# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=48

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

**Page:** 49

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## [Costal cartilage and rib cage pediatric segmentation](https://discourse.slicer.org/t/costal-cartilage-and-rib-cage-pediatric-segmentation/42117)

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**Author:** [@Luigi\_Iuppariello](https://discourse.slicer.org/u/Luigi_Iuppariello)\
**Replies:** 1\
**Last updated:** [March 14, 2025, 12:40am UTC](https://discourse.slicer.org/t/costal-cartilage-and-rib-cage-pediatric-segmentation/42117 "2025-03-14T00:40:59Z")

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Hello everyone, I’m having a lot of difficulty segmenting the rib cage and the cartilage of a pediatric patient’s rib cage. This is mainly because the segments are often separated by the sternum, etc., so I can’t effecti…

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## [Is my segmentation not registering to image (source geometry) properly?](https://discourse.slicer.org/t/is-my-segmentation-not-registering-to-image-source-geometry-properly/42053)

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**Author:** [@brianwskim](https://discourse.slicer.org/u/brianwskim)\
**Replies:** 2\
**Last updated:** [March 13, 2025, 10:17pm UTC](https://discourse.slicer.org/t/is-my-segmentation-not-registering-to-image-source-geometry-properly/42053 "2025-03-13T22:17:30Z")

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Operating system: MacOS Sequioa 15.3.1 (24D70) Slicer version: 5.8.0 Expected behavior: Image (NIfTI) and segmentation affine matrices to match after exporting segmentation to binary labelmap and saving to file (as NIf…

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## [Install DentalSegmentator from behind restrictive firewall](https://discourse.slicer.org/t/install-dentalsegmentator-from-behind-restrictive-firewall/39474)

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**Author:** [@xYanshui](https://discourse.slicer.org/u/xYanshui)\
**Replies:** 8\
**Last updated:** [March 13, 2025, 11:12am UTC](https://discourse.slicer.org/t/install-dentalsegmentator-from-behind-restrictive-firewall/39474 "2025-03-13T11:12:46Z")

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Thank you so much for developing the module. I came across with this error while applying segmentation. I tried to download the “.zip” file (“Dataset111\_453CT\_v100” I suppose?) from the guided Github page, and creat…

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## [Calculating Sharpness of a point](https://discourse.slicer.org/t/calculating-sharpness-of-a-point/42097)

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**Author:** [@evergarden](https://discourse.slicer.org/u/evergarden)\
**Replies:** 0\
**Last updated:** [March 12, 2025, 8:14pm UTC](https://discourse.slicer.org/t/calculating-sharpness-of-a-point/42097 "2025-03-12T20:14:28Z")

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Hello all! We were measuring some of the morphometrics of a stingray barb, something that we wanted to find was the sharpness of the tip of the barb, is there any module or plug in to help with this? Considering writing…

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## [Reset views orientation to default](https://discourse.slicer.org/t/reset-views-orientation-to-default/42088)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 0\
**Last updated:** [March 12, 2025, 12:02pm UTC](https://discourse.slicer.org/t/reset-views-orientation-to-default/42088 "2025-03-12T12:02:21Z")

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is there a quick way to reset views orientation to default in all views sagittla coronal axial at once , like one button or shortcut ? thanks

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## [Percentage of Manual Segmentations](https://discourse.slicer.org/t/percentage-of-manual-segmentations/42080)

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**Author:** [@MariaGraf](https://discourse.slicer.org/u/MariaGraf)\
**Replies:** 0\
**Last updated:** [March 12, 2025, 1:21am UTC](https://discourse.slicer.org/t/percentage-of-manual-segmentations/42080 "2025-03-12T01:21:28Z")

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Is there a way to get the percentage of manual segmentations with the “paint” or “draw” option in the Segment Editor Module after using the “fill between slices”? I’m working on a reliability study and the goal is to man…

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## [Totalsegmentator results look bricky](https://discourse.slicer.org/t/totalsegmentator-results-look-bricky/42075)

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**Author:** [@puck147](https://discourse.slicer.org/u/puck147)\
**Replies:** 1\
**Last updated:** [March 11, 2025, 5:27pm UTC](https://discourse.slicer.org/t/totalsegmentator-results-look-bricky/42075 "2025-03-11T17:27:05Z")

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I would like to use Totalsegmentator to automatically segment the aorta from a CT scan of a baby. However, the results look very bricky. How can I improve the quality and reduce the pixelsize? Slicer version: 5.8.0

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## [Flickering Issues on Ubuntu 24.04](https://discourse.slicer.org/t/flickering-issues-on-ubuntu-24-04/40678)

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**Author:** [@Kulizoop](https://discourse.slicer.org/u/Kulizoop)\
**Replies:** 5\
**Last updated:** [March 11, 2025, 2:12pm UTC](https://discourse.slicer.org/t/flickering-issues-on-ubuntu-24-04/40678 "2025-03-11T14:12:14Z")

