# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=8

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

**Page:** 9

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## [New extension: DentalSegmentator for automatic dental CT & CBCT segmentation](https://discourse.slicer.org/t/new-extension-dentalsegmentator-for-automatic-dental-ct-cbct-segmentation/35591)

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**Author:** [@Gauthier](https://discourse.slicer.org/u/Gauthier)\
**Replies:** 13\
**Last updated:** [May 11, 2026, 12:05am UTC](https://discourse.slicer.org/t/new-extension-dentalsegmentator-for-automatic-dental-ct-cbct-segmentation/35591 "2026-05-11T00:05:40Z")

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Dear All, We are glad to announce the availability of DentalSegmentator, a new 3D Slicer extension for automatic segmentation of dental CT and CBCT scans. It is now available in the latest Slicer 5.7.0 preview release. …

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## [Get C-arm angles from 3D view orientation](https://discourse.slicer.org/t/get-c-arm-angles-from-3d-view-orientation/24435)

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**Author:** [@donghmu](https://discourse.slicer.org/u/donghmu)\
**Replies:** 23\
**Last updated:** [May 11, 2026, 12:04am UTC](https://discourse.slicer.org/t/get-c-arm-angles-from-3d-view-orientation/24435 "2026-05-11T00:04:09Z")

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Hi. I am an interventional cardiologist. Currently I am interested in pre-planning for my intervention. In detail, I want to determine the optimal angles for setting the X-ray views. Is there any extension, or Python co…

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## [Micro-CT Pseudobulb of Orchids: ](https://discourse.slicer.org/t/micro-ct-pseudobulb-of-orchids/46856)

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**Author:** [@Akhmad\_Fauzan](https://discourse.slicer.org/u/Akhmad_Fauzan)\
**Replies:** 14\
**Last updated:** [May 8, 2026, 4:14am UTC](https://discourse.slicer.org/t/micro-ct-pseudobulb-of-orchids/46856 "2026-05-08T04:14:14Z")

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I’m having trouble with my 3D volume rendering. I am currently trying to render a 3D volume of a pseudobulb. The object appears as a thin, flattened disk rather than a full 3D structure. Could this be an issue with the ‘…

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## [IDAVLM Converter Not Aligning Landmarks to Model](https://discourse.slicer.org/t/idavlm-converter-not-aligning-landmarks-to-model/46940)

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**Author:** [@ThomasVanParys](https://discourse.slicer.org/u/ThomasVanParys)\
**Replies:** 5\
**Last updated:** [May 7, 2026, 2:31pm UTC](https://discourse.slicer.org/t/idavlm-converter-not-aligning-landmarks-to-model/46940 "2026-05-07T14:31:45Z")

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Hello All, I have create a patch in Landmark IDAV, converting the .PTS in SlicerMorph IDAVLM converter. However, they do not align with the corresponding mesh used in Landmark as seen in the UI: I am clearly missing…

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## [How to get the clicked markup node in the 3D view?](https://discourse.slicer.org/t/how-to-get-the-clicked-markup-node-in-the-3d-view/46937)

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**Author:** [@NogginBops](https://discourse.slicer.org/u/NogginBops)\
**Replies:** 4\
**Last updated:** [May 7, 2026, 2:31pm UTC](https://discourse.slicer.org/t/how-to-get-the-clicked-markup-node-in-the-3d-view/46937 "2026-05-07T14:31:35Z")

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Hi, I’m interested in knowing what node is selected/hovered by the mouse when the left mouse button is pressed. I’ve tried using the scene interactor and trying to use the vtk picker, but I’m not really able to get it …

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## [Add Scalar Volumes Not Functioning in Slicer 5.10.0](https://discourse.slicer.org/t/add-scalar-volumes-not-functioning-in-slicer-5-10-0/46952)

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**Author:** [@Hualiama](https://discourse.slicer.org/u/Hualiama)\
**Replies:** 2\
**Last updated:** [May 7, 2026, 2:19pm UTC](https://discourse.slicer.org/t/add-scalar-volumes-not-functioning-in-slicer-5-10-0/46952 "2026-05-07T14:19:13Z")

