# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=116

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

**Page:** 117

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## [SlicerTerminologyNavigatorWidget single category selection](https://discourse.slicer.org/t/slicerterminologynavigatorwidget-single-category-selection/34051)

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**Author:** [@che85](https://discourse.slicer.org/u/che85)\
**Replies:** 0\
**Last updated:** [January 30, 2024, 8:18pm UTC](https://discourse.slicer.org/t/slicerterminologynavigatorwidget-single-category-selection/34051 "2024-01-30T20:18:33Z")

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Hi, is there any way to tell the SlicerTerminologyNavigatorWidget to not select all categories? I think it would be very helpful to have a single selection mode here. In the example below, I would either have to filter…

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## [Smoothing vtkPolyData](https://discourse.slicer.org/t/smoothing-vtkpolydata/18969)

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**Author:** [@manuela\_lizarazu](https://discourse.slicer.org/u/manuela_lizarazu)\
**Replies:** 3\
**Last updated:** [January 30, 2024, 6:23pm UTC](https://discourse.slicer.org/t/smoothing-vtkpolydata/18969 "2024-01-30T18:23:19Z")

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Hi I am trying to smooth a vtkPolyData surface mesh. I do not have the smoothing brush because is not a segmentation. I can see the data under the models module. Do you how this can be achieved? Thanks!!!

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## [Histogram with the Hounsfield scale of segmented](https://discourse.slicer.org/t/histogram-with-the-hounsfield-scale-of-segmented/12433)

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**Author:** [@cotozakot](https://discourse.slicer.org/u/cotozakot)\
**Replies:** 7\
**Last updated:** [January 30, 2024, 4:29pm UTC](https://discourse.slicer.org/t/histogram-with-the-hounsfield-scale-of-segmented/12433 "2024-01-30T16:29:49Z")

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Operating system: Windows Slicer version: 4.11.0 Expected behavior: Actual behavior: I have segmented. As for this manually made segmentation, I can make a histogram with the Housfield scale for each single layer. I …

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## [SlicerCAT : Visual Studio Intellisense does not working](https://discourse.slicer.org/t/slicercat-visual-studio-intellisense-does-not-working/33834)

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**Author:** [@msg4790](https://discourse.slicer.org/u/msg4790)\
**Replies:** 2\
**Last updated:** [January 30, 2024, 8:16am UTC](https://discourse.slicer.org/t/slicercat-visual-studio-intellisense-does-not-working/33834 "2024-01-30T08:16:22Z")

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Operating system: Windows 10 Slicer version: latest on github(i think) Expected behavior: IntelliSense must properly assist with autocomplete. Actual behavior: The items provided in autocomplete are only those that ar…

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## [Coordinate system between slicer 3d and paraview](https://discourse.slicer.org/t/coordinate-system-between-slicer-3d-and-paraview/34032)

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**Author:** [@michaelli](https://discourse.slicer.org/u/michaelli)\
**Replies:** 0\
**Last updated:** [January 29, 2024, 8:47pm UTC](https://discourse.slicer.org/t/coordinate-system-between-slicer-3d-and-paraview/34032 "2024-01-29T20:47:32Z")

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I extracted the centerline of a vessel by the VMTK module. I want to import the centerline to Paraview. The RAS coordinates seem not aligned with the geometry (STL) in ParaView. My question is how to transform the coord…

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## [Hello, I'm working with MR canine images. I need to extract the total intracranial volume of the patient, is there any extension that does the same as SwissSkullStriper that I can use?](https://discourse.slicer.org/t/hello-im-working-with-mr-canine-images-i-need-to-extract-the-total-intracranial-volume-of-the-patient-is-there-any-extension-that-does-the-same-as-swissskullstriper-that-i-can-use/34028)

