# Support

**URL:** https://discourse.slicer.org/c/support/11.md?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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## [Acquring different metrics](https://discourse.slicer.org/t/acquring-different-metrics/41796)

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**Author:** [@marwa\_mohamed](https://discourse.slicer.org/u/marwa_mohamed)\
**Replies:** 1\
**Last updated:** [February 21, 2025, 5:43pm UTC](https://discourse.slicer.org/t/acquring-different-metrics/41796 "2025-02-21T17:43:03Z")

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Please i need help How can i acquire different parameters like fractional anisotrop and mean diffuisvity from cereberal white matter tract i have extracted

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## [How do you find minimum and maximum diameters using the closed curve function?](https://discourse.slicer.org/t/how-do-you-find-minimum-and-maximum-diameters-using-the-closed-curve-function/13944)

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**Author:** [@Trex48](https://discourse.slicer.org/u/Trex48)\
**Replies:** 9\
**Last updated:** [February 21, 2025, 12:33pm UTC](https://discourse.slicer.org/t/how-do-you-find-minimum-and-maximum-diameters-using-the-closed-curve-function/13944 "2025-02-21T12:33:45Z")

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RT, I am trying to find the minimum and maximum diameters of a irregular closed curve in the shape of a circle/oval. Does anyone know how to do this via python code or another extension? Thanks!

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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/41794)

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**Author:** [@CNCLD\_Ragama](https://discourse.slicer.org/u/CNCLD_Ragama)\
**Replies:** 0\
**Last updated:** [February 20, 2025, 11:11pm UTC](https://discourse.slicer.org/t/maximum-minimum-length-of-a-liver-tumor-along-the-center/41794 "2025-02-20T23:11:26Z")

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hey i need an immediate response!! :fire::fire: 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?? :thinking: need a clear method asap!!

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## [TotalSegmentator update 2.6 Not Working](https://discourse.slicer.org/t/totalsegmentator-update-2-6-not-working/41772)

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**Author:** [@Khaldoun](https://discourse.slicer.org/u/Khaldoun)\
**Replies:** 1\
**Last updated:** [February 20, 2025, 7:47pm UTC](https://discourse.slicer.org/t/totalsegmentator-update-2-6-not-working/41772 "2025-02-20T19:47:37Z")

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Operating system:windows 10 Professional Slicer version: 5.8.0 Expected behavior:Previous version 2.4 of TotalSementator was perfectly working but after the update to 2.6 even forcing reinstall it is not working and it…

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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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