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Good Day All, I have been working on a study of the femur with a set of scans that have been split across two DICOM series. See below image for reference. I intend to reconstruct the femur with the inferior condyle …

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## [Strange folder bug](https://discourse.slicer.org/t/strange-folder-bug/46835)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 3\
**Last updated:** [May 7, 2026, 11:14am UTC](https://discourse.slicer.org/t/strange-folder-bug/46835 "2026-05-07T11:14:40Z")

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In the latest preview in Macos, data module is behaving strangely: Load two models in a blank scene Create a NewFolder Put the models in the NewFolder Hit the visibility icon at the NewFolder and notice that those two …

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## [Viewer for different modalities at the same time](https://discourse.slicer.org/t/viewer-for-different-modalities-at-the-same-time/46896)

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**Author:** [@Sahar\_KARIMI](https://discourse.slicer.org/u/Sahar_KARIMI)\
**Replies:** 3\
**Last updated:** [May 6, 2026, 5:37pm UTC](https://discourse.slicer.org/t/viewer-for-different-modalities-at-the-same-time/46896 "2026-05-06T17:37:54Z")

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Good afternoon, I am working with 3D-slicer viewer and I want to be able to visualize different sequences at the same time, lets say comparing 2 image modalities/sequences at the same time (one be main and other transpa…

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## [SlicerSkinMouldGenerator Extension Error](https://discourse.slicer.org/t/slicerskinmouldgenerator-extension-error/43998)

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**Author:** [@koobcbc](https://discourse.slicer.org/u/koobcbc)\
**Replies:** 1\
**Last updated:** [May 6, 2026, 4:42pm UTC](https://discourse.slicer.org/t/slicerskinmouldgenerator-extension-error/43998 "2026-05-06T16:42:11Z")

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I followed the steps outlined in the markdown, but I still encountered this error and I wanted to ask for help in understanding why this is being caused. I would appreciate your response. @lassoan @cpinter

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## [Can 3D Slicer run in external SSD?](https://discourse.slicer.org/t/can-3d-slicer-run-in-external-ssd/46939)

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**Author:** [@Akhmad\_Fauzan](https://discourse.slicer.org/u/Akhmad_Fauzan)\
**Replies:** 1\
**Last updated:** [May 6, 2026, 2:43pm UTC](https://discourse.slicer.org/t/can-3d-slicer-run-in-external-ssd/46939 "2026-05-06T14:43:42Z")

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I was wondering if it is possible to run 3D Slicer directly from an external SSD? I would appreciate the insights on this. Thank you.

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## [why cant i download ？](https://discourse.slicer.org/t/why-cant-i-download/46938)

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**Author:** [@bluefriend50f](https://discourse.slicer.org/u/bluefriend50f)\
**Replies:** 0\
**Last updated:** [May 6, 2026, 2:35pm UTC](https://discourse.slicer.org/t/why-cant-i-download/46938 "2026-05-06T14:35:10Z")

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when i click a link to download mrb，the outcome is The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.drive me crazy，such as http://slicer.kitware.com/…

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## [PLUS server support for motion capture systems (Optitrack with Motive 3.x and VICON)](https://discourse.slicer.org/t/plus-server-support-for-motion-capture-systems-optitrack-with-motive-3-x-and-vicon/38111)

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**Author:** [@modenaxe](https://discourse.slicer.org/u/modenaxe)\
**Replies:** 5\
**Last updated:** [May 6, 2026, 12:40pm UTC](https://discourse.slicer.org/t/plus-server-support-for-motion-capture-systems-optitrack-with-motive-3-x-and-vicon/38111 "2026-05-06T12:40:04Z")

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Hello, I am looking into the PLUS toolkit documentation and tutorials with the aim of building a 3D Ultrasound setup and I am writing with the hope of understanding if the support to the Optitrack motion capture system…

