# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=229

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

**Page:** 230

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## [SegmentEditor: How to keep the outline size the same？](https://discourse.slicer.org/t/segmenteditor-how-to-keep-the-outline-size-the-same/22850)

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**Author:** [@caiqj1203](https://discourse.slicer.org/u/caiqj1203)\
**Replies:** 2\
**Last updated:** [April 6, 2022, 3:09pm UTC](https://discourse.slicer.org/t/segmenteditor-how-to-keep-the-outline-size-the-same/22850 "2022-04-06T15:09:58Z")

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I use SegmentEditor Module to add a segmentation and paint contour of nodule and then, I export segmentation to file, reload it, show it’s contour of 2d view, the contour change smaller How to keep the outline si…

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## [Object mirroring with points and curves](https://discourse.slicer.org/t/object-mirroring-with-points-and-curves/22849)

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**Author:** [@Kajak](https://discourse.slicer.org/u/Kajak)\
**Replies:** 0\
**Last updated:** [April 6, 2022, 12:38pm UTC](https://discourse.slicer.org/t/object-mirroring-with-points-and-curves/22849 "2022-04-06T12:38:31Z")

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Hello, I would like to ask if it is possible to mirror a model with markups and curves. Thanks!

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## [Detect when new vtkMRMLScalarVolumeNode with DICOM data has been added](https://discourse.slicer.org/t/detect-when-new-vtkmrmlscalarvolumenode-with-dicom-data-has-been-added/22844)

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**Author:** [@bruce](https://discourse.slicer.org/u/bruce)\
**Replies:** 1\
**Last updated:** [April 6, 2022, 5:40am UTC](https://discourse.slicer.org/t/detect-when-new-vtkmrmlscalarvolumenode-with-dicom-data-has-been-added/22844 "2022-04-06T05:40:31Z")

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Hello, I am writing a ScriptedLoadableModule that includes a custom table of all nodes loaded directly from DICOM data (along with custom information relating to these nodes). The table is populated based on whether DIC…

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## [Segmentation from point cloud](https://discourse.slicer.org/t/segmentation-from-point-cloud/22843)

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**Author:** [@Saima](https://discourse.slicer.org/u/Saima)\
**Replies:** 1\
**Last updated:** [April 6, 2022, 5:24am UTC](https://discourse.slicer.org/t/segmentation-from-point-cloud/22843 "2022-04-06T05:24:32Z")

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Dear Andras, I have .vtk a surface mesh, which I generated using pyvista using cloud of points. I could not see .vtk in slicer but I can see in paraview and I convert it into vtp and now ican see the file in slicer. I …

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## [How to create volumetric mesh from stl files](https://discourse.slicer.org/t/how-to-create-volumetric-mesh-from-stl-files/6653)

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**Author:** [@Tarun\_Choudhary](https://discourse.slicer.org/u/Tarun_Choudhary)\
**Replies:** 9\
**Last updated:** [April 30, 2019, 3:49pm UTC](https://discourse.slicer.org/t/how-to-create-volumetric-mesh-from-stl-files/6653 "2019-04-30T15:49:05Z")

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Hi Andras, Many thanks for your reply. I tried importing stls in 3D slicer as per the instructions you mentioned but I am getting this error message when i click apply button. Mesh generation using Cleaver is started i…

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## [Extension download statistics with the new backend](https://discourse.slicer.org/t/extension-download-statistics-with-the-new-backend/19819)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 13\
**Last updated:** [October 27, 2021, 9:22pm UTC](https://discourse.slicer.org/t/extension-download-statistics-with-the-new-backend/19819 "2021-10-27T21:22:49Z")

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I tried to download the extension download statistics using the stable, and got the error below. This used to work, so I assume this is related to change in extension server. Going forward, what is the plan on obtaining…

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## [SliceWidget change background volume through code](https://discourse.slicer.org/t/slicewidget-change-background-volume-through-code/22838)

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**Author:** [@Fabyan](https://discourse.slicer.org/u/Fabyan)\
**Replies:** 1\
**Last updated:** [April 5, 2022, 6:44pm UTC](https://discourse.slicer.org/t/slicewidget-change-background-volume-through-code/22838 "2022-04-05T18:44:46Z")

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Hi. As the title suggests, I want to be able to change the volume being viewed inside a single SliceWidget through code. I can change the volume here but I was wondering if it is possible to do it through code?

