# Support

**URL:** https://discourse.slicer.org/c/support/11.md?no_subcategories=false&page=80

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

**Page:** 81

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## [Exporting Curvature Data](https://discourse.slicer.org/t/exporting-curvature-data/23181)

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**Author:** [@heiko](https://discourse.slicer.org/u/heiko)\
**Replies:** 24\
**Last updated:** [August 6, 2024, 6:03am UTC](https://discourse.slicer.org/t/exporting-curvature-data/23181 "2024-08-06T06:03:47Z")

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Hello everyone, I am using the Slicer VMTK extension in order to extract centerlines from a vascular tree. In addition to radius, I would also like to have the curvature at every point of the centerline (like I would ge…

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## [Dynamic Modeler - unable to get tools to display](https://discourse.slicer.org/t/dynamic-modeler-unable-to-get-tools-to-display/37718)

<div class="topic-metadata">

**Author:** [@cepehde](https://discourse.slicer.org/u/cepehde)\
**Replies:** 2\
**Last updated:** [August 6, 2024, 3:38am UTC](https://discourse.slicer.org/t/dynamic-modeler-unable-to-get-tools-to-display/37718 "2024-08-06T03:38:55Z")

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Operating system: Windows Slicer version: 5.6.2 Expected behavior: Utilize Dynamic Modeler Actual behavior: No Input Node Available. I think I must be missing something very basic. I am unable to use Dynamic Model…

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## [Seek advice on merge surfaces](https://discourse.slicer.org/t/seek-advice-on-merge-surfaces/37682)

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**Author:** [@Lulu](https://discourse.slicer.org/u/Lulu)\
**Replies:** 6\
**Last updated:** [August 6, 2024, 2:13am UTC](https://discourse.slicer.org/t/seek-advice-on-merge-surfaces/37682 "2024-08-06T02:13:02Z")

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I’m working on a project to reconstruct the surface of the bronchi. My idea is to generate tubes to compensate for the end loss of the model after smoothing. I generated tubes of different sizes through the centerline.…

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## [Low resolution when importing an STL segmentation](https://discourse.slicer.org/t/low-resolution-when-importing-an-stl-segmentation/37715)

<div class="topic-metadata">

**Author:** [@ludoludo](https://discourse.slicer.org/u/ludoludo)\
**Replies:** 1\
**Last updated:** [August 5, 2024, 8:45pm UTC](https://discourse.slicer.org/t/low-resolution-when-importing-an-stl-segmentation/37715 "2024-08-05T20:45:02Z")

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Hey! I have a Nifti volume with the following dimensions: 588 x 734 x 1095, with an isometric resolution of 0.033 mm. I’ve got an STL (or OBJ) file that represents a segmentation I’ve already made. I’d like to convert…

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## [How can i draw tube?](https://discourse.slicer.org/t/how-can-i-draw-tube/37712)

<div class="topic-metadata">

**Author:** [@dental](https://discourse.slicer.org/u/dental)\
**Replies:** 1\
**Last updated:** [August 5, 2024, 8:34pm UTC](https://discourse.slicer.org/t/how-can-i-draw-tube/37712 "2024-08-05T20:34:03Z")

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‘Place a control point’ button is not active, so i couldnt draw tube. How can i fix it?

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## [Loading a PNG Image to the view mode of 3D slicer](https://discourse.slicer.org/t/loading-a-png-image-to-the-view-mode-of-3d-slicer/37702)

<div class="topic-metadata">

**Author:** [@Basel04](https://discourse.slicer.org/u/Basel04)\
**Replies:** 0\
**Last updated:** [August 5, 2024, 1:13pm UTC](https://discourse.slicer.org/t/loading-a-png-image-to-the-view-mode-of-3d-slicer/37702 "2024-08-05T13:13:44Z")

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Is there anyway to add a png image to CBCT? So i can visualize the png image at the corne r of the viewer as here in the screenshot.