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Dear Community, I upgraded from Ubuntu 22.04 to 24.04 and since then, Slicer is constantly flickering when using it. Does anybody else experience the same issues or knows where this might come from? I use 5.7 bu…

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## [Revisiting Rigid Mesh Registration](https://discourse.slicer.org/t/revisiting-rigid-mesh-registration/9424)

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**Author:** [@manjula](https://discourse.slicer.org/u/manjula)\
**Replies:** 20\
**Last updated:** [March 11, 2025, 12:48pm UTC](https://discourse.slicer.org/t/revisiting-rigid-mesh-registration/9424 "2025-03-11T12:48:46Z")

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I first posted the problem few months back and Prof: Lassoan help me with it. Now i have had time to read about this topic and play around I would like to have a better understanding of the problem as i am not 100% happy…

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## [Partial Surface Registration Tutorial](https://discourse.slicer.org/t/partial-surface-registration-tutorial/21118)

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**Author:** [@mau\_igna\_06](https://discourse.slicer.org/u/mau_igna_06)\
**Replies:** 5\
**Last updated:** [March 11, 2025, 12:42pm UTC](https://discourse.slicer.org/t/partial-surface-registration-tutorial/21118 "2025-03-11T12:42:24Z")

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Hi devs. I have made a tutorial for Partial Surface Registration, something similar to weight-painting ICP that is done in Blender. Here you can access it: If there are no suggestions for corrections I’ll later uploa…

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## [Help with Custom Slicer Build – Which Solution File (.sln) to Use in Visual Studio?](https://discourse.slicer.org/t/help-with-custom-slicer-build-which-solution-file-sln-to-use-in-visual-studio/42062)

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**Author:** [@software](https://discourse.slicer.org/u/software)\
**Replies:** 3\
**Last updated:** [March 11, 2025, 10:04am UTC](https://discourse.slicer.org/t/help-with-custom-slicer-build-which-solution-file-sln-to-use-in-visual-studio/42062 "2025-03-11T10:04:49Z")

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I have built a custom template of Kitware in Release mode using CMake GUI with the following directories: Source code: E:/Safe Binary build: E:/Safe/build After configuring and generating the project, the build was su…

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## [Unable to load landmark points from DICOM Surface Segmentation created by BrainLab Origin](https://discourse.slicer.org/t/unable-to-load-landmark-points-from-dicom-surface-segmentation-created-by-brainlab-origin/41971)

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**Author:** [@Arber\_Demi](https://discourse.slicer.org/u/Arber_Demi)\
**Replies:** 11\
**Last updated:** [March 11, 2025, 9:32am UTC](https://discourse.slicer.org/t/unable-to-load-landmark-points-from-dicom-surface-segmentation-created-by-brainlab-origin/41971 "2025-03-11T09:32:51Z")

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Hello everyone, I’m trying to load some DICOM segmentation file, similar to “Unable to load DICOM segmentation file”. I am running into the same issue of not being able to load these files. The files do have reference i…

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## [Sequence Registration - problem with menu](https://discourse.slicer.org/t/sequence-registration-problem-with-menu/41294)

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**Author:** [@eNable\_Polska](https://discourse.slicer.org/u/eNable_Polska)\
**Replies:** 5\
**Last updated:** [March 11, 2025, 1:09am UTC](https://discourse.slicer.org/t/sequence-registration-problem-with-menu/41294 "2025-03-11T01:09:55Z")

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Hello I came across a problem that I can’t solve. I have a sequential angioCT scan. I would like to make a 4D animation based on this scan. I found a tutorial https://youtu.be/qVgXdXEEVFU?si=ODlaC4UDf2wQ3bCW up to 0:56…

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## [Exporting markups data as a csv ](https://discourse.slicer.org/t/exporting-markups-data-as-a-csv/41849)

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**Author:** [@evergarden](https://discourse.slicer.org/u/evergarden)\
**Replies:** 6\
**Last updated:** [March 10, 2025, 6:30pm UTC](https://discourse.slicer.org/t/exporting-markups-data-as-a-csv/41849 "2025-03-10T18:30:52Z")

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I’m having issues exporting data as a csv, I created all the markups and nodes I wanted to collected and couldn’t seem to export any of the data as a csv successfully. I would often get csv’s with random numbers or incom…

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## [Extension Catalogue search improvements](https://discourse.slicer.org/t/extension-catalogue-search-improvements/42046)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 1\
**Last updated:** [March 10, 2025, 5:51am UTC](https://discourse.slicer.org/t/extension-catalogue-search-improvements/42046 "2025-03-10T05:51:16Z")

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During the discussions of a new extension, it become clear that extension catalogue naming conventions are too restrictive. For example, an extension name cannot have spaces, since the label name is also used for project…

