# Support

**URL:** https://discourse.slicer.org/c/support/11.md?no_subcategories=false&page=51

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

**Page:** 52

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## [Turning a segment around it's own axis](https://discourse.slicer.org/t/turning-a-segment-around-its-own-axis/41725)

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**Author:** [@Nastia\_Kfir](https://discourse.slicer.org/u/Nastia_Kfir)\
**Replies:** 3\
**Last updated:** [February 20, 2025, 4:33pm UTC](https://discourse.slicer.org/t/turning-a-segment-around-its-own-axis/41725 "2025-02-20T16:33:19Z")

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Hi! i’ve been trying unsucsessfully to understand how can i turn a segment around it’s own axis, but all iv’e managed to find is rotating the segment around the axis of the slice in the transformation module. GPT and ge…

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## [Maximum & minimum length of a liver tumor along the center](https://discourse.slicer.org/t/maximum-minimum-length-of-a-liver-tumor-along-the-center/41789)

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**Author:** [@CNCLD\_Ragama](https://discourse.slicer.org/u/CNCLD_Ragama)\
**Replies:** 0\
**Last updated:** [February 20, 2025, 4:09pm UTC](https://discourse.slicer.org/t/maximum-minimum-length-of-a-liver-tumor-along-the-center/41789 "2025-02-20T16:09:36Z")

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hey i need an immediate response!! so, i’m gonna measure the maximum & minimum length of a liver tumor along the center of the shape how exactly can i do this?? need a clear method asap!!

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## [Converting RTStruct to Dicom SEG for Pyradiomics](https://discourse.slicer.org/t/converting-rtstruct-to-dicom-seg-for-pyradiomics/41689)

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**Author:** [@jackjcoop](https://discourse.slicer.org/u/jackjcoop)\
**Replies:** 4\
**Last updated:** [February 20, 2025, 9:56am UTC](https://discourse.slicer.org/t/converting-rtstruct-to-dicom-seg-for-pyradiomics/41689 "2025-02-20T09:56:32Z")

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Hi all! I am new here, and have been recently struggling with the following. I have a dataset from TCIA I am hoping to analyze containing a CT series and associated segmentations in RTStruct format. Although, I can ext…

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## [Syncronize 2d slices with 3d camera focal point position in Endoscopy module](https://discourse.slicer.org/t/syncronize-2d-slices-with-3d-camera-focal-point-position-in-endoscopy-module/41719)

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**Author:** [@Jay39](https://discourse.slicer.org/u/Jay39)\
**Replies:** 2\
**Last updated:** [February 19, 2025, 10:23pm UTC](https://discourse.slicer.org/t/syncronize-2d-slices-with-3d-camera-focal-point-position-in-endoscopy-module/41719 "2025-02-19T22:23:32Z")

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Hi everyone, I’m a bronchoscopist exploring different software options to perform a virtual bronchoscopy and so long 3d slicer has been great. The only thing that I can’t find how to do is, make the 2d visor with the ct …

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## [DWI radiomic features looking awkward?](https://discourse.slicer.org/t/dwi-radiomic-features-looking-awkward/41782)

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**Author:** [@Fazilhan\_Altintas](https://discourse.slicer.org/u/Fazilhan_Altintas)\
**Replies:** 1\
**Last updated:** [February 19, 2025, 10:12pm UTC](https://discourse.slicer.org/t/dwi-radiomic-features-looking-awkward/41782 "2025-02-19T22:12:02Z")

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Hello Dear 3d Slicer Community, I was segmenting a lesion on mulitple mri sequances to extract radiomic features. After I did I realized something very weird. For example I drew a mask on DWI and then slapped it onto ad…

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## [MDR software qualification or validation ](https://discourse.slicer.org/t/mdr-software-qualification-or-validation/41779)

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**Author:** [@LauraEnd](https://discourse.slicer.org/u/LauraEnd)\
**Replies:** 1\
**Last updated:** [February 19, 2025, 9:50pm UTC](https://discourse.slicer.org/t/mdr-software-qualification-or-validation/41779 "2025-02-19T21:50:03Z")