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**Author:** [@Ana\_Gonzalez\_Aranda](https://discourse.slicer.org/u/Ana_Gonzalez_Aranda)\
**Replies:** 0\
**Last updated:** [January 29, 2024, 6:21pm UTC](https://discourse.slicer.org/t/hello-im-working-with-mr-canine-images-i-need-to-extract-the-total-intracranial-volume-of-the-patient-is-there-any-extension-that-does-the-same-as-swissskullstriper-that-i-can-use/34028 "2024-01-29T18:21:56Z")

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

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## [How to convert BMP CT scan slices into properly scaled viewable model ?](https://discourse.slicer.org/t/how-to-convert-bmp-ct-scan-slices-into-properly-scaled-viewable-model/19094)

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**Author:** [@mdear](https://discourse.slicer.org/u/mdear)\
**Replies:** 5\
**Last updated:** [January 29, 2024, 4:55pm UTC](https://discourse.slicer.org/t/how-to-convert-bmp-ct-scan-slices-into-properly-scaled-viewable-model/19094 "2024-01-29T16:55:57Z")

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I received an airway scan from radiology and I want to create a viewable rotatable correctly scaled model. I plan to scan a prototype tracheostomy tube and check for fit prior to insertion into the patient. The scan ca…

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## [Raystation-like brush for contours](https://discourse.slicer.org/t/raystation-like-brush-for-contours/33905)

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**Author:** [@strider\_hunter](https://discourse.slicer.org/u/strider_hunter)\
**Replies:** 12\
**Last updated:** [January 29, 2024, 3:35pm UTC](https://discourse.slicer.org/t/raystation-like-brush-for-contours/33905 "2024-01-29T15:35:52Z")

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Hi, Is it possible to edit contours like in RayStation (radiotherapy contouring and planning software). It basically pushes or repulses existing contours using a circular brush Find attached a video/image Upd…

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## [Is there a guide for 3D printing anatomical structures?](https://discourse.slicer.org/t/is-there-a-guide-for-3d-printing-anatomical-structures/34001)

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**Author:** [@bcolbert](https://discourse.slicer.org/u/bcolbert)\
**Replies:** 1\
**Last updated:** [January 28, 2024, 7:32pm UTC](https://discourse.slicer.org/t/is-there-a-guide-for-3d-printing-anatomical-structures/34001 "2024-01-28T19:32:19Z")

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I have very small structures segmented. I typically export these as ply files for analyses but i want to 3D print larger versions of these structures. Assuming i have access to a printer capable of printing stl and obj …

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## [missing slices when loading dicom data](https://discourse.slicer.org/t/missing-slices-when-loading-dicom-data/33992)

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**Author:** [@zkb](https://discourse.slicer.org/u/zkb)\
**Replies:** 5\
**Last updated:** [January 28, 2024, 2:10pm UTC](https://discourse.slicer.org/t/missing-slices-when-loading-dicom-data/33992 "2024-01-28T14:10:07Z")

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Operating system: windows Slicer version:4.10.2 Expected behavior: I have a dicom folder which includes 50 dicom files, which means that this image include 50 slices or say the aixal images are 50 in total. However, af…

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## [How to change icon size in QMenu action?](https://discourse.slicer.org/t/how-to-change-icon-size-in-qmenu-action/33995)

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**Author:** [@kiki](https://discourse.slicer.org/u/kiki)\
**Replies:** 1\
**Last updated:** [January 26, 2024, 6:08pm UTC](https://discourse.slicer.org/t/how-to-change-icon-size-in-qmenu-action/33995 "2024-01-26T18:08:11Z")

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Hello, I’ve created a QMenu with three actions and set icons to the actions using the setIcon method. The problem is that I am not able to adjust the size of the icons in the QMenu. Is there a way to change it?