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## [New module: Dynamic Modeler - parametric surface editing for biomedical applications](https://discourse.slicer.org/t/new-module-dynamic-modeler-parametric-surface-editing-for-biomedical-applications/11759)

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**Author:** [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Replies:** 11\
**Last updated:** [April 5, 2022, 3:07pm UTC](https://discourse.slicer.org/t/new-module-dynamic-modeler-parametric-surface-editing-for-biomedical-applications/11759 "2022-04-05T15:07:50Z")

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We have added a new module called “Dynamic Modeler” to the latest Slicer preview releases (4.11). This module provides an extensible framework for automatic processing of mesh nodes by executing “Tools” on the input to g…

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## [PET SUV normalization 3Dslicer](https://discourse.slicer.org/t/pet-suv-normalization-3dslicer/22829)

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**Author:** [@Hanne1234](https://discourse.slicer.org/u/Hanne1234)\
**Replies:** 1\
**Last updated:** [April 5, 2022, 12:21pm UTC](https://discourse.slicer.org/t/pet-suv-normalization-3dslicer/22829 "2022-04-05T12:21:10Z")

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I want to normalize my PET images to the SUV using 3Dslicer. I installed the PETDICOM extension and followed the steps of this video: PETDICOM: PET normalization However, when I try to examine my PET data, there is no P…

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## [Measuring Tumour Volume with 3DSlicer. How?](https://discourse.slicer.org/t/measuring-tumour-volume-with-3dslicer-how/22832)

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**Author:** [@sandigeeup](https://discourse.slicer.org/u/sandigeeup)\
**Replies:** 2\
**Last updated:** [April 5, 2022, 11:30am UTC](https://discourse.slicer.org/t/measuring-tumour-volume-with-3dslicer-how/22832 "2022-04-05T11:30:23Z")

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I will be using 3D Slicer heavily for my thesis. From a range of CT scans the project will require me for each scan, to (a) determine liver tumour volume in the canine b) determine that as a % of total liver volume c) co…

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## [Comparing surface deformation](https://discourse.slicer.org/t/comparing-surface-deformation/22830)

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**Author:** [@BORIPHAT](https://discourse.slicer.org/u/BORIPHAT)\
**Replies:** 0\
**Last updated:** [April 5, 2022, 8:31am UTC](https://discourse.slicer.org/t/comparing-surface-deformation/22830 "2022-04-05T08:31:24Z")

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Hello, all My study is about comparing breast surface deformation between CT image and CBCT images (4 datasets). I would like to know which slice of breast image has the most surface deformation and how much distanc…

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## [Create contour and volume](https://discourse.slicer.org/t/create-contour-and-volume/21422)

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**Author:** [@BORIPHAT](https://discourse.slicer.org/u/BORIPHAT)\
**Replies:** 4\
**Last updated:** [April 5, 2022, 8:28am UTC](https://discourse.slicer.org/t/create-contour-and-volume/21422 "2022-04-05T08:28:37Z")

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Dear Developers and users, Hello, My goal is to compare the breast deformation between CBCT Set 1 and Set 2. I will create the volume of the breast for comparing to get the results, such as volume difference, HD, and DV…

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## [DOSXYZnrc 3D dose (.3ddose)](https://discourse.slicer.org/t/dosxyznrc-3d-dose-3ddose/22828)

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**Author:** [@DUONG\_Thanh\_Tai](https://discourse.slicer.org/u/DUONG_Thanh_Tai)\
**Replies:** 1\
**Last updated:** [April 5, 2022, 7:46am UTC](https://discourse.slicer.org/t/dosxyznrc-3d-dose-3ddose/22828 "2022-04-05T07:46:52Z")

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Dear I want to import DOSXYZnrc 3D dose\*\* (.3ddose) to SlicerRT and then plot DVH Thank you so much Tai

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## [create a structure from an isodose ](https://discourse.slicer.org/t/create-a-structure-from-an-isodose/22818)

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**Author:** [@skefs](https://discourse.slicer.org/u/skefs)\
**Replies:** 1\
**Last updated:** [April 5, 2022, 4:31am UTC](https://discourse.slicer.org/t/create-a-structure-from-an-isodose/22818 "2022-04-05T04:31:27Z")

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Dear all, I would like from a dose matrix to create a structure containing the isodose of my choice. Not having found the solution to my problem, I therefore refer to you. maybe you would have a solution to create a str…

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## [Segmentation of skull bone](https://discourse.slicer.org/t/segmentation-of-skull-bone/22355)

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**Author:** [@DrAssadawy](https://discourse.slicer.org/u/DrAssadawy)\
**Replies:** 2\
**Last updated:** [April 4, 2022, 8:10pm UTC](https://discourse.slicer.org/t/segmentation-of-skull-bone/22355 "2022-04-04T20:10:31Z")

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Operating system: 10 Slicer version:4.1.1 Expected behavior: Actual behavior: fast marching doesn’t work? when I tick initialize nothing occur also I want to use it in maxillary bone segmentation

