# Latest

**URL:** https://discourse.slicer.org/latest.md?page=38

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

**Page:** 39

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## [Problem with bone texture extension 2025](https://discourse.slicer.org/t/problem-with-bone-texture-extension-2025/44601)

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**Author:** [@Goose123](https://discourse.slicer.org/u/Goose123)\
**Replies:** 0\
**Last updated:** [September 26, 2025, 7:10pm UTC](https://discourse.slicer.org/t/problem-with-bone-texture-extension-2025/44601 "2025-09-26T19:10:26Z")

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Hello! I have two problems with the “bone texture” extension: 1.) BM features result can’t be exported into a table (error: Please specify an output csv file) and BM feature maps can’t be exported as dwi files (exports…

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## [How to enable/disable the option of "interpolated cropped" inside "cropvolume" via python coding?](https://discourse.slicer.org/t/how-to-enable-disable-the-option-of-interpolated-cropped-inside-cropvolume-via-python-coding/32128)

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**Author:** [@aiden.zhu](https://discourse.slicer.org/u/aiden.zhu)\
**Replies:** 3\
**Last updated:** [September 26, 2025, 2:53pm UTC](https://discourse.slicer.org/t/how-to-enable-disable-the-option-of-interpolated-cropped-inside-cropvolume-via-python-coding/32128 "2025-09-26T14:53:59Z")

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Operating system: windows 10 Slicer version: 4.11 Expected behavior: would like to control enable/disable the option of “interpolated cropped” Actual behavior: I am doing cropping volumes via python coding, use the …

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## [SegmentMesher in Slicer 5.2 and 5.3 fail: Error: 'vtkmodules.vtkFiltersCore.vtkThreshold' object has no attribute 'ThresholdByUpper'](https://discourse.slicer.org/t/segmentmesher-in-slicer-5-2-and-5-3-fail-error-vtkmodules-vtkfilterscore-vtkthreshold-object-has-no-attribute-thresholdbyupper/27894)

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**Author:** [@Mat](https://discourse.slicer.org/u/Mat)\
**Replies:** 4\
**Last updated:** [September 26, 2025, 2:15pm UTC](https://discourse.slicer.org/t/segmentmesher-in-slicer-5-2-and-5-3-fail-error-vtkmodules-vtkfilterscore-vtkthreshold-object-has-no-attribute-thresholdbyupper/27894 "2025-09-26T14:15:23Z")

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Operating system: Windows 11 Slicer version: 5.3 Expected behavior: complete successfully Actual behavior: fails I’m trying to create a volume mesh using segmentMesher and it keeps failing: Generating volumetric mes…

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## [Extract centerlines irregularities](https://discourse.slicer.org/t/extract-centerlines-irregularities/44584)

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**Author:** [@bserrano](https://discourse.slicer.org/u/bserrano)\
**Replies:** 2\
**Last updated:** [September 25, 2025, 6:48pm UTC](https://discourse.slicer.org/t/extract-centerlines-irregularities/44584 "2025-09-25T18:48:33Z")

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Hi everyone, I’m using the Extract Centerline module and I’m experiencing some irregularities in the extracted curve (see attached image). I’m not sure why this is happening. The problem becomes more evident when I use C…

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## [Model to segment irregularities](https://discourse.slicer.org/t/model-to-segment-irregularities/44560)

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**Author:** [@bserrano](https://discourse.slicer.org/u/bserrano)\
**Replies:** 4\
**Last updated:** [September 25, 2025, 1:01pm UTC](https://discourse.slicer.org/t/model-to-segment-irregularities/44560 "2025-09-25T13:01:28Z")

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Hi everyone, We’re trying to use the Segment Editor (Subtract) with shapeNodes (cylinders). Our current workflow is: Convert the shapeNode (model) into a segment. Apply the segment editor operations. The issue appea…

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## [Pytomography Extension output](https://discourse.slicer.org/t/pytomography-extension-output/44583)

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**Author:** [@akmal871026](https://discourse.slicer.org/u/akmal871026)\
**Replies:** 0\
**Last updated:** [September 25, 2025, 12:56pm UTC](https://discourse.slicer.org/t/pytomography-extension-output/44583 "2025-09-25T12:56:54Z")