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## [Segmentation bounds cropped even when "cropped to minimum extent" is unchecked](https://discourse.slicer.org/t/segmentation-bounds-cropped-even-when-cropped-to-minimum-extent-is-unchecked/46920)

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**Author:** [@hherhold](https://discourse.slicer.org/u/hherhold)\
**Replies:** 3\
**Last updated:** [May 6, 2026, 5:36am UTC](https://discourse.slicer.org/t/segmentation-bounds-cropped-even-when-cropped-to-minimum-extent-is-unchecked/46920 "2026-05-06T05:36:36Z")

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Sequence of events: Create segmentation using slicer modify segmentation in external python script using pynrrd re-import segmentation into slicer modify segmentation in slicer save segmentation This saved segmentation…

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## [Persistent Error when Generating SkinMould](https://discourse.slicer.org/t/persistent-error-when-generating-skinmould/46930)

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**Author:** [@MichaelRuiz95](https://discourse.slicer.org/u/MichaelRuiz95)\
**Replies:** 0\
**Last updated:** [May 5, 2026, 2:52pm UTC](https://discourse.slicer.org/t/persistent-error-when-generating-skinmould/46930 "2026-05-05T14:52:22Z")

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Hello! My name is Michael, I am an undergrad student currently doing a senior research project that involves the use of 3DSlicer. It is a great application, however when I try to generate a skin mould to generate a mode…

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## [TotalSegmentator fails to install PyTorch dependencies – installTorch() got unexpected keyword argument 'torchVisionVersionRequirement'](https://discourse.slicer.org/t/totalsegmentator-fails-to-install-pytorch-dependencies-installtorch-got-unexpected-keyword-argument-torchvisionversionrequirement/46911)

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**Author:** [@Madison\_Golledge](https://discourse.slicer.org/u/Madison_Golledge)\
**Replies:** 9\
**Last updated:** [May 5, 2026, 11:40am UTC](https://discourse.slicer.org/t/totalsegmentator-fails-to-install-pytorch-dependencies-installtorch-got-unexpected-keyword-argument-torchvisionversionrequirement/46911 "2026-05-05T11:40:08Z")

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I’m trying to use the TotalSegmentator extension in 3D Slicer for segmenting an MRI dataset, but I’m running into a consistent error during the dependency installation step. When clicking “Apply” in the TotalSegmentator…

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## [Create of the new preset in ASD/VSD device simulator topic](https://discourse.slicer.org/t/create-of-the-new-preset-in-asd-vsd-device-simulator-topic/46925)

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**Author:** [@Kamil.Kadyrov](https://discourse.slicer.org/u/Kamil.Kadyrov)\
**Replies:** 0\
**Last updated:** [May 5, 2026, 10:19am UTC](https://discourse.slicer.org/t/create-of-the-new-preset-in-asd-vsd-device-simulator-topic/46925 "2026-05-05T10:19:01Z")

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Hi everybody! Does anyone know how to add my own preset into the custom device section inside ASD/VSD device simulator topic? Is there a possibility to do it whatsoever?

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## [Pencil tool not visible on some slices, but works in 3D view](https://discourse.slicer.org/t/pencil-tool-not-visible-on-some-slices-but-works-in-3d-view/46908)

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**Author:** [@Alexander\_Schirkow](https://discourse.slicer.org/u/Alexander_Schirkow)\
**Replies:** 2\
**Last updated:** [May 5, 2026, 3:16am UTC](https://discourse.slicer.org/t/pencil-tool-not-visible-on-some-slices-but-works-in-3d-view/46908 "2026-05-05T03:16:25Z")

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Hello, I encountered an issue when using the Pencil tool in Segment Editor. On some slices and with certain datasets, the pencil strokes are not visible in the 2D views (axial/sagittal/coronal). However, in the 3D view …

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## [Paint brush requires large movement before stroke begins — Wacom Intuos M tablet](https://discourse.slicer.org/t/paint-brush-requires-large-movement-before-stroke-begins-wacom-intuos-m-tablet/46879)