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Hi, I have used 3D slicer to evaluate the extension of a thermal treatment damage in soft tissue on CT and CBCT dicom datasets (the images were visualised and the data evaluated with markups tool). These data will be par…

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## [Unable to toggle off compression of name during save](https://discourse.slicer.org/t/unable-to-toggle-off-compression-of-name-during-save/41781)

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**Author:** [@Nastia\_Kfir](https://discourse.slicer.org/u/Nastia_Kfir)\
**Replies:** 1\
**Last updated:** [February 19, 2025, 9:41pm UTC](https://discourse.slicer.org/t/unable-to-toggle-off-compression-of-name-during-save/41781 "2025-02-19T21:41:03Z")

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Hi, I’m working in version 5.8.0 working with .nrrd files and creating segments. when saving the data, the nrrd name appears compressed, but i need it to present the full name of the file. toggling off the compress…

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## [Exporting Single study splits into multiple ones](https://discourse.slicer.org/t/exporting-single-study-splits-into-multiple-ones/41780)

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**Author:** [@stanleydsa](https://discourse.slicer.org/u/stanleydsa)\
**Replies:** 0\
**Last updated:** [February 19, 2025, 9:20pm UTC](https://discourse.slicer.org/t/exporting-single-study-splits-into-multiple-ones/41780 "2025-02-19T21:20:03Z")

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Hi, I have been trying to work with volume sequence. The study has multiple volume sequences, I generate a new sequence, and I would like to add the new sequence to the patient to re-export it back as dicom. But the Vol…

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## [What smoothing is applied to segmentations before STL export?](https://discourse.slicer.org/t/what-smoothing-is-applied-to-segmentations-before-stl-export/41743)

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**Author:** [@ramen](https://discourse.slicer.org/u/ramen)\
**Replies:** 3\
**Last updated:** [February 19, 2025, 10:01am UTC](https://discourse.slicer.org/t/what-smoothing-is-applied-to-segmentations-before-stl-export/41743 "2025-02-19T10:01:51Z")

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Hi everyone, I would like to understand the smoothing process applied to segmentations when exporting them as .stl files in 3D Slicer. I assume that after applying the Marching Cubes algorithm, the software performs so…

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## [Unable to create a B-Spline Registration](https://discourse.slicer.org/t/unable-to-create-a-b-spline-registration/41764)

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**Author:** [@ABirch](https://discourse.slicer.org/u/ABirch)\
**Replies:** 0\
**Last updated:** [February 19, 2025, 12:59am UTC](https://discourse.slicer.org/t/unable-to-create-a-b-spline-registration/41764 "2025-02-19T00:59:01Z")

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Greetings, I am having some trouble creating a B-spline registration for 2 lung CTs, one with inhalation (0%) and one with exhalation (50%). The 50% image should be the fixed image. When doing a B-spline registration the…

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## [Extracting the physical characteristics of the applicator in the DRR image](https://discourse.slicer.org/t/extracting-the-physical-characteristics-of-the-applicator-in-the-drr-image/41758)

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**Author:** [@azam](https://discourse.slicer.org/u/azam)\
**Replies:** 0\
**Last updated:** [February 18, 2025, 3:27pm UTC](https://discourse.slicer.org/t/extracting-the-physical-characteristics-of-the-applicator-in-the-drr-image/41758 "2025-02-18T15:27:03Z")

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Hi everyone I have a DRR image and I want to extract the physical characteristics of the brachytherapy applicator from it using 3D Slicer software. How can I do this? Can you help me? Thanks a lot

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## [SlicerJupyter Not Found in Slicer 5.7 and 5.8](https://discourse.slicer.org/t/slicerjupyter-not-found-in-slicer-5-7-and-5-8/41463)

