# Support

**URL:** https://discourse.slicer.org/c/support/11.md?no_subcategories=false&page=52

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

**Page:** 53

---

## [Get volume being shown in qMRMLThreeDView or vtkMRMLViewNode from Python](https://discourse.slicer.org/t/get-volume-being-shown-in-qmrmlthreedview-or-vtkmrmlviewnode-from-python/22655)

<div class="topic-metadata">

**Author:** [@marcosrdac](https://discourse.slicer.org/u/marcosrdac)\
**Replies:** 6\
**Last updated:** [February 13, 2025, 2:20pm UTC](https://discourse.slicer.org/t/get-volume-being-shown-in-qmrmlthreedview-or-vtkmrmlviewnode-from-python/22655 "2025-02-13T14:20:32Z")

</div>

Supose I see a volume in a 3D view. Once I have that view instance in hands, how can I know which volume is being shown there? (instance = qMRMLThreeDView or vtkMRMLViewNode) Thank you very much!

---

## [Slicer vmtk centerline network model in coronary artery](https://discourse.slicer.org/t/slicer-vmtk-centerline-network-model-in-coronary-artery/41619)

<div class="topic-metadata">

**Author:** [@yoonjh119](https://discourse.slicer.org/u/yoonjh119)\
**Replies:** 2\
**Last updated:** [February 13, 2025, 11:35am UTC](https://discourse.slicer.org/t/slicer-vmtk-centerline-network-model-in-coronary-artery/41619 "2025-02-13T11:35:39Z")

</div>

I am extracting the centerline through a network model based on coronary artery segmentation including the aorta. When extracting the centerline, the centerline of the aorta-LM connection (red arrow) often deviates from …

---

## [4D Flow MRI problem of wave form](https://discourse.slicer.org/t/4d-flow-mri-problem-of-wave-form/38001)

<div class="topic-metadata">

**Author:** [@mnst47](https://discourse.slicer.org/u/mnst47)\
**Replies:** 3\
**Last updated:** [February 13, 2025, 9:29am UTC](https://discourse.slicer.org/t/4d-flow-mri-problem-of-wave-form/38001 "2025-02-13T09:29:10Z")

</div>

Hi all I am working with dicom file of 4d flow mri. I have wrote my code in matlab to segment finds direction of blood vessel and then calculate the blood velocity for every cross section in every cardiac cycle. the odd…

---

## [RuntimeError: No valid DICOM-NRRD pairs found in the directories](https://discourse.slicer.org/t/runtimeerror-no-valid-dicom-nrrd-pairs-found-in-the-directories/41644)

<div class="topic-metadata">

**Author:** [@kwonheokju](https://discourse.slicer.org/u/kwonheokju)\
**Replies:** 2\
**Last updated:** [February 13, 2025, 4:47am UTC](https://discourse.slicer.org/t/runtimeerror-no-valid-dicom-nrrd-pairs-found-in-the-directories/41644 "2025-02-13T04:47:55Z")

</div>

Hi, I’m trying to do machine learning using raw data in dicom format and mask data in nrrd format. However, the number of dicom files and the number of slices of nrd are not the same. When I open dicom and nrrd togethe…

---

## [How to make a model available in CLI Python modules](https://discourse.slicer.org/t/how-to-make-a-model-available-in-cli-python-modules/41662)

<div class="topic-metadata">

**Author:** [@modenaxe](https://discourse.slicer.org/u/modenaxe)\
**Replies:** 2\
**Last updated:** [February 13, 2025, 4:45am UTC](https://discourse.slicer.org/t/how-to-make-a-model-available-in-cli-python-modules/41662 "2025-02-13T04:45:09Z")

</div>

Hello, I am writing a CLI module and would like to have a model as an input to then use it as vtkPolyData. I have checked the provided example and inspected some of the C++ modules taking a model as input, for example M…

---

## [Can we CT scan any other object apart from human body and convert it into stl](https://discourse.slicer.org/t/can-we-ct-scan-any-other-object-apart-from-human-body-and-convert-it-into-stl/41666)

<div class="topic-metadata">

**Author:** [@Akshata\_Shah](https://discourse.slicer.org/u/Akshata_Shah)\
**Replies:** 1\
**Last updated:** [February 13, 2025, 4:12am UTC](https://discourse.slicer.org/t/can-we-ct-scan-any-other-object-apart-from-human-body-and-convert-it-into-stl/41666 "2025-02-13T04:12:56Z")