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## [TotalSegmentator Issues](https://discourse.slicer.org/t/totalsegmentator-issues/37641)

<div class="topic-metadata">

**Author:** [@arflores](https://discourse.slicer.org/u/arflores)\
**Replies:** 2\
**Last updated:** [August 5, 2024, 10:07am UTC](https://discourse.slicer.org/t/totalsegmentator-issues/37641 "2024-08-05T10:07:08Z")

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Hello, I am new to TotalSegmentator. I am trying to use it to autosegment vertebral bodies on CTs. I am using an iMac with Radeon Pro 5500 XT 8GB GDDR6 memory (not sure if this is compatible/usable?). I am using Slicer…

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## [Multi-GPU inference with MONAILabel](https://discourse.slicer.org/t/multi-gpu-inference-with-monailabel/37650)

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**Author:** [@xiang\_yao](https://discourse.slicer.org/u/xiang_yao)\
**Replies:** 3\
**Last updated:** [August 5, 2024, 10:03am UTC](https://discourse.slicer.org/t/multi-gpu-inference-with-monailabel/37650 "2024-08-05T10:03:40Z")

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May I ask if multi GPUs inference can be used in Windows or Linux systems? Currently, due to data size issues, it is evident that monailabel infers data in memory, i.e. CPU, without utilizing CUDA acceleration. If I hav…

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## [Slicer Looking Glass extension unavailable in Slicer 5.7 revision 32785](https://discourse.slicer.org/t/slicer-looking-glass-extension-unavailable-in-slicer-5-7-revision-32785/35145)

<div class="topic-metadata">

**Author:** [@karthik\_vandy](https://discourse.slicer.org/u/karthik_vandy)\
**Replies:** 5\
**Last updated:** [August 4, 2024, 7:14pm UTC](https://discourse.slicer.org/t/slicer-looking-glass-extension-unavailable-in-slicer-5-7-revision-32785/35145 "2024-08-04T19:14:58Z")

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We were looking to use the SlicerLookingGlass extension on Slicer3D but couldn’t find it in the extension manager. I have tried different keywords for search including “SlicerLookingGlass, Looking glass, Lookingglass, lo…

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## [How to do Ray Tracing in 3D images, such as CT images?](https://discourse.slicer.org/t/how-to-do-ray-tracing-in-3d-images-such-as-ct-images/7493)

<div class="topic-metadata">

**Author:** [@shahrokh](https://discourse.slicer.org/u/shahrokh)\
**Replies:** 4\
**Last updated:** [August 4, 2024, 12:02pm UTC](https://discourse.slicer.org/t/how-to-do-ray-tracing-in-3d-images-such-as-ct-images/7493 "2024-08-04T12:02:14Z")

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Hi Dear 3DSlicer developers I want to calculate the length of any ray that propagates from a point source and passes through the CT voxels. In other words, I want to calculate the length of each ray along its path throu…

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## [Export 3d model to Hololens 2 device](https://discourse.slicer.org/t/export-3d-model-to-hololens-2-device/27259)

<div class="topic-metadata">

**Author:** [@Caterina](https://discourse.slicer.org/u/Caterina)\
**Replies:** 5\
**Last updated:** [August 3, 2024, 9:53pm UTC](https://discourse.slicer.org/t/export-3d-model-to-hololens-2-device/27259 "2024-08-03T21:53:41Z")

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Good morning, I need to export a 3d model from Slicer to the Hololens 2 device (MRTK 2.8.3). I performed segmentation on 3d slicer (Segment Editor) and I used OpenAnatomy module to export the segmentation part as gltf. …

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## [I want to know how to colour the exported models](https://discourse.slicer.org/t/i-want-to-know-how-to-colour-the-exported-models/24476)

<div class="topic-metadata">

**Author:** [@Luckypig](https://discourse.slicer.org/u/Luckypig)\
**Replies:** 21\
**Last updated:** [August 3, 2024, 5:25pm UTC](https://discourse.slicer.org/t/i-want-to-know-how-to-colour-the-exported-models/24476 "2024-08-03T17:25:57Z")

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Hello everyone, I find that the exported models have no color（STL format）.How can I make exported models have colors,because I find many people can make colorful models. Thanks to you all.

