# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=5

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

**Page:** 6

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## [NIfTI (.nii.gz) loading failure for TotalSegmentator samples in 3D Slicer 5.10.0 on Apple M4 Pro](https://discourse.slicer.org/t/nifti-nii-gz-loading-failure-for-totalsegmentator-samples-in-3d-slicer-5-10-0-on-apple-m4-pro/47405)

<div class="topic-metadata">

**Author:** [@khorlint](https://discourse.slicer.org/u/khorlint)\
**Replies:** 2\
**Last updated:** [June 22, 2026, 3:18pm UTC](https://discourse.slicer.org/t/nifti-nii-gz-loading-failure-for-totalsegmentator-samples-in-3d-slicer-5-10-0-on-apple-m4-pro/47405 "2026-06-22T15:18:29Z")

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Description: I am encountering a consistent error when loading multiple samples from the TotalSegmentator dataset in 3D Slicer (version 5.10.0) on an Apple M4 Pro machine. Environment: 3D Slicer version: 5.10.0 OS: m…

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## [plugin specialized in segmenting layers in the abdominal wall](https://discourse.slicer.org/t/plugin-specialized-in-segmenting-layers-in-the-abdominal-wall/47427)

<div class="topic-metadata">

**Author:** [@arcsurgery](https://discourse.slicer.org/u/arcsurgery)\
**Replies:** 0\
**Last updated:** [June 22, 2026, 12:41pm UTC](https://discourse.slicer.org/t/plugin-specialized-in-segmenting-layers-in-the-abdominal-wall/47427 "2026-06-22T12:41:07Z")

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Is there a plugin that can segment the layers in the abdominal wall?

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## [slicer.modules.SegmentEditorWidget does not exists anymore](https://discourse.slicer.org/t/slicer-modules-segmenteditorwidget-does-not-exists-anymore/47334)

<div class="topic-metadata">

**Author:** [@joachim](https://discourse.slicer.org/u/joachim)\
**Replies:** 3\
**Last updated:** [June 22, 2026, 8:19am UTC](https://discourse.slicer.org/t/slicer-modules-segmenteditorwidget-does-not-exists-anymore/47334 "2026-06-22T08:19:42Z")

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I haven’t updated Slicer for a while, but now my .slicerrc does not work as usual. I have the line slicer.modules.SegmentEditorWidget.editor.findChild( "QWidget", "EffectsGroupBox" ), but in the newest Slicer version the…

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## [Looking for cardiac CTA datasets suitable for left atrium and pulmonary vein STL reconstruction](https://discourse.slicer.org/t/looking-for-cardiac-cta-datasets-suitable-for-left-atrium-and-pulmonary-vein-stl-reconstruction/47418)

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**Author:** [@shen\_mqshen](https://discourse.slicer.org/u/shen_mqshen)\
**Replies:** 1\
**Last updated:** [June 22, 2026, 6:11am UTC](https://discourse.slicer.org/t/looking-for-cardiac-cta-datasets-suitable-for-left-atrium-and-pulmonary-vein-stl-reconstruction/47418 "2026-06-22T06:11:24Z")

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I need to segment left atrium and pulmonary veins. I need CTA data, I’ll really appreciate it. Thanks!

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## [Brain MRI Gray Matter](https://discourse.slicer.org/t/brain-mri-gray-matter/47420)

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**Author:** [@bruce2647](https://discourse.slicer.org/u/bruce2647)\
**Replies:** 0\
**Last updated:** [June 22, 2026, 6:10am UTC](https://discourse.slicer.org/t/brain-mri-gray-matter/47420 "2026-06-22T06:10:07Z")

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Continuing the discussion from Brain MRI Gray Matter Segmentation: Fatima explained this really well. The point about thresholding not capturing cortical surface detail properly is probably the key issue here, especial…

