October 30, 2025, 7:34pm UTC](https://discourse.slicer.org/t/breaking-linux-downloads/44342 "2025-10-30T19:34:56Z")

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Unable to download 3D Slicer for Linux. $ wget -c https://slicer-packages.kitware.com/api/v1/item/67c51fc129825655577cfee9/download Saving 'download' Just got 32571392 of 402316524 bytes (https://slicer-packages.kitware…

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## [Get data of patient from images](https://discourse.slicer.org/t/get-data-of-patient-from-images/14693)

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**Author:** [@Valentina\_Mejia\_Gall](https://discourse.slicer.org/u/Valentina_Mejia_Gall)\
**Replies:** 2\
**Last updated:** [October 30, 2025, 4:43pm UTC](https://discourse.slicer.org/t/get-data-of-patient-from-images/14693 "2025-10-30T16:43:34Z")

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Hello, I download a CTSCAN of the lower limb, this images includes femur, tibia, etc. How could i know the mass, height or data of the patient from these files in 3Dslicer?

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## [US segmentation, imaging browsing](https://discourse.slicer.org/t/us-segmentation-imaging-browsing/44916)

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**Author:** [@sunmichaelj](https://discourse.slicer.org/u/sunmichaelj)\
**Replies:** 1\
**Last updated:** [October 30, 2025, 3:14am UTC](https://discourse.slicer.org/t/us-segmentation-imaging-browsing/44916 "2025-10-30T03:14:08Z")

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Hello, I am trying to segment some ultrasound images. I imported the whole DICOM into Slicer but the images are out of order. Is there a way to sort the images so they are in order and if so, is there a way to scroll t…

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