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Dear Luke, Sorry interrupted. Recently, I did simulation NEMA phantom of I131 used SIMIND. But what I reached is, there is problem with my projection data. As comparing with example given from you (first picture), I …

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## [SegmentGeometry compactness bug?](https://discourse.slicer.org/t/segmentgeometry-compactness-bug/44577)

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**Author:** [@cliftong](https://discourse.slicer.org/u/cliftong)\
**Replies:** 2\
**Last updated:** [September 25, 2025, 5:45am UTC](https://discourse.slicer.org/t/segmentgeometry-compactness-bug/44577 "2025-09-25T05:45:52Z")

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Hi @jmhuie ! I have a weird behavior happening with SegmentGeometry that I’m hoping you can help me understand. We are calculating the cross-sectional area and properties of a segment with slices aligned with the green …

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## [Applying Transform Changes number of stacks on the file](https://discourse.slicer.org/t/applying-transform-changes-number-of-stacks-on-the-file/44478)

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**Author:** [@ylcnkzy](https://discourse.slicer.org/u/ylcnkzy)\
**Replies:** 2\
**Last updated:** [September 24, 2025, 12:37pm UTC](https://discourse.slicer.org/t/applying-transform-changes-number-of-stacks-on-the-file/44478 "2025-09-24T12:37:08Z")

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Dear Colleagues, I am registering the Fixed.tiff image to the Moving.tiff image using the Elastix module within 3D Slicer. Both images are 512 × 512 × 381. The registration works well, and after I apply the transform, e…

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## [Need help with analyzing segmentations from 2 different MRIs :( ](https://discourse.slicer.org/t/need-help-with-analyzing-segmentations-from-2-different-mris/44567)

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**Author:** [@Mc\_Konni](https://discourse.slicer.org/u/Mc_Konni)\
**Replies:** 1\
**Last updated:** [September 24, 2025, 11:05am UTC](https://discourse.slicer.org/t/need-help-with-analyzing-segmentations-from-2-different-mris/44567 "2025-09-24T11:05:42Z")

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Hi Guys, i am completely new to 3D Slicer, i have tried to solve the following issue for a couple of days and im honestly about to give up. Heres my issue: Im conducting research with ULF MR Imaging and have segmentate…

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## [A thank you from a novice user and motivated brain cancer patient](https://discourse.slicer.org/t/a-thank-you-from-a-novice-user-and-motivated-brain-cancer-patient/44559)

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**Author:** [@OligoStu](https://discourse.slicer.org/u/OligoStu)\
**Replies:** 1\
**Last updated:** [September 23, 2025, 12:40pm UTC](https://discourse.slicer.org/t/a-thank-you-from-a-novice-user-and-motivated-brain-cancer-patient/44559 "2025-09-23T12:40:40Z")

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I’m writing a note of thanks to the developers and community after having found 3D slicer earlier this year and learning how to use it to get a fuller understanding from my routine MRIs to track progress of my brain tumo…

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## [Loading DeCA module](https://discourse.slicer.org/t/loading-deca-module/43237)

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**Author:** [@philippepellerin](https://discourse.slicer.org/u/philippepellerin)\
**Replies:** 36\
**Last updated:** [September 23, 2025, 9:21am UTC](https://discourse.slicer.org/t/loading-deca-module/43237 "2025-09-23T09:21:54Z")

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Hi, I think that this one is for Muratmaga. I am interested in the DeCA module, since I understood that it was able to create a template out of a series of segmented skulls, a function which would be very usefull for my…

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## [Getting errors while building Slicer 5.6.2 using  Visual Studio 2022](https://discourse.slicer.org/t/getting-errors-while-building-slicer-5-6-2-using-visual-studio-2022/44548)

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**Author:** [@kiran](https://discourse.slicer.org/u/kiran)\
**Replies:** 0\
**Last updated:** [September 22, 2025, 8:52pm UTC](https://discourse.slicer.org/t/getting-errors-while-building-slicer-5-6-2-using-visual-studio-2022/44548 "2025-09-22T20:52:37Z")