</div>

Can we convert an object scan from dicom to stl. How does the volume generation happen and what are the threshold parameters be set for the same

---

## [STL files overlapping](https://discourse.slicer.org/t/stl-files-overlapping/41653)

<div class="topic-metadata">

**Author:** [@Swarna\_Yerebairapura](https://discourse.slicer.org/u/Swarna_Yerebairapura)\
**Replies:** 1\
**Last updated:** [February 13, 2025, 4:10am UTC](https://discourse.slicer.org/t/stl-files-overlapping/41653 "2025-02-13T04:10:24Z")

</div>

Hi, I am unable to overlap two STL files of mandibular canal despite of using Transform module. Is there any alternative feature? Please advise.

---

## [Segment comparison: how to interpret true negatives? Precision and recall](https://discourse.slicer.org/t/segment-comparison-how-to-interpret-true-negatives-precision-and-recall/41588)

<div class="topic-metadata">

**Author:** [@Bernard\_Victor](https://discourse.slicer.org/u/Bernard_Victor)\
**Replies:** 4\
**Last updated:** [February 12, 2025, 6:43pm UTC](https://discourse.slicer.org/t/segment-comparison-how-to-interpret-true-negatives-precision-and-recall/41588 "2025-02-12T18:43:18Z")

</div>

Operating system: MacOS 15.3 Slicer version: 5.8.0 Hello, I’m new to 3DSlicer. I’d like to understand how to interpret true negatives in the ‘Segment comparison’ module. I compare the very close segmentation of a nerv…

---

## [Viewing DICOM RT Structure sets created in Slicer](https://discourse.slicer.org/t/viewing-dicom-rt-structure-sets-created-in-slicer/41649)

<div class="topic-metadata">

**Author:** [@evieyeo](https://discourse.slicer.org/u/evieyeo)\
**Replies:** 1\
**Last updated:** [February 12, 2025, 2:55pm UTC](https://discourse.slicer.org/t/viewing-dicom-rt-structure-sets-created-in-slicer/41649 "2025-02-12T14:55:20Z")

</div>

Hi Slicer friends, I am having issues working with DICOM RT Structure sets that I have created in Slicer. I am able to open them fine in Slicer, however when I use an online dicom viewer such as https://dicomviewer.net/ …

---

## [Automatic segmentation of vertebrae and Intervertebral Discs](https://discourse.slicer.org/t/automatic-segmentation-of-vertebrae-and-intervertebral-discs/41648)

<div class="topic-metadata">

**Author:** [@Caterina](https://discourse.slicer.org/u/Caterina)\
**Replies:** 0\
**Last updated:** [February 12, 2025, 2:40pm UTC](https://discourse.slicer.org/t/automatic-segmentation-of-vertebrae-and-intervertebral-discs/41648 "2025-02-12T14:40:32Z")

</div>

Dear support, can I have suggestion on the most accurate procedure to Automatic segment vertebrae and Intervertebral Discs? Thanks

---

## [How to solve Pytorch version error in TotalSegmentator using CPU?](https://discourse.slicer.org/t/how-to-solve-pytorch-version-error-in-totalsegmentator-using-cpu/36269)

<div class="topic-metadata">

**Author:** [@Saulo](https://discourse.slicer.org/u/Saulo)\
**Replies:** 5\
**Last updated:** [February 12, 2025, 1:26pm UTC](https://discourse.slicer.org/t/how-to-solve-pytorch-version-error-in-totalsegmentator-using-cpu/36269 "2025-02-12T13:26:36Z")

</div>

I installed Slicer 5.6.2 on my MACBOOK 13-inch, 2019. I installed TOTAL SEGMENTATION and MONAIauto3DSeg to try to do reconstructions, but when starting with totalsegmentation the following message appears “Application i…

---

## [GPU not detected Total Segmentation](https://discourse.slicer.org/t/gpu-not-detected-total-segmentation/41611)

<div class="topic-metadata">

**Author:** [@Caterina](https://discourse.slicer.org/u/Caterina)\
**Replies:** 3\
**Last updated:** [February 12, 2025, 4:18am UTC](https://discourse.slicer.org/t/gpu-not-detected-total-segmentation/41611 "2025-02-12T04:18:06Z")