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## [What is 3D Slicer's "built in time sequence" capabilities?](https://discourse.slicer.org/t/what-is-3d-slicers-built-in-time-sequence-capabilities/33998)

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**Author:** [@Jacqueline\_Banh](https://discourse.slicer.org/u/Jacqueline_Banh)\
**Replies:** 2\
**Last updated:** [January 27, 2024, 1:02am UTC](https://discourse.slicer.org/t/what-is-3d-slicers-built-in-time-sequence-capabilities/33998 "2024-01-27T01:02:00Z")

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

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## [Issue with NIfTI Image Orientation After DICOM Conversion](https://discourse.slicer.org/t/issue-with-nifti-image-orientation-after-dicom-conversion/31792)

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**Author:** [@sara1](https://discourse.slicer.org/u/sara1)\
**Replies:** 9\
**Last updated:** [January 27, 2024, 12:16am UTC](https://discourse.slicer.org/t/issue-with-nifti-image-orientation-after-dicom-conversion/31792 "2024-01-27T00:16:13Z")

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Operating system: Windows Slicer version: 5.4.0. Hello, I’m having an issue with the orientation of NIfTI images that I’ve created from DICOM series using custom code. After dividing the DICOMs into batches of 64 and …

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## [Sandbox module cannot be downloaded via extension manager today?](https://discourse.slicer.org/t/sandbox-module-cannot-be-downloaded-via-extension-manager-today/33809)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 30\
**Last updated:** [January 26, 2024, 10:37pm UTC](https://discourse.slicer.org/t/sandbox-module-cannot-be-downloaded-via-extension-manager-today/33809 "2024-01-26T22:37:17Z")

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I am trying to set up a new computer with Slicer 5.6.1 and the extensions I use. I am unable to download the Sandbox extension via the extension manager today. I see it listed in the browser, but when I click to “Insta…

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## [HD Brain Extraction Tool](https://discourse.slicer.org/t/hd-brain-extraction-tool/33991)

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**Author:** [@duan](https://discourse.slicer.org/u/duan)\
**Replies:** 1\
**Last updated:** [January 26, 2024, 5:48pm UTC](https://discourse.slicer.org/t/hd-brain-extraction-tool/33991 "2024-01-26T17:48:16Z")

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Hello, I have a question about HD Brain Extraction Tool here! During the calculation process, I often get an error when I click apply. As shown in the figure, there is an error message, because I am in China, so I analyz…

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## [Segmentation template](https://discourse.slicer.org/t/segmentation-template/25468)

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**Author:** [@James\_Goldfarb](https://discourse.slicer.org/u/James_Goldfarb)\
**Replies:** 2\
**Last updated:** [January 26, 2024, 5:20pm UTC](https://discourse.slicer.org/t/segmentation-template/25468 "2024-01-26T17:20:50Z")

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Hi, I would appreciate any tips on setting up a template (segmentations, segments and colors) for use on multiple patient studies (nii). This would guarantee identical segmentation and segment names and colors for eac…

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## [DICOM and Sample Data menu items not showing up in file menu in translated application (Chinese)](https://discourse.slicer.org/t/dicom-and-sample-data-menu-items-not-showing-up-in-file-menu-in-translated-application-chinese/21903)

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**Author:** [@cyufu](https://discourse.slicer.org/u/cyufu)\
**Replies:** 1\
**Last updated:** [February 11, 2022, 5:12am UTC](https://discourse.slicer.org/t/dicom-and-sample-data-menu-items-not-showing-up-in-file-menu-in-translated-application-chinese/21903 "2022-02-11T05:12:11Z")

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After slicer is localized, the menu items are reduced.File→no download sample data & DICOM

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## [ label dental scan mesh(stl) for segmentation](https://discourse.slicer.org/t/label-dental-scan-mesh-stl-for-segmentation/33990)

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**Author:** [@Scabbards](https://discourse.slicer.org/u/Scabbards)\
**Replies:** 0\
**Last updated:** [January 26, 2024, 3:21pm UTC](https://discourse.slicer.org/t/label-dental-scan-mesh-stl-for-segmentation/33990 "2024-01-26T15:21:59Z")

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Operating system: Win11 Slicer version:5.4.0 Expected behavior: I except I can label mesh data Actual behavior: Can’t use pen to label the mesh document. Then how can I have a labeled mesh like this?