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Hi all, I’m trying to build Slicer 5.6.2 from source on Windows 10 using Visual Studio 2022 (CMake 3.29.2, Ninja/VS generator). The CMake configure step completes successfully — all dependencies are found and I see Supe…

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## [OpenDose3D to analyse monte carlo simulations results](https://discourse.slicer.org/t/opendose3d-to-analyse-monte-carlo-simulations-results/44080)

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**Author:** [@imbeatriz](https://discourse.slicer.org/u/imbeatriz)\
**Replies:** 6\
**Last updated:** [September 22, 2025, 1:34pm UTC](https://discourse.slicer.org/t/opendose3d-to-analyse-monte-carlo-simulations-results/44080 "2025-09-22T13:34:52Z")

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Hi everyone, I am trying to use OpenDose3D to analyse the results of dose images from monte carlo simulations which are in the format .mhd. From what I understood by the documentation, OpenDose3D is only able to perfor…

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## [TotalSegmentator Licensed Tasks Not Appearing in 3D Slicer Interface](https://discourse.slicer.org/t/totalsegmentator-licensed-tasks-not-appearing-in-3d-slicer-interface/43523)

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**Author:** [@Guilherme\_Augusto](https://discourse.slicer.org/u/Guilherme_Augusto)\
**Replies:** 2\
**Last updated:** [September 22, 2025, 1:59am UTC](https://discourse.slicer.org/t/totalsegmentator-licensed-tasks-not-appearing-in-3d-slicer-interface/43523 "2025-09-22T01:59:54Z")

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TotalSegmentator Licensed Tasks Not Appearing in 3D Slicer Interface Problem Description I have TotalSegmentator v2.10.0 installed and working via Python API in 3D Slicer 5.7.0, but licensed tasks like thigh\_shoulder\_…

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## [New Extension: MassVision](https://discourse.slicer.org/t/new-extension-massvision/44540)

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**Author:** [@Amoon](https://discourse.slicer.org/u/Amoon)\
**Replies:** 0\
**Last updated:** [September 21, 2025, 2:28am UTC](https://discourse.slicer.org/t/new-extension-massvision/44540 "2025-09-21T02:28:12Z")

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:rocket: Happy to announce the official release of MassVision extension v 1.0, now available through the 3D Slicer Extension Manager (compatible with the latest stable release, v5.8.1). :light\_bulb: MassVision is an end…

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## [Read GE .vol files](https://discourse.slicer.org/t/read-ge-vol-files/44539)

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**Author:** [@Sharmeen\_Khan](https://discourse.slicer.org/u/Sharmeen_Khan)\
**Replies:** 2\
**Last updated:** [September 20, 2025, 10:43pm UTC](https://discourse.slicer.org/t/read-ge-vol-files/44539 "2025-09-20T22:43:37Z")

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I have ge .vol files which i need to read in python for which i tried third-party software which would be able to convert it into a suitable format like dicom, like 3d slicer, dicomatic etc. but 3d slicer with extension …

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## [How to edit segmentations in total segmentator](https://discourse.slicer.org/t/how-to-edit-segmentations-in-total-segmentator/35498)

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**Author:** [@jake14](https://discourse.slicer.org/u/jake14)\
**Replies:** 7\
**Last updated:** [September 20, 2025, 10:27pm UTC](https://discourse.slicer.org/t/how-to-edit-segmentations-in-total-segmentator/35498 "2025-09-20T22:27:09Z")

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Used total segmentor for one case and there was an incorrect segmentation done where it has a gap in a structure I am intersted in. Is there an easy was to correct and edit the segmentation that is not accurate? every ot…

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## [Implementation of Pivot and Spin Calibration](https://discourse.slicer.org/t/implementation-of-pivot-and-spin-calibration/44533)

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**Author:** [@echisato](https://discourse.slicer.org/u/echisato)\
**Replies:** 1\
**Last updated:** [September 19, 2025, 9:44pm UTC](https://discourse.slicer.org/t/implementation-of-pivot-and-spin-calibration/44533 "2025-09-19T21:44:31Z")