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## [Segment Editor not working](https://discourse.slicer.org/t/segment-editor-not-working/37677)

<div class="topic-metadata">

**Author:** [@Arash1](https://discourse.slicer.org/u/Arash1)\
**Replies:** 1\
**Last updated:** [August 2, 2024, 9:57pm UTC](https://discourse.slicer.org/t/segment-editor-not-working/37677 "2024-08-02T21:57:30Z")

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Hi all I hope everyone is doing great. I have a question. I have an issue with the “segment editor”. The segment editor module is empty, and there is nothing to add. Does anyone know what it might be? Best, Arash

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## [Totalsegmentator Brain Structures segmentation task not listed](https://discourse.slicer.org/t/totalsegmentator-brain-structures-segmentation-task-not-listed/37673)

<div class="topic-metadata">

**Author:** [@Just1n](https://discourse.slicer.org/u/Just1n)\
**Replies:** 0\
**Last updated:** [August 2, 2024, 6:35pm UTC](https://discourse.slicer.org/t/totalsegmentator-brain-structures-segmentation-task-not-listed/37673 "2024-08-02T18:35:10Z")

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Hi, I am unable to find Totalsegmentator’s segmentation task for brain structures. I have the license key for brain structures which I have activated in 3D slicer but cannot find the task listed in the drop-down menu. T…

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## [Usage of Ctcreate (DOSXYZnrc) on 3D slicer](https://discourse.slicer.org/t/usage-of-ctcreate-dosxyznrc-on-3d-slicer/37649)

<div class="topic-metadata">

**Author:** [@yassir\_elghazi](https://discourse.slicer.org/u/yassir_elghazi)\
**Replies:** 1\
**Last updated:** [August 2, 2024, 1:12pm UTC](https://discourse.slicer.org/t/usage-of-ctcreate-dosxyznrc-on-3d-slicer/37649 "2024-08-02T13:12:17Z")

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Hello Scientists, I have just imported the DICOM Folder of a patient, where it contains the DICOM images and RT structures and also doses distribution. it is a complet study exported from TPS. when i import it to the 3D…

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## [Hide a volume programmatically](https://discourse.slicer.org/t/hide-a-volume-programmatically/26654)

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**Author:** [@rhodesdante](https://discourse.slicer.org/u/rhodesdante)\
**Replies:** 9\
**Last updated:** [August 2, 2024, 1:03pm UTC](https://discourse.slicer.org/t/hide-a-volume-programmatically/26654 "2024-08-02T13:03:57Z")

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I am writing a custom module in Python and I would like to: Replace the active volume in the slice viewer (similar to clicking on the “eye” icon of a different volume) with the next volume in the subject hierarchy Shut…

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## [Adding a new color table to Colors, permanently](https://discourse.slicer.org/t/adding-a-new-color-table-to-colors-permanently/37558)

<div class="topic-metadata">

**Author:** [@phcerdan](https://discourse.slicer.org/u/phcerdan)\
**Replies:** 1\
**Last updated:** [August 2, 2024, 12:33pm UTC](https://discourse.slicer.org/t/adding-a-new-color-table-to-colors-permanently/37558 "2024-08-02T12:33:01Z")

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I want to add a custom color table to Slicer, and store it permanently, so I can open Volumes (Label Maps) with it. Right now I am loading it on startup using ~/.slicerrc.py, but I wonder if there is an alternative way? …

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## [Segmentation operation failed: Minimum 2 visible segments (or specification of editable area or intensity range)](https://discourse.slicer.org/t/segmentation-operation-failed-minimum-2-visible-segments-or-specification-of-editable-area-or-intensity-range/35547)

<div class="topic-metadata">

**Author:** [@Basel04](https://discourse.slicer.org/u/Basel04)\
**Replies:** 3\
**Last updated:** [August 2, 2024, 10:11am UTC](https://discourse.slicer.org/t/segmentation-operation-failed-minimum-2-visible-segments-or-specification-of-editable-area-or-intensity-range/35547 "2024-08-02T10:11:27Z")

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Hello, I am currently experiencing an issue while performing object segmentation using the latest version of 3D Slicer. Occasionally, I encounter the following error message: “Segmentation operation failed: Minimum 2 vi…

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## [How can Slicer be configured to cooperate with institutions that enforces SSL bumping and use self-signed certificates at the Firewall?](https://discourse.slicer.org/t/how-can-slicer-be-configured-to-cooperate-with-institutions-that-enforces-ssl-bumping-and-use-self-signed-certificates-at-the-firewall/37566)

<div class="topic-metadata">

**Author:** [@TL00104](https://discourse.slicer.org/u/TL00104)\
**Replies:** 4\
**Last updated:** [August 2, 2024, 10:10am UTC](https://discourse.slicer.org/t/how-can-slicer-be-configured-to-cooperate-with-institutions-that-enforces-ssl-bumping-and-use-self-signed-certificates-at-the-firewall/37566 "2024-08-02T10:10:03Z")

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How can Slicer be configured to cooperate with institutions that enforces SSL bumping and use self-signed certificates at the Firewall?