</div>

Dear support, I’m using TotalSegmentator on a desktop pc with the following hardware features: Processore: 3,2 GHz Intel Xeon W 16 core Scheda video: AMD Radeon Pro Vega II 32 GB Ram: 384 GB 2933 MHz DDR4 Mac OS: S…

---

## [No extensions for preview in Linux](https://discourse.slicer.org/t/no-extensions-for-preview-in-linux/41632)

<div class="topic-metadata">

**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 1\
**Last updated:** [February 11, 2025, 10:14pm UTC](https://discourse.slicer.org/t/no-extensions-for-preview-in-linux/41632 "2025-02-11T22:14:00Z")

</div>

cdash is empty for Linux extensions, though it appears that metroplex build is completed. @Sam\_Horvath @jcfr

---

## [Build Slicer with the system Python](https://discourse.slicer.org/t/build-slicer-with-the-system-python/41633)

<div class="topic-metadata">

**Author:** [@martin-g](https://discourse.slicer.org/u/martin-g)\
**Replies:** 0\
**Last updated:** [February 11, 2025, 3:58pm UTC](https://discourse.slicer.org/t/build-slicer-with-the-system-python/41633 "2025-02-11T15:58:39Z")

</div>

Hi, I am trying to build Slicer and I want to use as many -DSlicer\_USE\_SYSTEM\_\*\*\*=1 as possible. I provide all the dependencies with conda. My conda environment is activated and there I have Python 3.13.1 installed, t…

---

## [Multi-phase segmentation of a rock core](https://discourse.slicer.org/t/multi-phase-segmentation-of-a-rock-core/41620)

<div class="topic-metadata">

**Author:** [@jddorellanao](https://discourse.slicer.org/u/jddorellanao)\
**Replies:** 1\
**Last updated:** [February 11, 2025, 2:17pm UTC](https://discourse.slicer.org/t/multi-phase-segmentation-of-a-rock-core/41620 "2025-02-11T14:17:33Z")

</div>

I am currently working with microCT images of rocks, more specifically cores (like the following image) Since the acquisition is done by the lab operator, the images he gives me have some problems When the CT was …

---

## [Problem with measuring tool](https://discourse.slicer.org/t/problem-with-measuring-tool/41594)

<div class="topic-metadata">

**Author:** [@Bernard\_Victor](https://discourse.slicer.org/u/Bernard_Victor)\
**Replies:** 2\
**Last updated:** [February 11, 2025, 11:55am UTC](https://discourse.slicer.org/t/problem-with-measuring-tool/41594 "2025-02-11T11:55:50Z")

</div>

Operating system: MacOS 15.3 Slicer version: 5.8.0 Hello again, The measuring tool gives me 192 mm when it should be 10 mm (on the right of my screen shot. For the record, Horos gives me the same 192 size in pixel…

---

## [Use python to turn on visibility for model to model distance scalars and color bars](https://discourse.slicer.org/t/use-python-to-turn-on-visibility-for-model-to-model-distance-scalars-and-color-bars/41295)

<div class="topic-metadata">

**Author:** [@evaherbst](https://discourse.slicer.org/u/evaherbst)\
**Replies:** 2\
**Last updated:** [February 11, 2025, 9:34am UTC](https://discourse.slicer.org/t/use-python-to-turn-on-visibility-for-model-to-model-distance-scalars-and-color-bars/41295 "2025-02-11T09:34:52Z")

</div>

Hello, I am called the ModeltoModel distance module in Slicer with Python to batch run the distance calculations of several pairs of models. Is there a way in Python automatically turn on visibility of the scalars from…

---

## [Exporting markups to LPS table and saving to text file?](https://discourse.slicer.org/t/exporting-markups-to-lps-table-and-saving-to-text-file/41340)

<div class="topic-metadata">

**Author:** [@evaherbst](https://discourse.slicer.org/u/evaherbst)\
**Replies:** 4\
**Last updated:** [February 11, 2025, 9:34am UTC](https://discourse.slicer.org/t/exporting-markups-to-lps-table-and-saving-to-text-file/41340 "2025-02-11T09:34:35Z")