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## [No selection in the Preset of Volume Rendering](https://discourse.slicer.org/t/no-selection-in-the-preset-of-volume-rendering/42038)

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**Author:** [@slicer365](https://discourse.slicer.org/u/slicer365)\
**Replies:** 1\
**Last updated:** [March 10, 2025, 1:00am UTC](https://discourse.slicer.org/t/no-selection-in-the-preset-of-volume-rendering/42038 "2025-03-10T01:00:32Z")

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Version: Windows Slicer 5.8.1

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## [Error after installing VMTK extension: "vtkvmtk module is not loaded"](https://discourse.slicer.org/t/error-after-installing-vmtk-extension-vtkvmtk-module-is-not-loaded/42008)

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**Author:** [@feiyu](https://discourse.slicer.org/u/feiyu)\
**Replies:** 9\
**Last updated:** [March 9, 2025, 3:54am UTC](https://discourse.slicer.org/t/error-after-installing-vmtk-extension-vtkvmtk-module-is-not-loaded/42008 "2025-03-09T03:54:20Z")

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I tried to use the VMTK extension for vessel segmentation, but I can’t find it in the Modules. However, I can see that the latest version of VMTK has been downloaded in the extension manager. Can anyone help me with this…

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## [Coronal view and the number of images that compose it](https://discourse.slicer.org/t/coronal-view-and-the-number-of-images-that-compose-it/42026)

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**Author:** [@Joel1424](https://discourse.slicer.org/u/Joel1424)\
**Replies:** 1\
**Last updated:** [March 8, 2025, 3:28pm UTC](https://discourse.slicer.org/t/coronal-view-and-the-number-of-images-that-compose-it/42026 "2025-03-08T15:28:12Z")

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How can you know the number of images that make up the coronal view?

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## [Slicer 5.8.0, why not change the segment name just in the place by double click without popup](https://discourse.slicer.org/t/slicer-5-8-0-why-not-change-the-segment-name-just-in-the-place-by-double-click-without-popup/41984)

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**Author:** [@hepato](https://discourse.slicer.org/u/hepato)\
**Replies:** 2\
**Last updated:** [March 8, 2025, 11:32am UTC](https://discourse.slicer.org/t/slicer-5-8-0-why-not-change-the-segment-name-just-in-the-place-by-double-click-without-popup/41984 "2025-03-08T11:32:01Z")

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## [CT and MRi fusion images for maxillofacial region ](https://discourse.slicer.org/t/ct-and-mri-fusion-images-for-maxillofacial-region/42028)

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**Author:** [@Subodh\_Sontakke](https://discourse.slicer.org/u/Subodh_Sontakke)\
**Replies:** 0\
**Last updated:** [March 8, 2025, 12:50am UTC](https://discourse.slicer.org/t/ct-and-mri-fusion-images-for-maxillofacial-region/42028 "2025-03-08T00:50:51Z")

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how this fusion images can be used in maxillofacial region and guide the process

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## [Pet/CT Scan DICOM files show "Reference image in series does not contain geometry information" error](https://discourse.slicer.org/t/pet-ct-scan-dicom-files-show-reference-image-in-series-does-not-contain-geometry-information-error/42027)

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**Author:** [@neutronstar](https://discourse.slicer.org/u/neutronstar)\
**Replies:** 1\
**Last updated:** [March 8, 2025, 12:50am UTC](https://discourse.slicer.org/t/pet-ct-scan-dicom-files-show-reference-image-in-series-does-not-contain-geometry-information-error/42027 "2025-03-08T00:50:39Z")

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Hi! I’m sorry I’m very new to 3d Slicer. I’m trying to 3d print one of my organs from my pet/ct scan. When I upload it to 3d slicer I can see the results, but I can’t see the 3d model. What should I do to fix this iss…

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## [Feedback on custom color table creation](https://discourse.slicer.org/t/feedback-on-custom-color-table-creation/41963)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 16\
**Last updated:** [March 7, 2025, 10:10pm UTC](https://discourse.slicer.org/t/feedback-on-custom-color-table-creation/41963 "2025-03-07T22:10:07Z")

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I am reviewing the newly integrated functionality. Everything seems to work well, but I think we need some clarification and some minor functionality tweak. When I am creating my own custom color table with terminologi…

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## [Segmentation disappearing](https://discourse.slicer.org/t/segmentation-disappearing/42020)

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**Author:** [@pboarantes](https://discourse.slicer.org/u/pboarantes)\
**Replies:** 1\
**Last updated:** [March 7, 2025, 7:45pm UTC](https://discourse.slicer.org/t/segmentation-disappearing/42020 "2025-03-07T19:45:57Z")

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Hello everyone, Today, while using 3D Slicer version 5.8.0, I utilized the TotalSegmentator to create a model. Despite it initially being visible, the entire segmentation suddenly disappeared from the 3D view as well as…