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Hello, I am trying to implement pivot and spin calibration for a stylus, exactly how it is done in IGT \> Pivot Calibration (in order to prevent a user from having to navigate away from a custom module and back again, as…

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## [Extract center line from CT empty snail shell](https://discourse.slicer.org/t/extract-center-line-from-ct-empty-snail-shell/44456)

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**Author:** [@kuoi](https://discourse.slicer.org/u/kuoi)\
**Replies:** 32\
**Last updated:** [September 19, 2025, 4:53pm UTC](https://discourse.slicer.org/t/extract-center-line-from-ct-empty-snail-shell/44456 "2025-09-19T16:53:25Z")

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Hello, I know there is a post about extracting a centerline from a solid 3D model. However, my case is more complicated: it is an empty shell with an internal cavity. What I actually want to do is extract a centerline fr…

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## [New lightbox (contact image) mode in screen capture module](https://discourse.slicer.org/t/new-lightbox-contact-image-mode-in-screen-capture-module/10840)

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**Author:** [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Replies:** 7\
**Last updated:** [September 19, 2025, 4:28pm UTC](https://discourse.slicer.org/t/new-lightbox-contact-image-mode-in-screen-capture-module/10840 "2025-09-19T16:28:54Z")

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A new “lightbox image” output type has been added in latest Slicer Preview Release. In this mode captured images are exported as a large grid of images: Images can be exported from any views, with any animation mode,…

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## [​Where is “Relax Polygons” in the latest Slicer version? Any alternatives?](https://discourse.slicer.org/t/where-is-relax-polygons-in-the-latest-slicer-version-any-alternatives/44525)

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**Author:** [@DDD](https://discourse.slicer.org/u/DDD)\
**Replies:** 5\
**Last updated:** [September 19, 2025, 3:45pm UTC](https://discourse.slicer.org/t/where-is-relax-polygons-in-the-latest-slicer-version-any-alternatives/44525 "2025-09-19T15:45:56Z")

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​Hi everyone, I’m using the latest version of 3D Slicer (version 5.6.2), and I can’t seem to find the “Relax Polygons” option in the “Surface Toolbox” module anymore. In previous versions, I used “Relax Polygons” regul…

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## [Interest to create Flatpak for 3D Slicer, have issue with GUISupportQtOpenGL not found](https://discourse.slicer.org/t/interest-to-create-flatpak-for-3d-slicer-have-issue-with-guisupportqtopengl-not-found/16532)

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**Author:** [@Andythe\_great](https://discourse.slicer.org/u/Andythe_great)\
**Replies:** 40\
**Last updated:** [September 19, 2025, 9:27am UTC](https://discourse.slicer.org/t/interest-to-create-flatpak-for-3d-slicer-have-issue-with-guisupportqtopengl-not-found/16532 "2025-09-19T09:27:38Z")

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Hello, I want to create Flatpak for 3D Slicer. Flatpak is a packaging and distributing desktop software on Linux. https://www.flatpak.org/ I would like it to be submit to Flathub, an app store for Flatpak apps. Many …

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## [Trouble with opening 3D Slicer](https://discourse.slicer.org/t/trouble-with-opening-3d-slicer/44528)

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**Author:** [@binhyc11](https://discourse.slicer.org/u/binhyc11)\
**Replies:** 1\
**Last updated:** [September 19, 2025, 5:54am UTC](https://discourse.slicer.org/t/trouble-with-opening-3d-slicer/44528 "2025-09-19T05:54:57Z")

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I got myself in trouble with opening the application on Windows 11 v24H2. Context: Our lab was moving so I had to unplug my desktop for a month. Couple of days before when I clicked on the 3D Slicer icon, I saw the app …

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## [PyIGTL in Docker: Trouble with ](https://discourse.slicer.org/t/pyigtl-in-docker-trouble-with/44447)

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**Author:** [@Oskey999](https://discourse.slicer.org/u/Oskey999)\
**Replies:** 7\
**Last updated:** [September 19, 2025, 2:28am UTC](https://discourse.slicer.org/t/pyigtl-in-docker-trouble-with/44447 "2025-09-19T02:28:39Z")