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**Author:** [@park](https://discourse.slicer.org/u/park)\
**Replies:** 4\
**Last updated:** [February 18, 2025, 3:24pm UTC](https://discourse.slicer.org/t/slicerjupyter-not-found-in-slicer-5-7-and-5-8/41463 "2025-02-18T15:24:42Z")

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Hello, I noticed that SlicerJupyter is not available in both Slicer 5.7 and 5.8. Is it only compatible with Slicer 5.6? Additionally, I would like to know if there are any plans to update and support it in future versio…

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## [Segmentations/Segment Editor - toggle visibility for all segments](https://discourse.slicer.org/t/segmentations-segment-editor-toggle-visibility-for-all-segments/4706)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 8\
**Last updated:** [February 18, 2025, 3:12pm UTC](https://discourse.slicer.org/t/segmentations-segment-editor-toggle-visibility-for-all-segments/4706 "2025-02-18T15:12:08Z")

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When I load a reasonably large number of segments, I find it useful to visualize one segment at a time. It would be very helpful if it was possible to toggle visibility of all segments at once, since otherwise they need…

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## [Cross segment area with angulation](https://discourse.slicer.org/t/cross-segment-area-with-angulation/41741)

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**Author:** [@N.Maagdenberg](https://discourse.slicer.org/u/N.Maagdenberg)\
**Replies:** 1\
**Last updated:** [February 17, 2025, 8:14pm UTC](https://discourse.slicer.org/t/cross-segment-area-with-angulation/41741 "2025-02-17T20:14:09Z")

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Operating system: Windows Slicer version: 5.6.2. Expected behavior: I am using segment editor to measure the cross sectional area of the paravertebral muscles at level C3, in different angles to mimick possible head ti…

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## [printing a dicom file, dicom to ???STL to print](https://discourse.slicer.org/t/printing-a-dicom-file-dicom-to-stl-to-print/41705)

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**Author:** [@Wannab3ddentist](https://discourse.slicer.org/u/Wannab3ddentist)\
**Replies:** 4\
**Last updated:** [February 17, 2025, 6:07pm UTC](https://discourse.slicer.org/t/printing-a-dicom-file-dicom-to-stl-to-print/41705 "2025-02-17T18:07:58Z")

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Operating system:winn pro11 Slicer version:5.8.0 Expected behavior: Actual behavior: can i find step by step instructions for converting dicom to stl file for printing?

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## [Creating animation with a set of meshes deforming over time overlapped to ct-scan](https://discourse.slicer.org/t/creating-animation-with-a-set-of-meshes-deforming-over-time-overlapped-to-ct-scan/41702)

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**Author:** [@msensale1](https://discourse.slicer.org/u/msensale1)\
**Replies:** 4\
**Last updated:** [February 17, 2025, 4:49pm UTC](https://discourse.slicer.org/t/creating-animation-with-a-set-of-meshes-deforming-over-time-overlapped-to-ct-scan/41702 "2025-02-17T16:49:20Z")

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Hi All, I have a set of meshes (vtk) that represent the same geometry deforming over time. Each time refers to a different time step. I could upload this set of meshes in Paraview and generate an animation with the movi…

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## [Segmentation on 3D ultrasound data from raw images?](https://discourse.slicer.org/t/segmentation-on-3d-ultrasound-data-from-raw-images/23151)

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**Author:** [@MCrouzier](https://discourse.slicer.org/u/MCrouzier)\
**Replies:** 3\
**Last updated:** [February 17, 2025, 4:21pm UTC](https://discourse.slicer.org/t/segmentation-on-3d-ultrasound-data-from-raw-images/23151 "2025-02-17T16:21:42Z")

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Dear all, I am using 3D slicer (v4.11) to collect 3D-ultrasound data of some human body tendons. I noticed that when I reconstruct a 3D volume from an ultrasound acquisition, I loose a lot in image quality (even when t…

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## [Creation of binary label map from RTSTRUCT affecting segmentations](https://discourse.slicer.org/t/creation-of-binary-label-map-from-rtstruct-affecting-segmentations/41738)