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## [Most Efficient Way of Creating a Thickness Map](https://discourse.slicer.org/t/most-efficient-way-of-creating-a-thickness-map/18203)

<div class="topic-metadata">

**Author:** [@Fluvio\_Lobo](https://discourse.slicer.org/u/Fluvio_Lobo)\
**Replies:** 8\
**Last updated:** [August 1, 2024, 4:21pm UTC](https://discourse.slicer.org/t/most-efficient-way-of-creating-a-thickness-map/18203 "2024-08-01T16:21:53Z")

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Hello, I have been working on various CMF workflows recently and, in most, our team wants to be capable of generating a thickness map. My current approach is very simple; Segment the bony tissue Hollow the segment Cr…

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## [TotalSegmentator error at first run: Command ...Python\\Scripts\\TotalSegmentator... returned non-zero exit status 120](https://discourse.slicer.org/t/totalsegmentator-error-at-first-run-command-python-scripts-totalsegmentator-returned-non-zero-exit-status-120/26755)

<div class="topic-metadata">

**Author:** [@Augusto](https://discourse.slicer.org/u/Augusto)\
**Replies:** 28\
**Last updated:** [August 1, 2024, 7:43am UTC](https://discourse.slicer.org/t/totalsegmentator-error-at-first-run-command-python-scripts-totalsegmentator-returned-non-zero-exit-status-120/26755 "2024-08-01T07:43:57Z")

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In line with this error, i get a similar one and don’t know why: Traceback (most recent call last): File “C:\\Users\\Augusto\\AppData\\Local\\NA-MIC\\Slicer 5.2.1\\bin\\Python\\slicer\\util.py”, line 2961, in tryWithErrorDisplay …

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## [MonaiLabel CUDA out of memory with Bundle](https://discourse.slicer.org/t/monailabel-cuda-out-of-memory-with-bundle/29914)

<div class="topic-metadata">

**Author:** [@FloCo](https://discourse.slicer.org/u/FloCo)\
**Replies:** 15\
**Last updated:** [August 1, 2024, 4:52am UTC](https://discourse.slicer.org/t/monailabel-cuda-out-of-memory-with-bundle/29914 "2024-08-01T04:52:49Z")

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Hello everyone, I am working with Slicer to do machine learning using MonaiLabel, the annotation and learning part work perfectly, it’s really nice tool ! Unfortunately I have troubles when I run the automatic segmenta…

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## [WIndows 10 is now handling the gpu selection](https://discourse.slicer.org/t/windows-10-is-now-handling-the-gpu-selection/13064)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 6\
**Last updated:** [August 19, 2020, 5:06am UTC](https://discourse.slicer.org/t/windows-10-is-now-handling-the-gpu-selection/13064 "2020-08-19T05:06:00Z")

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During the workshop presentation for SlicerMorph I encountered lots of Nvidia driver crashes (unrelated to Slicer). Going through the settings in my laptop, which has dual GPUs (intel + Geforce), I just noticed this mess…

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## [Mirrored CT Scan and 3D Model Issue in Fossil Segmentation](https://discourse.slicer.org/t/mirrored-ct-scan-and-3d-model-issue-in-fossil-segmentation/37619)

<div class="topic-metadata">

**Author:** [@JaredAmudeo](https://discourse.slicer.org/u/JaredAmudeo)\
**Replies:** 8\
**Last updated:** [August 1, 2024, 12:22am UTC](https://discourse.slicer.org/t/mirrored-ct-scan-and-3d-model-issue-in-fossil-segmentation/37619 "2024-08-01T00:22:45Z")

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I have been working on the segmentation of a fossil for a while, and now that I have finished segmenting the entire body, I have realized by comparing images of the fossil and the images obtained from the medical scanner…