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## [DWI tractography](https://discourse.slicer.org/t/dwi-tractography/33982)

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**Author:** [@Pranali](https://discourse.slicer.org/u/Pranali)\
**Replies:** 1\
**Last updated:** [January 26, 2024, 1:08pm UTC](https://discourse.slicer.org/t/dwi-tractography/33982 "2024-01-26T13:08:46Z")

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I have an niii.gz file with bval and bvec, how to convert to nrrd using slicer?

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## [AttributeError: type object 'vtkSlicerSegmentationsModuleMRMLPython.vtkMRMLSegm' has no attribute 'PaintAllowedEverywhere'](https://discourse.slicer.org/t/attributeerror-type-object-vtkslicersegmentationsmodulemrmlpython-vtkmrmlsegm-has-no-attribute-paintallowedeverywhere/33985)

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**Author:** [@paleomariomm](https://discourse.slicer.org/u/paleomariomm)\
**Replies:** 1\
**Last updated:** [January 26, 2024, 10:53am UTC](https://discourse.slicer.org/t/attributeerror-type-object-vtkslicersegmentationsmodulemrmlpython-vtkmrmlsegm-has-no-attribute-paintallowedeverywhere/33985 "2024-01-26T10:53:48Z")

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I am creating a script to run iteratively over subfolders with baboon skull CTs in DICOM format. In the pipeline, I need to do a segmentation of the full skulls via Thresholding (which works nice in the script) and and …

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## [How to create a new volume from pre-segmented slices?](https://discourse.slicer.org/t/how-to-create-a-new-volume-from-pre-segmented-slices/33750)

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**Author:** [@andrade.pha](https://discourse.slicer.org/u/andrade.pha)\
**Replies:** 2\
**Last updated:** [January 26, 2024, 9:44am UTC](https://discourse.slicer.org/t/how-to-create-a-new-volume-from-pre-segmented-slices/33750 "2024-01-26T09:44:37Z")

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Hello, I performed segmentation on a volume of 100 DICOM images (CT), and now I would like to select and export only 25 specific slices that have already been segmented. Essentially, I want to have a new volume consisti…

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## [Model Scale and Position Incorrect in 3DSlicer](https://discourse.slicer.org/t/model-scale-and-position-incorrect-in-3dslicer/33872)

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**Author:** [@ebf](https://discourse.slicer.org/u/ebf)\
**Replies:** 2\
**Last updated:** [January 26, 2024, 9:37am UTC](https://discourse.slicer.org/t/model-scale-and-position-incorrect-in-3dslicer/33872 "2024-01-26T09:37:17Z")

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My models (from photogrammetry) have correct scale and position in Metashape but when I open them in 3DSlicer, they do not retain their scale or x, y, z position. Has anyone else encountered this issue? How was it resolv…

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## [Separate CT cuts](https://discourse.slicer.org/t/separate-ct-cuts/33983)

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**Author:** [@sima](https://discourse.slicer.org/u/sima)\
**Replies:** 0\
**Last updated:** [January 26, 2024, 7:47am UTC](https://discourse.slicer.org/t/separate-ct-cuts/33983 "2024-01-26T07:47:34Z")

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Hello everyone, I have a structure called “ptv” inside the body, and I also have the “skin” structure. I want to separate all CT scans that contain both “ptv” and “skin”. It would be better for me to have an additional …

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## [Centerline errors - help](https://discourse.slicer.org/t/centerline-errors-help/33945)

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**Author:** [@tahmidullah](https://discourse.slicer.org/u/tahmidullah)\
**Replies:** 3\
**Last updated:** [January 26, 2024, 2:46am UTC](https://discourse.slicer.org/t/centerline-errors-help/33945 "2024-01-26T02:46:32Z")