</div>

Hello, Is there a simple way to export a markups point list to a table in LPS in Python (rather than the GUI) and then saving that table as a .txt file? I have another program that reads the lps text file and everyth…

---

## [How can I burn or hardcode some anotations into a dicom files (multiple frames-files))](https://discourse.slicer.org/t/how-can-i-burn-or-hardcode-some-anotations-into-a-dicom-files-multiple-frames-files/41437)

<div class="topic-metadata">

**Author:** [@eyado](https://discourse.slicer.org/u/eyado)\
**Replies:** 2\
**Last updated:** [February 11, 2025, 1:08am UTC](https://discourse.slicer.org/t/how-can-i-burn-or-hardcode-some-anotations-into-a-dicom-files-multiple-frames-files/41437 "2025-02-11T01:08:01Z")

</div>

Hello, I am very new to 3dslicer, i used it only once before. I am looking for a way to hard code information (burn) into the dicom files i had from a cbct machine. I am doing a study on extracted teeth, i embedded them…

---

## [What format is use for MANOVA/ANOVA?](https://discourse.slicer.org/t/what-format-is-use-for-manova-anova/41617)

<div class="topic-metadata">

**Author:** [@fbnmb1222](https://discourse.slicer.org/u/fbnmb1222)\
**Replies:** 0\
**Last updated:** [February 11, 2025, 12:28am UTC](https://discourse.slicer.org/t/what-format-is-use-for-manova-anova/41617 "2025-02-11T00:28:38Z")

</div>

I want to verify significance with disease groups.We performed PCA analysis of 3D SLICER and created warped models including PC1, PC2, and PC3. I saved it in .fcsv, vtk, and stl formats, but I would like to know which fo…

---

## [Uploading .VOX image](https://discourse.slicer.org/t/uploading-vox-image/12371)

<div class="topic-metadata">

**Author:** [@Angel](https://discourse.slicer.org/u/Angel)\
**Replies:** 6\
**Last updated:** [February 10, 2025, 9:26pm UTC](https://discourse.slicer.org/t/uploading-vox-image/12371 "2025-02-10T21:26:13Z")

</div>

Hello, I have a .VOX image that I want to upload. Normally, I would convert the .VOX image into a stack of JPEGs, but it would be much more convenient to just upload it in the original format. Can I use the RawImageGues…

---

## [3D Volume display of uterus with vaginal ultrasound (Samsung) ](https://discourse.slicer.org/t/3d-volume-display-of-uterus-with-vaginal-ultrasound-samsung/41452)

<div class="topic-metadata">

**Author:** [@belaus](https://discourse.slicer.org/u/belaus)\
**Replies:** 1\
**Last updated:** [February 10, 2025, 5:08pm UTC](https://discourse.slicer.org/t/3d-volume-display-of-uterus-with-vaginal-ultrasound-samsung/41452 "2025-02-10T17:08:23Z")

</div>

Operating system:Windos 10. Slicer version:5.8 Stable Expected behavior: Actual behavior: Hello Guys! I am really new to analayzing a radiologic files from home. I am an ob/gyn trainee and my scientific topic is rel…

---

## [Autocomplete code lines for slicer in an IDE?](https://discourse.slicer.org/t/autocomplete-code-lines-for-slicer-in-an-ide/7390)

<div class="topic-metadata">

**Author:** [@Amine](https://discourse.slicer.org/u/Amine)\
**Replies:** 6\
**Last updated:** [February 10, 2025, 4:41pm UTC](https://discourse.slicer.org/t/autocomplete-code-lines-for-slicer-in-an-ide/7390 "2025-02-10T16:41:24Z")

</div>

new to slicer development, saw this tutorial and they seem to use an IDE that supports autocompleting statements unique to slicer as in the python interactor: what IDE could i use for that feature ( or ho…

---

## [Show 3D Smoothing Algorithm](https://discourse.slicer.org/t/show-3d-smoothing-algorithm/41593)

<div class="topic-metadata">

**Author:** [@aiacocca](https://discourse.slicer.org/u/aiacocca)\
**Replies:** 1\
**Last updated:** [February 10, 2025, 3:00pm UTC](https://discourse.slicer.org/t/show-3d-smoothing-algorithm/41593 "2025-02-10T15:00:39Z")

</div>

Hello! I was wondering what smoothing algorithm the “Show 3D” smoothing option uses in the segment editor. Thanks!