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**Author:** [@yasmin.mcquinlan](https://discourse.slicer.org/u/yasmin.mcquinlan)\
**Replies:** 1\
**Last updated:** [February 17, 2025, 12:39pm UTC](https://discourse.slicer.org/t/creation-of-binary-label-map-from-rtstruct-affecting-segmentations/41738 "2025-02-17T12:39:50Z")

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On import of RTSTRUCT into Segmentation Editor, I am asked to convert to a binary label map from a Planar contour. But on doing so, the segmentations have undesirable artefacts that weren’t present previously (see below)…

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## [Monailabel issue - Internal Server Error](https://discourse.slicer.org/t/monailabel-issue-internal-server-error/39699)

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**Author:** [@Daniel\_Lo](https://discourse.slicer.org/u/Daniel_Lo)\
**Replies:** 3\
**Last updated:** [February 17, 2025, 10:57am UTC](https://discourse.slicer.org/t/monailabel-issue-internal-server-error/39699 "2025-02-17T10:57:49Z")

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Facing a few issues while using monailabel training. 1) \[Python\] Failed to run inference in MONAI Label Server. \[Python\] Message: Status: 500; Response: Internal Server Error Traceback (most recent call last): File …

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## [Spatial registration transform matrix](https://discourse.slicer.org/t/spatial-registration-transform-matrix/41636)

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**Author:** [@ramonemiliani93](https://discourse.slicer.org/u/ramonemiliani93)\
**Replies:** 6\
**Last updated:** [February 17, 2025, 9:51am UTC](https://discourse.slicer.org/t/spatial-registration-transform-matrix/41636 "2025-02-17T09:51:03Z")

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Hello! I’m trying to load a spatial registration into 3D Slicer, and I’ve run into a few questions: 1. Multiple Frames of Reference Does 3D Slicer support multiple frames of reference in a single registration file? I’…

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## [Ultrasound Segmentation Using Downloaded Ultrasounds (not real time)](https://discourse.slicer.org/t/ultrasound-segmentation-using-downloaded-ultrasounds-not-real-time/30801)

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**Author:** [@jsarsam](https://discourse.slicer.org/u/jsarsam)\
**Replies:** 2\
**Last updated:** [February 17, 2025, 2:29am UTC](https://discourse.slicer.org/t/ultrasound-segmentation-using-downloaded-ultrasounds-not-real-time/30801 "2025-02-17T02:29:37Z")

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Hello! I am interested in reconstructing segmentations of echocardiograms using 3D slicer. I saw this video tutorial (Real-time ultrasound AI segmentation and volume reconstruction - YouTube) about how to do this if the …

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## [Slicer Extension Manager build error: Missing Photogrammetry.json on CDash](https://discourse.slicer.org/t/slicer-extension-manager-build-error-missing-photogrammetry-json-on-cdash/41707)

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**Author:** [@oothomas](https://discourse.slicer.org/u/oothomas)\
**Replies:** 4\
**Last updated:** [February 16, 2025, 8:03pm UTC](https://discourse.slicer.org/t/slicer-extension-manager-build-error-missing-photogrammetry-json-on-cdash/41707 "2025-02-16T20:03:40Z")

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Hello everyone, I’m having trouble with my SlicerPhotogrammetry extension on the Slicer Preview dashboard. This is not a personal/local build; it’s built on the official dashboard (CDash). Despite the build itself compl…

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## [About fMRI & Unity](https://discourse.slicer.org/t/about-fmri-unity/29112)

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**Author:** [@Shaban](https://discourse.slicer.org/u/Shaban)\
**Replies:** 4\
**Last updated:** [February 15, 2025, 6:30pm UTC](https://discourse.slicer.org/t/about-fmri-unity/29112 "2025-02-15T18:30:20Z")

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Hello, I’m new here. I have a question regarding fMRI visualization in VR & unity. right now I’m planning to import .nii format file into unity to view it in PCVR, and also add a lot of other different features as a gam…