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## [Image corruption when loading single DICOM CT slice as Scalar Volume](https://discourse.slicer.org/t/image-corruption-when-loading-single-dicom-ct-slice-as-scalar-volume/47388)

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**Author:** [@Martina\_Caro95](https://discourse.slicer.org/u/Martina_Caro95)\
**Replies:** 1\
**Last updated:** [June 20, 2026, 8:01pm UTC](https://discourse.slicer.org/t/image-corruption-when-loading-single-dicom-ct-slice-as-scalar-volume/47388 "2026-06-20T20:01:17Z")

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Hi everyone, I am currently working on building a retrospective clinical database, extracting body composition and radiomic data from thoracic CT scans specifically at the T4 level. Our historical workflow involved expo…

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## [Stable Release 5.1 Cannot be Opened Because Developer is Unverified](https://discourse.slicer.org/t/stable-release-5-1-cannot-be-opened-because-developer-is-unverified/47389)

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**Author:** [@JHegg](https://discourse.slicer.org/u/JHegg)\
**Replies:** 1\
**Last updated:** [June 20, 2026, 3:18pm UTC](https://discourse.slicer.org/t/stable-release-5-1-cannot-be-opened-because-developer-is-unverified/47389 "2026-06-20T15:18:10Z")

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Hello, I recently downloaded the latest stable version of slicer for MacOS and updated from a prior version. However, I get the “Cannot be opened because the developer cannot be verified error”. I am aware that the pre…

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## [Partial GPA idea for slicermorph](https://discourse.slicer.org/t/partial-gpa-idea-for-slicermorph/47387)

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**Author:** [@Stephan\_Collins](https://discourse.slicer.org/u/Stephan_Collins)\
**Replies:** 3\
**Last updated:** [June 19, 2026, 5:24pm UTC](https://discourse.slicer.org/t/partial-gpa-idea-for-slicermorph/47387 "2026-06-19T17:24:27Z")

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Dear all, Dear all, I am writing from a conference where I am learning a great deal about morphogeometry, which is quite far from my original background. One issue that has come up, and that I have also encountered wh…

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## [Segmentation Folders / Groups / Layers](https://discourse.slicer.org/t/segmentation-folders-groups-layers/47375)

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**Author:** [@LindenRB](https://discourse.slicer.org/u/LindenRB)\
**Replies:** 4\
**Last updated:** [June 19, 2026, 12:31am UTC](https://discourse.slicer.org/t/segmentation-folders-groups-layers/47375 "2026-06-19T00:31:56Z")

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Hi, Apologies in advance if this is obvious but I have tried to search for a solution for this but not found one. I am doing a lot of full body segmentations from CT imaging, and have been using Total Segmentator to sp…

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## [Export Models as One STL after transformation](https://discourse.slicer.org/t/export-models-as-one-stl-after-transformation/47371)

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**Author:** [@jawdoc](https://discourse.slicer.org/u/jawdoc)\
**Replies:** 5\
**Last updated:** [June 18, 2026, 12:43pm UTC](https://discourse.slicer.org/t/export-models-as-one-stl-after-transformation/47371 "2026-06-18T12:43:43Z")

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Greetings. I am a facial surgeon and fairly familiar with 3D Slicer. I have a quick question. So my goal is to take a mandible fracture, segment the fracture, and move the segments to their anatomic positions, which allo…

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## [Crash when activating "interaction" in subject hierarchy to transform a volume](https://discourse.slicer.org/t/crash-when-activating-interaction-in-subject-hierarchy-to-transform-a-volume/47373)

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**Author:** [@PitaChib](https://discourse.slicer.org/u/PitaChib)\
**Replies:** 2\
**Last updated:** [June 18, 2026, 5:45am UTC](https://discourse.slicer.org/t/crash-when-activating-interaction-in-subject-hierarchy-to-transform-a-volume/47373 "2026-06-18T05:45:50Z")