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Hi all, I am having some trouble deriving the centerline from my stl. I have attached some pictures of the settings and the issues with the centerline when using the vascular modeling toolkit extension. Thank you so muc…

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## [Overwrite existing segments when copying a new segment](https://discourse.slicer.org/t/overwrite-existing-segments-when-copying-a-new-segment/33961)

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**Author:** [@rphellan2210](https://discourse.slicer.org/u/rphellan2210)\
**Replies:** 2\
**Last updated:** [January 26, 2024, 2:23am UTC](https://discourse.slicer.org/t/overwrite-existing-segments-when-copying-a-new-segment/33961 "2024-01-26T02:23:07Z")

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Hello, I have a vtkSegmentation with vtkSegments. When I use the method CopySegmentFromSegmentation(segmentation, segmentId), the corresponding vtkSegment is copied and overlaps the existing vtkSegments in the original …

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## [Help Understanding Scalar Value Units](https://discourse.slicer.org/t/help-understanding-scalar-value-units/33978)

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**Author:** [@Jennifer\_Ortiz](https://discourse.slicer.org/u/Jennifer_Ortiz)\
**Replies:** 0\
**Last updated:** [January 25, 2024, 11:28pm UTC](https://discourse.slicer.org/t/help-understanding-scalar-value-units/33978 "2024-01-25T23:28:19Z")

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Hi all! I am pretty new to 3Dslicer and was wondering if anyone knew if the scalar values had any specific units or if they are just relative (the thicker the area the higher the value)? I am working on CT scanning shell…

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## [Combining Segmentations](https://discourse.slicer.org/t/combining-segmentations/19381)

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**Author:** [@Alberto\_Paredes](https://discourse.slicer.org/u/Alberto_Paredes)\
**Replies:** 4\
**Last updated:** [January 25, 2024, 10:04pm UTC](https://discourse.slicer.org/t/combining-segmentations/19381 "2024-01-25T22:04:41Z")

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Is there a way in 3D Slicer to combine two segmentations as one segmentation?

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## [Resizing the pink box around my model](https://discourse.slicer.org/t/resizing-the-pink-box-around-my-model/33970)

<div class="topic-metadata">

**Author:** [@hloughlin](https://discourse.slicer.org/u/hloughlin)\
**Replies:** 2\
**Last updated:** [January 25, 2024, 5:56pm UTC](https://discourse.slicer.org/t/resizing-the-pink-box-around-my-model/33970 "2024-01-25T17:56:30Z")

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I uploaded my .obj into slicer and the pink/purple box that surrounds it is is way off. The model appears at the top right corner of the box and the box is super big. Is there a way to resize the box so that it fits clos…

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## [Slicer 5.7.0 does not show MIP properly](https://discourse.slicer.org/t/slicer-5-7-0-does-not-show-mip-properly/33973)

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**Author:** [@ruili](https://discourse.slicer.org/u/ruili)\
**Replies:** 1\
**Last updated:** [January 25, 2024, 5:30pm UTC](https://discourse.slicer.org/t/slicer-5-7-0-does-not-show-mip-properly/33973 "2024-01-25T17:30:35Z")

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Hello, I would like to report a possible bug with slicer 5.7.0 revision 32698 built 2024-01-25 for Mac system. In module “Volume Rendering”, when I tried to show the maximum/minimum intensity projection of a volume, it …

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## [Radiomics Module](https://discourse.slicer.org/t/radiomics-module/33976)

<div class="topic-metadata">

**Author:** [@Francesco\_Mariotti1](https://discourse.slicer.org/u/Francesco_Mariotti1)\
**Replies:** 2\
**Last updated:** [January 25, 2024, 5:05pm UTC](https://discourse.slicer.org/t/radiomics-module/33976 "2024-01-25T17:05:44Z")

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Good Morning, can someone please help me find a working version of radiomics module for 3D Slicer 5.4.0? I cannot find it anymore in the available modules to be downloaded.

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