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## [How to get the proper shape from 3d OCT volume rendering](https://discourse.slicer.org/t/how-to-get-the-proper-shape-from-3d-oct-volume-rendering/6475)

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**Author:** [@sreyankar](https://discourse.slicer.org/u/sreyankar)\
**Replies:** 1\
**Last updated:** [April 4, 2022, 3:17pm UTC](https://discourse.slicer.org/t/how-to-get-the-proper-shape-from-3d-oct-volume-rendering/6475 "2022-04-04T15:17:26Z")

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Operating system: Mac OS X Slicer version: 4.10.1 Expected behavior: Trying to interactively build a 3d model from a stack of circular OCT images from an airway. The boundaries are not very well defined. Actual behavi…

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## [Models of coronary arteries from OCT images](https://discourse.slicer.org/t/models-of-coronary-arteries-from-oct-images/22372)

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**Author:** [@mkozlowski](https://discourse.slicer.org/u/mkozlowski)\
**Replies:** 1\
**Last updated:** [April 4, 2022, 3:12pm UTC](https://discourse.slicer.org/t/models-of-coronary-arteries-from-oct-images/22372 "2022-04-04T15:12:14Z")

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Operating system: masOS High Sierra Slicer version: 4.11.20210226 r29738 / 7a593c8 Hello! I would like to ask for advice about preparation of 3D models of coronary arteries for printing based on OCT data. I’ve read th…

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## [How to properly segment the coronary artery, if it has stenosis?](https://discourse.slicer.org/t/how-to-properly-segment-the-coronary-artery-if-it-has-stenosis/22819)

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**Author:** [@Almagul](https://discourse.slicer.org/u/Almagul)\
**Replies:** 0\
**Last updated:** [April 4, 2022, 3:01pm UTC](https://discourse.slicer.org/t/how-to-properly-segment-the-coronary-artery-if-it-has-stenosis/22819 "2022-04-04T15:01:28Z")

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hello, I’m having difficulty segmenting the coronary arteries in the area of stenosis. tell me how to properly segment the coronary artery, if it has stenosis? I need the artery to become narrower in the area of stenosi…

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## [3D gel dosimetry - Slicelets: Calibration issue](https://discourse.slicer.org/t/3d-gel-dosimetry-slicelets-calibration-issue/22524)

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**Author:** [@Kawtar\_Lakrad](https://discourse.slicer.org/u/Kawtar_Lakrad)\
**Replies:** 6\
**Last updated:** [April 4, 2022, 11:26am UTC](https://discourse.slicer.org/t/3d-gel-dosimetry-slicelets-calibration-issue/22524 "2022-04-04T11:26:56Z")

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Operating system: windows 11 Slicer version: 4:13 I am having issue with the calibration; it is like if it is not applying the equation I am working with. Do you have any idea about this issue? Thank you.

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## [Using json files to create markups](https://discourse.slicer.org/t/using-json-files-to-create-markups/22754)

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**Author:** [@Tulika\_Nandi](https://discourse.slicer.org/u/Tulika_Nandi)\
**Replies:** 6\
**Last updated:** [April 4, 2022, 8:22am UTC](https://discourse.slicer.org/t/using-json-files-to-create-markups/22754 "2022-04-04T08:22:08Z")

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Hi, I’m trying to create a line markup by loading a json file. I am able to see the line in the 3D view but not in the slice views despite trying our various display and visibility options. Could you share an example jso…

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## ["Adding data failed" message when opening MRML file](https://discourse.slicer.org/t/adding-data-failed-message-when-opening-mrml-file/22801)

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**Author:** [@DIV](https://discourse.slicer.org/u/DIV)\
**Replies:** 7\
**Last updated:** [April 4, 2022, 5:57am UTC](https://discourse.slicer.org/t/adding-data-failed-message-when-opening-mrml-file/22801 "2022-04-04T05:57:39Z")

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I have gotten a handful of “adding data failed” “Adding data failed” messages lately when opening individual MRML Scene files. The problematic Scene files would have been created with somewhat older versions of 3D Slice…

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## [To add Widget on Slice Views](https://discourse.slicer.org/t/to-add-widget-on-slice-views/22787)

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**Author:** [@joanne40226](https://discourse.slicer.org/u/joanne40226)\
**Replies:** 8\
**Last updated:** [April 4, 2022, 2:59am UTC](https://discourse.slicer.org/t/to-add-widget-on-slice-views/22787 "2022-04-04T02:59:42Z")

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Hi, I am now working on placing my button group widget on the side of the Slice View. I did it by placing a toolButton on the sliceController. However, the question here is that I want it place on the view forever, …