---

## [MONAILabel 3D Slicer](https://discourse.slicer.org/t/monailabel-3d-slicer/41547)

<div class="topic-metadata">

**Author:** [@Dan1](https://discourse.slicer.org/u/Dan1)\
**Replies:** 1\
**Last updated:** [February 10, 2025, 1:29pm UTC](https://discourse.slicer.org/t/monailabel-3d-slicer/41547 "2025-02-10T13:29:00Z")

</div>

Hey everyone, I’m currently doing an internship at a company where I briefly used MONAILabel through 3D Slicer for annotation purposes. During a pen test, it was discovered that the dataset in use was accessible via the…

---

## [Cannot view ultrasound DICOM files](https://discourse.slicer.org/t/cannot-view-ultrasound-dicom-files/41595)

<div class="topic-metadata">

**Author:** [@pat\_rek](https://discourse.slicer.org/u/pat_rek)\
**Replies:** 1\
**Last updated:** [February 9, 2025, 11:19pm UTC](https://discourse.slicer.org/t/cannot-view-ultrasound-dicom-files/41595 "2025-02-09T23:19:42Z")

</div>

Hi. I can’t view any .DCM files when I load it using “Import DICOM files”. Folders(with DCM files) are the only thing that I see but not the .DCM . I also tried using the latest preview release, same thing.

---

## [DICOM file doesn't show a 3D Model](https://discourse.slicer.org/t/dicom-file-doesnt-show-a-3d-model/41549)

<div class="topic-metadata">

**Author:** [@pat\_rek](https://discourse.slicer.org/u/pat_rek)\
**Replies:** 1\
**Last updated:** [February 9, 2025, 7:30pm UTC](https://discourse.slicer.org/t/dicom-file-doesnt-show-a-3d-model/41549 "2025-02-09T19:30:06Z")

</div>

Hi I dont know what to do anymore. Does anyone know how to tackle this? Version is 5.8.0 So I cant open or see a DCM file when I click “Import DICOM file” under DCM module. All the DICOM files for some reason disappears…

---

## [Mistakenly Data upload ](https://discourse.slicer.org/t/mistakenly-data-upload/41589)

<div class="topic-metadata">

**Author:** [@Noorshah\_Kamawal](https://discourse.slicer.org/u/Noorshah_Kamawal)\
**Replies:** 1\
**Last updated:** [February 9, 2025, 5:01pm UTC](https://discourse.slicer.org/t/mistakenly-data-upload/41589 "2025-02-09T17:01:45Z")

</div>

Does 3D slicer uploads non Dicom data? Mistakenly selected a folder for upload and authorised upload while I was offline, I am concerned if the whole folder with pdf and word files has been uploaded? If yes how can I del…

---

## [Variability of segment volume](https://discourse.slicer.org/t/variability-of-segment-volume/41587)

<div class="topic-metadata">

**Author:** [@vrancois](https://discourse.slicer.org/u/vrancois)\
**Replies:** 0\
**Last updated:** [February 9, 2025, 4:56pm UTC](https://discourse.slicer.org/t/variability-of-segment-volume/41587 "2025-02-09T16:56:52Z")

</div>

I have done segmentations on 2 different image sets which i have saved. I subsequently done a registration on of these images and saved the transform file. When I load the data, do a transform of the one segmentation and…

---

## [OpenDose3D YouTube channel](https://discourse.slicer.org/t/opendose3d-youtube-channel/41135)

<div class="topic-metadata">

**Author:** [@Alex\_Vergara](https://discourse.slicer.org/u/Alex_Vergara)\
**Replies:** 11\
**Last updated:** [February 9, 2025, 1:13pm UTC](https://discourse.slicer.org/t/opendose3d-youtube-channel/41135 "2025-02-09T13:13:49Z")

</div>

Hello I want to announce the start of OpenDose3D YouTube channel. OpenDose3D is a 3DSlicer extension for Patient dosimetry in internal radiotherapy. Please subscribe and leave us your comments.

[Previous page](https://discourse.slicer.org/c/support/11.md?no_subcategories=false&page=51)

[Next page](https://discourse.slicer.org/c/support/11.md?no_subcategories=false&page=53)