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## [Aortic Dissection Segmentation](https://discourse.slicer.org/t/aortic-dissection-segmentation/41999)

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**Author:** [@Akshay\_Bal](https://discourse.slicer.org/u/Akshay_Bal)\
**Replies:** 1\
**Last updated:** [March 7, 2025, 3:50pm UTC](https://discourse.slicer.org/t/aortic-dissection-segmentation/41999 "2025-03-07T15:50:34Z")

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Hello, I am new to the segmentation world, and want to see how well slicer could be used in acute settings for aortic dissections. I was wondering what is the best way to show the false lumen/true lumen. For example, my…

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## [How to save the image after add DICOM attribute](https://discourse.slicer.org/t/how-to-save-the-image-after-add-dicom-attribute/42009)

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**Author:** [@akmal871026](https://discourse.slicer.org/u/akmal871026)\
**Replies:** 1\
**Last updated:** [March 7, 2025, 3:45pm UTC](https://discourse.slicer.org/t/how-to-save-the-image-after-add-dicom-attribute/42009 "2025-03-07T15:45:49Z")

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Dear all, I was add some DICOM attribute in my image as picture attached. Do you know how to save it in image. Because when I try export image, then I open again, all the DICOM attribute was lost. Thank you.

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## [Help with alignment of Frankfurt Plane](https://discourse.slicer.org/t/help-with-alignment-of-frankfurt-plane/42013)

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**Author:** [@elijahlee](https://discourse.slicer.org/u/elijahlee)\
**Replies:** 0\
**Last updated:** [March 7, 2025, 9:24am UTC](https://discourse.slicer.org/t/help-with-alignment-of-frankfurt-plane/42013 "2025-03-07T09:24:02Z")

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Hello, everyone. I’m afraid I’m new to 3D Slicer and Python. I am currently working on analyzing sexual dimorphism using laser scanned STL format models without DICOM data. Before operating morphological analysis, I fo…

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## [Lost Segmentation from Computer Update](https://discourse.slicer.org/t/lost-segmentation-from-computer-update/42001)

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**Author:** [@amelia.eastham](https://discourse.slicer.org/u/amelia.eastham)\
**Replies:** 3\
**Last updated:** [March 7, 2025, 4:01am UTC](https://discourse.slicer.org/t/lost-segmentation-from-computer-update/42001 "2025-03-07T04:01:50Z")

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Hi everyone, After my computer installed a software update last night, I opened 3D Slicer this morning and found that none of my segmentation data had been saved. This data represents weeks of work, so I’m hoping there’…

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## [Threshold disappearing after clicking apply.](https://discourse.slicer.org/t/threshold-disappearing-after-clicking-apply/42003)

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**Author:** [@Victoria\_Effanga](https://discourse.slicer.org/u/Victoria_Effanga)\
**Replies:** 1\
**Last updated:** [March 7, 2025, 3:52am UTC](https://discourse.slicer.org/t/threshold-disappearing-after-clicking-apply/42003 "2025-03-07T03:52:15Z")

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How can I fix the issue where my threshold disappears after applying it in version 5.8.0?

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## [Automatic or semi-automatic tools on 3D Slicer for Head and Neck CT images, especially for larynx or segmenting laryngeal cartilages. ](https://discourse.slicer.org/t/automatic-or-semi-automatic-tools-on-3d-slicer-for-head-and-neck-ct-images-especially-for-larynx-or-segmenting-laryngeal-cartilages/41998)

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**Author:** [@drnivearoy](https://discourse.slicer.org/u/drnivearoy)\
**Replies:** 0\
**Last updated:** [March 7, 2025, 3:41am UTC](https://discourse.slicer.org/t/automatic-or-semi-automatic-tools-on-3d-slicer-for-head-and-neck-ct-images-especially-for-larynx-or-segmenting-laryngeal-cartilages/41998 "2025-03-07T03:41:57Z")

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Hi, I want to know if there is any automatic or semi-automatic tool available on 3D Slicer for Head and Neck CT images, especially for larynx or segmenting laryngeal cartilages. Thank you.

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## [Guidance on Bone and Bone Marrow Segmentation in CT Images](https://discourse.slicer.org/t/guidance-on-bone-and-bone-marrow-segmentation-in-ct-images/41997)

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**Author:** [@GuilleCC103](https://discourse.slicer.org/u/GuilleCC103)\
**Replies:** 0\
**Last updated:** [March 7, 2025, 3:41am UTC](https://discourse.slicer.org/t/guidance-on-bone-and-bone-marrow-segmentation-in-ct-images/41997 "2025-03-07T03:41:46Z")

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Hello, I am working on segmenting bone marrow from CT images and I am interested in using TotalSegmentator for this task. Ideally, I would like to find a model for bone marrow segmentation. However, if there is no speci…

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