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**Author:** [@Alexander\_Pfeifer](https://discourse.slicer.org/u/Alexander_Pfeifer)\
**Replies:** 2\
**Last updated:** [May 4, 2026, 7:57pm UTC](https://discourse.slicer.org/t/paint-brush-requires-large-movement-before-stroke-begins-wacom-intuos-m-tablet/46879 "2026-05-04T19:57:31Z")

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Operating system: Windows Slicer version: 5.10.0 When using the Paint effect in Segment Editor with a Wacom Intuos M tablet on Windows, the brush requires a large physical movement before it starts painting. A short mo…

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## [Sidexis 4 and 3D Slicer?](https://discourse.slicer.org/t/sidexis-4-and-3d-slicer/46893)

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**Author:** [@drychen](https://discourse.slicer.org/u/drychen)\
**Replies:** 1\
**Last updated:** [May 4, 2026, 7:46pm UTC](https://discourse.slicer.org/t/sidexis-4-and-3d-slicer/46893 "2026-05-04T19:46:02Z")

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I can’t import the exported DICOM files from Sidexis 4 into my 3D slicer. I keep getting the following error message: 902: RawBlobs \[Scalar Volume\]: Reference image in series does not contain geometry information. Please…

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## [No linux preview build since 4/22](https://discourse.slicer.org/t/no-linux-preview-build-since-4-22/46889)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 2\
**Last updated:** [May 4, 2026, 7:30pm UTC](https://discourse.slicer.org/t/no-linux-preview-build-since-4-22/46889 "2026-05-04T19:30:42Z")

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I just downloaded the latest preview for Linux and it is dated 4/22. @Sam\_Horvath @ebrahim

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## [Visualization of continuous uncertainty maps in 3D Slicer (volume appears uniform color)](https://discourse.slicer.org/t/visualization-of-continuous-uncertainty-maps-in-3d-slicer-volume-appears-uniform-color/46892)

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**Author:** [@Alexia\_Canosa\_Rojo](https://discourse.slicer.org/u/Alexia_Canosa_Rojo)\
**Replies:** 4\
**Last updated:** [May 2, 2026, 3:21pm UTC](https://discourse.slicer.org/t/visualization-of-continuous-uncertainty-maps-in-3d-slicer-volume-appears-uniform-color/46892 "2026-05-02T15:21:55Z")

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Hi, I am trying to visualize a continuous uncertainty map (entropy-based) generated from a deep learning segmentation model in 3D Slicer. The NIfTI file contains floating-point values (not binary), with a range approxi…

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## [Recommendations for viewing and orienting 2D echocardiography slices in 3D viewer](https://discourse.slicer.org/t/recommendations-for-viewing-and-orienting-2d-echocardiography-slices-in-3d-viewer/46849)

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**Author:** [@aabrown100-git](https://discourse.slicer.org/u/aabrown100-git)\
**Replies:** 10\
**Last updated:** [May 1, 2026, 8:01pm UTC](https://discourse.slicer.org/t/recommendations-for-viewing-and-orienting-2d-echocardiography-slices-in-3d-viewer/46849 "2026-05-01T20:01:09Z")

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I have DICOM data containing 2D echocardiography time sequence. I want to visualize and orient these in the 3D viewer so that I can overlay them with 3D CT/MRI images from the same patient. What’s the best way to do this…

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## [how to convert from sideaxis-4 to standard DICOM format](https://discourse.slicer.org/t/how-to-convert-from-sideaxis-4-to-standard-dicom-format/40908)

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**Author:** [@ng0177](https://discourse.slicer.org/u/ng0177)\
**Replies:** 1\
**Last updated:** [May 1, 2026, 7:22am UTC](https://discourse.slicer.org/t/how-to-convert-from-sideaxis-4-to-standard-dicom-format/40908 "2026-05-01T07:22:52Z")

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Hello, is anyone aware of how to convert from their format to standard DICOM so it can be read by 3Dslicer? Apparently, they are using a wrapper… Thanks!