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## [Attempting CT skull stripping in python](https://discourse.slicer.org/t/attempting-ct-skull-stripping-in-python/24240)

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**Author:** [@KateDelb](https://discourse.slicer.org/u/KateDelb)\
**Replies:** 1\
**Last updated:** [February 14, 2025, 7:48pm UTC](https://discourse.slicer.org/t/attempting-ct-skull-stripping-in-python/24240 "2025-02-14T19:48:13Z")

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I’m following the recipe for CT skull stripping (Overview | 3D Slicer segmentation recipes) which works perfectly in the GUI. I am attempting to automate this with python as I have many samples. I am new to this so sorry…

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## [Dental segmentator keeps getting error even after multiple reinstallation](https://discourse.slicer.org/t/dental-segmentator-keeps-getting-error-even-after-multiple-reinstallation/41706)

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**Author:** [@Dr\_Akshaya\_S\_R1](https://discourse.slicer.org/u/Dr_Akshaya_S_R1)\
**Replies:** 0\
**Last updated:** [February 14, 2025, 6:40pm UTC](https://discourse.slicer.org/t/dental-segmentator-keeps-getting-error-even-after-multiple-reinstallation/41706 "2025-02-14T18:40:29Z")

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I’m working on a dental segmentator, but no matter how much I try, I keep getting this error. Could you please help? My laptop has 32 GB of RAM and an RTX 2000 Ada GPU.

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## [Better performance for TPS deformation?](https://discourse.slicer.org/t/better-performance-for-tps-deformation/41693)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 1\
**Last updated:** [February 14, 2025, 6:08pm UTC](https://discourse.slicer.org/t/better-performance-for-tps-deformation/41693 "2025-02-14T18:08:04Z")

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we use TPS to create interactive visualization of landmark based deformations, in which the user sets a slider to adjust magnitude of the deformation: This works well (fast enough to be interactive) up to about 50-60 p…

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## [Question About Using SimpleITK for Image Resampling](https://discourse.slicer.org/t/question-about-using-simpleitk-for-image-resampling/41703)

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**Author:** [@Linjun\_Yang](https://discourse.slicer.org/u/Linjun_Yang)\
**Replies:** 0\
**Last updated:** [February 14, 2025, 4:04pm UTC](https://discourse.slicer.org/t/question-about-using-simpleitk-for-image-resampling/41703 "2025-02-14T16:04:35Z")

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It’s my first time to ask a question in 3D Slicer forum so please bear with me if I fail to follow some rules. Thanks in advance! I am trying to use SimpleITK to resample a given CT image saved in Nifti format. The give…

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## [UKFTractography not supported in newest release](https://discourse.slicer.org/t/ukftractography-not-supported-in-newest-release/41667)

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**Author:** [@fraslau](https://discourse.slicer.org/u/fraslau)\
**Replies:** 3\
**Last updated:** [February 14, 2025, 3:54pm UTC](https://discourse.slicer.org/t/ukftractography-not-supported-in-newest-release/41667 "2025-02-14T15:54:07Z")

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The currently newest stable release 5.8.0 and preview release 5.9.0 for Windows do not support UKFTractography. I downloaded both versions and then downloaded extension SlicerDMRI, but I get the following error message: …

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## [Is it possible to slice lungs to anatomical segments?](https://discourse.slicer.org/t/is-it-possible-to-slice-lungs-to-anatomical-segments/41647)

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**Author:** [@Ismail\_Sarbay](https://discourse.slicer.org/u/Ismail_Sarbay)\
**Replies:** 4\
**Last updated:** [February 14, 2025, 1:32pm UTC](https://discourse.slicer.org/t/is-it-possible-to-slice-lungs-to-anatomical-segments/41647 "2025-02-14T13:32:59Z")

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Hi there, I loved the 3D segmentation of the lungs but it is only lobe level segmentation. Is it possible to make the segmentation further to anatomical segmentation of each lung lobe for example 3 segments of right upp…

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## [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)

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**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")

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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!

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