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## [Flip the camera image](https://discourse.slicer.org/t/flip-the-camera-image/22805)

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**Author:** [@jgc2155338150](https://discourse.slicer.org/u/jgc2155338150)\
**Replies:** 1\
**Last updated:** [April 3, 2022, 1:19pm UTC](https://discourse.slicer.org/t/flip-the-camera-image/22805 "2022-04-03T13:19:44Z")

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Hello, after my 3DSlicer is connected to the camera, the image displayed is upside down, and clicking the center button next to R is just adapt to the center display of the screen, which is still upside down. How do I f…

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## [Connect Slicer 3D with Hololens 2](https://discourse.slicer.org/t/connect-slicer-3d-with-hololens-2/20544)

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**Author:** [@Gabriella-Rus](https://discourse.slicer.org/u/Gabriella-Rus)\
**Replies:** 4\
**Last updated:** [April 2, 2022, 1:40am UTC](https://discourse.slicer.org/t/connect-slicer-3d-with-hololens-2/20544 "2022-04-02T01:40:09Z")

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Hello! I have Hololens 2 and I want to use it to view medical images in Slicer 3D. Is that possible with Slicer’s VR extension?

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## [Radiomics Plugin](https://discourse.slicer.org/t/radiomics-plugin/22785)

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**Author:** [@akmal871026](https://discourse.slicer.org/u/akmal871026)\
**Replies:** 0\
**Last updated:** [March 31, 2022, 11:49pm UTC](https://discourse.slicer.org/t/radiomics-plugin/22785 "2022-03-31T23:49:00Z")

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Hi all, Anyone can give the demo video on how to use the Radiomics plug-in? I don’t know how to use it at all

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## [Can the image slices be made semi-transparent in 3D view?](https://discourse.slicer.org/t/can-the-image-slices-be-made-semi-transparent-in-3d-view/8713)

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**Author:** [@aptirumalai](https://discourse.slicer.org/u/aptirumalai)\
**Replies:** 13\
**Last updated:** [April 1, 2022, 9:10pm UTC](https://discourse.slicer.org/t/can-the-image-slices-be-made-semi-transparent-in-3d-view/8713 "2022-04-01T21:10:49Z")

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Operating system: Slicer version: Expected behavior: Actual behavior:

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## [Extension manager in linux empty](https://discourse.slicer.org/t/extension-manager-in-linux-empty/22343)

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**Author:** [@Alex\_Vergara](https://discourse.slicer.org/u/Alex_Vergara)\
**Replies:** 7\
**Last updated:** [April 1, 2022, 7:27pm UTC](https://discourse.slicer.org/t/extension-manager-in-linux-empty/22343 "2022-04-01T19:27:22Z")

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I have this problem in my linux machine only, no problem in Windows and MacOS. Extension manager is completely empty. Restore extensions however, works fine. I have tried reinstalling from scratch, so no problem of old c…

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## [Module panel hide logo](https://discourse.slicer.org/t/module-panel-hide-logo/22792)

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**Author:** [@gdolle](https://discourse.slicer.org/u/gdolle)\
**Replies:** 3\
**Last updated:** [April 1, 2022, 2:33pm UTC](https://discourse.slicer.org/t/module-panel-hide-logo/22792 "2022-04-01T14:33:12Z")

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Hi everyone, Is there an option/way to hide the 3Dslicer logo in the Module Panel view, the menu bar, and bottom bar with the raise error button ? (I’like to economize some vertical spacing with my small screen) Best r…

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## [Issue about Aruco tracker](https://discourse.slicer.org/t/issue-about-aruco-tracker/22732)

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**Author:** [@user5](https://discourse.slicer.org/u/user5)\
**Replies:** 5\
**Last updated:** [April 1, 2022, 2:28pm UTC](https://discourse.slicer.org/t/issue-about-aruco-tracker/22732 "2022-04-01T14:28:02Z")

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Does anybody have experience in the Aruco tracker? I have tried to use the Aruco tracker by following this link. I generate the tracker successfully, but the moving range is very limited and it cannot move close to my …

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## [Separate Segmentation](https://discourse.slicer.org/t/separate-segmentation/22776)

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**Author:** [@Jakob](https://discourse.slicer.org/u/Jakob)\
**Replies:** 3\
**Last updated:** [April 1, 2022, 1:47pm UTC](https://discourse.slicer.org/t/separate-segmentation/22776 "2022-04-01T13:47:01Z")

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Operating system: macOS Monterey Slicer version: 4.13 Hello! I’ve made a segmentation of the upper airway using the Paint and Grow From Seeds Module in 3D Slicer. Now I would like to separate the segmentation of the up…

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