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## [slicer dashboard](https://discourse.slicer.org/t/slicer-dashboard/46328)

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**Author:** [@Fatima.k](https://discourse.slicer.org/u/Fatima.k)\
**Replies:** 5\
**Last updated:** [May 1, 2026, 3:58am UTC](https://discourse.slicer.org/t/slicer-dashboard/46328 "2026-05-01T03:58:02Z")

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Hi there, Is there any way/possibility that I can use slicer viewer in web-dashboard as well as import/call some of the extension into the dashboard without needing to install and import whole slicer app into the dashboa…

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## [How to show a transform in only one view](https://discourse.slicer.org/t/how-to-show-a-transform-in-only-one-view/46877)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 4\
**Last updated:** [April 30, 2026, 8:39pm UTC](https://discourse.slicer.org/t/how-to-show-a-transform-in-only-one-view/46877 "2026-04-30T20:39:35Z")

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I have a Displacement field Transform and I want to visualise it only in one 2D view. I couldn’t find it in the UI and I couldn’t figure out how to do it in python. Is there a way to do that?

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## [how to edit an obj file ](https://discourse.slicer.org/t/how-to-edit-an-obj-file/46869)

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**Author:** [@ellenku](https://discourse.slicer.org/u/ellenku)\
**Replies:** 2\
**Last updated:** [April 30, 2026, 10:24am UTC](https://discourse.slicer.org/t/how-to-edit-an-obj-file/46869 "2026-04-30T10:24:37Z")

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Hello! I have a bunch of cranial endocast saved in obj form. I want to try to section of the cerebellum region, and I think this should be possible in maybe segment editor. However, since the obj is mesh model, i cannot…

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## [Problem fiducial registration wizard](https://discourse.slicer.org/t/problem-fiducial-registration-wizard/46875)

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**Author:** [@Zaky\_Alfarizi](https://discourse.slicer.org/u/Zaky_Alfarizi)\
**Replies:** 0\
**Last updated:** [April 30, 2026, 7:48am UTC](https://discourse.slicer.org/t/problem-fiducial-registration-wizard/46875 "2026-04-30T07:48:04Z")

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Check this out. What happen to my system? why the S in RAS have number ±600? i have doin pivot calibration with rmse 0.3 stylus to stylus tip. whats wrong? so its make the transform matrix IS have number ±1300, please ex…

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## [Segementing mri doesnt do continous layer](https://discourse.slicer.org/t/segementing-mri-doesnt-do-continous-layer/46868)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 1\
**Last updated:** [April 29, 2026, 8:57pm UTC](https://discourse.slicer.org/t/segementing-mri-doesnt-do-continous-layer/46868 "2026-04-29T20:57:49Z")

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im experimenting with mri segmentation . sometimes it works fine but started to get this error more often . when i draw or pain i get some area segmented some are not .

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## [Surface Toolbox Clean model does not remove unconnected points](https://discourse.slicer.org/t/surface-toolbox-clean-model-does-not-remove-unconnected-points/46873)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 0\
**Last updated:** [April 29, 2026, 8:44pm UTC](https://discourse.slicer.org/t/surface-toolbox-clean-model-does-not-remove-unconnected-points/46873 "2026-04-29T20:44:10Z")

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I have a model which has points which are not part of any triangles. When I use vtkImplicitPolyDataDistance filters, distances to these points can come back as always negative, which is supposed to indicate that the pro…

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## [Question on Contour Editing](https://discourse.slicer.org/t/question-on-contour-editing/38230)

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**Author:** [@alientex](https://discourse.slicer.org/u/alientex)\
**Replies:** 19\
**Last updated:** [April 29, 2026, 7:29pm UTC](https://discourse.slicer.org/t/question-on-contour-editing/38230 "2026-04-29T19:29:12Z")

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Hello, Once a contour is available, I would like to manually adjust it by grabbing and moving the contour points. Additionally, a magnetic effect should be there to pull the constructed contour closer to the surface. I…

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