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Hello, would this be the right place to post this? I am trying to run a python script that communicates with a 3d slicer extension using the pyigtl library. However, I am struggling to get the script to communicate wit…

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## [Codex ai coding implementation?](https://discourse.slicer.org/t/codex-ai-coding-implementation/44527)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 0\
**Last updated:** [September 19, 2025, 1:56am UTC](https://discourse.slicer.org/t/codex-ai-coding-implementation/44527 "2025-09-19T01:56:10Z")

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been working on creating a personalized web app these days . personally i have zero coding skill or desire to learn coding . what i did is open Visual studio code . it has integrated chat GPT codex module . which can int…

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## [Create a series of slices for viewing ](https://discourse.slicer.org/t/create-a-series-of-slices-for-viewing/44526)

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**Author:** [@sophiasol](https://discourse.slicer.org/u/sophiasol)\
**Replies:** 1\
**Last updated:** [September 18, 2025, 5:52pm UTC](https://discourse.slicer.org/t/create-a-series-of-slices-for-viewing/44526 "2025-09-18T17:52:42Z")

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Hello! Sorry if this has been asked before, but I really don’t seem to be able to find how to extract a series of slices from a selected ROI for viewing purposes. For example, I want to have 1mm step 0,5mm thickness slic…

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## [Convert stl to DICOM file](https://discourse.slicer.org/t/convert-stl-to-dicom-file/14643)

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**Author:** [@archery](https://discourse.slicer.org/u/archery)\
**Replies:** 17\
**Last updated:** [November 2, 2023, 3:01am UTC](https://discourse.slicer.org/t/convert-stl-to-dicom-file/14643 "2023-11-02T03:01:08Z")

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Hello, I was using 4.10.2 to convert stl to DICOM. However, after update to 4.11.2 I could not fund functionality. Can anyone help me with this? Thank you, Amy

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## [I want to creat a qMRMLNodeCombobox to choose one of fiducial node](https://discourse.slicer.org/t/i-want-to-creat-a-qmrmlnodecombobox-to-choose-one-of-fiducial-node/44496)

<div class="topic-metadata">

**Author:** [@zhutouzjq](https://discourse.slicer.org/u/zhutouzjq)\
**Replies:** 4\
**Last updated:** [September 18, 2025, 1:26am UTC](https://discourse.slicer.org/t/i-want-to-creat-a-qmrmlnodecombobox-to-choose-one-of-fiducial-node/44496 "2025-09-18T01:26:27Z")

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I know this question may be stupid, but it has been already struggling me for several days. as you see, there is a fiducial node in the CTA image. and I created a standard intial extension, insert a label called ‘l…

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## [How to create fixed 60°/90° wedge overlays for AHA17 segmentation on myocardium masks](https://discourse.slicer.org/t/how-to-create-fixed-60-90-wedge-overlays-for-aha17-segmentation-on-myocardium-masks/44511)

<div class="topic-metadata">

**Author:** [@emisseria](https://discourse.slicer.org/u/emisseria)\
**Replies:** 0\
**Last updated:** [September 17, 2025, 9:21pm UTC](https://discourse.slicer.org/t/how-to-create-fixed-60-90-wedge-overlays-for-aha17-segmentation-on-myocardium-masks/44511 "2025-09-17T21:21:03Z")

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Hi all I already have a myocardium segmentation (label map) from short-axis cardiac MRI. What I need on one chosen slice, place a center point and draw radial wedge lines at fixed angles (basal/mid: 6×60°, apical: 4×90…

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## [transformed and hardend ROI not loading transformed](https://discourse.slicer.org/t/transformed-and-hardend-roi-not-loading-transformed/44506)

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**Author:** [@Tamara](https://discourse.slicer.org/u/Tamara)\
**Replies:** 3\
**Last updated:** [September 17, 2025, 8:04pm UTC](https://discourse.slicer.org/t/transformed-and-hardend-roi-not-loading-transformed/44506 "2025-09-17T20:04:37Z")

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Hello, I want to transform my ROI and slightly rotate it while the full image is loaded in preview mode. Then I want to just load the transformed ROI in full resolution in order to then just work on this part of the imag…

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