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## [Segmenting vasculature on MRI scans (non MRA)](https://discourse.slicer.org/t/segmenting-vasculature-on-mri-scans-non-mra/37498)

<div class="topic-metadata">

**Author:** [@BDhoth](https://discourse.slicer.org/u/BDhoth)\
**Replies:** 5\
**Last updated:** [July 31, 2024, 2:49pm UTC](https://discourse.slicer.org/t/segmenting-vasculature-on-mri-scans-non-mra/37498 "2024-07-31T14:49:26Z")

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What is the best way to segment out vasculature on MRI scans? Normally a post T1 is provided.

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## [DentalSegmentator failed to load the segmentation](https://discourse.slicer.org/t/dentalsegmentator-failed-to-load-the-segmentation/36665)

<div class="topic-metadata">

**Author:** [@karim\_mamdouh](https://discourse.slicer.org/u/karim_mamdouh)\
**Replies:** 3\
**Last updated:** [July 31, 2024, 2:08pm UTC](https://discourse.slicer.org/t/dentalsegmentator-failed-to-load-the-segmentation/36665 "2024-07-31T14:08:06Z")

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Failed to load the segmentation. Check the inference folder content C:\\Users\\Khateeb\\AppData\\Local\\Temp\\Slicer-iPdxkt\\output Operating system: windous 10 Slicer version:5.7 latest Expected behavior:dentatl segmentato…

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## [How to convert a png file to nrrd file?](https://discourse.slicer.org/t/how-to-convert-a-png-file-to-nrrd-file/37631)

<div class="topic-metadata">

**Author:** [@ebin1234](https://discourse.slicer.org/u/ebin1234)\
**Replies:** 0\
**Last updated:** [July 31, 2024, 10:38am UTC](https://discourse.slicer.org/t/how-to-convert-a-png-file-to-nrrd-file/37631 "2024-07-31T10:38:05Z")

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Hello, I have a doubt regarding about the conversion of png file to nrrd file. Because I have to plot intensity based histogram for the 2d image. Is it possible to convert the image using 3d slicer ?.

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## [DICOM file cannot be read](https://discourse.slicer.org/t/dicom-file-cannot-be-read/37624)

<div class="topic-metadata">

**Author:** [@AWEN](https://discourse.slicer.org/u/AWEN)\
**Replies:** 1\
**Last updated:** [July 30, 2024, 1:34pm UTC](https://discourse.slicer.org/t/dicom-file-cannot-be-read/37624 "2024-07-30T13:34:38Z")

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I tried processing the slice with segmentation and updated the original slice to release a new DICOM file, but the updated file cannot be read and shown: "Slicer has caught an application error, please save your work an…

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## [Lung CT Analyzer now supports lung lobes and emphysema statistics](https://discourse.slicer.org/t/lung-ct-analyzer-now-supports-lung-lobes-and-emphysema-statistics/26793)

<div class="topic-metadata">

**Author:** [@rbumm](https://discourse.slicer.org/u/rbumm)\
**Replies:** 5\
**Last updated:** [July 30, 2024, 9:40am UTC](https://discourse.slicer.org/t/lung-ct-analyzer-now-supports-lung-lobes-and-emphysema-statistics/26793 "2024-07-30T09:40:54Z")

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Lung lobe segmentation has recently become a 2-minute process with Lung CT Segmenter calls of the TotalSegmentator AI extension. Consequently, Lung CT Analyzer 2.62 now includes lung lobe analysis of pulmonary infiltra…

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## [Get Segment Node contour by DRR metrix](https://discourse.slicer.org/t/get-segment-node-contour-by-drr-metrix/37604)

<div class="topic-metadata">

**Author:** [@fqzhice](https://discourse.slicer.org/u/fqzhice)\
**Replies:** 5\
**Last updated:** [July 30, 2024, 5:30am UTC](https://discourse.slicer.org/t/get-segment-node-contour-by-drr-metrix/37604 "2024-07-30T05:30:44Z")

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I segment bone and vessel, then run DRR registration and get matrix. Later I just want get bone contour in DRR projected plane and chagned it by manually, such as mouse move, rotation, how can i do this?

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