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I recently updated to Slicer 5.10.0, and today when I load my .nrrd files, a couple times (at least 3 times in the span of finishing 6 scans), I right click to check “interaction” then slicer would just crash and quit. I…

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## [ImageStacks is not showing up as an option in the SlicerMorph extension](https://discourse.slicer.org/t/imagestacks-is-not-showing-up-as-an-option-in-the-slicermorph-extension/47372)

<div class="topic-metadata">

**Author:** [@Lachesis676](https://discourse.slicer.org/u/Lachesis676)\
**Replies:** 1\
**Last updated:** [June 17, 2026, 8:20pm UTC](https://discourse.slicer.org/t/imagestacks-is-not-showing-up-as-an-option-in-the-slicermorph-extension/47372 "2026-06-17T20:20:24Z")

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Hello, I have downloaded 3D Slicer 5.10 for macOS and I also installed the SlicerMorph extension. Unfortunately, ImageStacks is not showing up as an option. I have tried reinstallation of both 3D Slicer and SlicerMorph. …

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## [Create a plane that is perpendicular to another plane](https://discourse.slicer.org/t/create-a-plane-that-is-perpendicular-to-another-plane/47307)

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**Author:** [@jsguerra](https://discourse.slicer.org/u/jsguerra)\
**Replies:** 11\
**Last updated:** [June 17, 2026, 5:17pm UTC](https://discourse.slicer.org/t/create-a-plane-that-is-perpendicular-to-another-plane/47307 "2026-06-17T17:17:21Z")

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I’ve created a best fit plane from a point list in the Markups module and I would like to create a second plane perpendicular to the best fit plane. Attached is an example using one of the mouse crania from the SlicerMor…

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## [Question about why MIP results differ even when using a Slab Thickness large enough to cover the entire volume in the Slice Viewer](https://discourse.slicer.org/t/question-about-why-mip-results-differ-even-when-using-a-slab-thickness-large-enough-to-cover-the-entire-volume-in-the-slice-viewer/47351)

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**Author:** [@Changyoon\_Lee](https://discourse.slicer.org/u/Changyoon_Lee)\
**Replies:** 1\
**Last updated:** [June 16, 2026, 1:20pm UTC](https://discourse.slicer.org/t/question-about-why-mip-results-differ-even-when-using-a-slab-thickness-large-enough-to-cover-the-entire-volume-in-the-slice-viewer/47351 "2026-06-16T13:20:05Z")

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Hello, I have a question about an unexpected behavior I observed while checking MIP results using Slab Reconstruction in the 3D Slicer Slice Viewer. I tested this using the MRHead volume provided with 3D Slicer. The ac…

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## [\- Struggling With Liver Segmentation in 3D Slicer — Need Guidance](https://discourse.slicer.org/t/struggling-with-liver-segmentation-in-3d-slicer-need-guidance/46420)

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**Author:** [@Marco\_Ribeiro\_Silva](https://discourse.slicer.org/u/Marco_Ribeiro_Silva)\
**Replies:** 6\
**Last updated:** [June 16, 2026, 11:18am UTC](https://discourse.slicer.org/t/struggling-with-liver-segmentation-in-3d-slicer-need-guidance/46420 "2026-06-16T11:18:12Z")

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Hello everybody I’m currently struggling to find up‑to‑date datasets to learn how to segment the liver in 3D Slicer. Many of the extensions I come across are outdated, incompatible, or no longer maintained, which makes …

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## [Unable to import GE Vivid E95 4D echocardiography data into 3D Slicer](https://discourse.slicer.org/t/unable-to-import-ge-vivid-e95-4d-echocardiography-data-into-3d-slicer/47184)

<div class="topic-metadata">

**Author:** [@taki011](https://discourse.slicer.org/u/taki011)\
**Replies:** 1\
**Last updated:** [June 16, 2026, 10:19am UTC](https://discourse.slicer.org/t/unable-to-import-ge-vivid-e95-4d-echocardiography-data-into-3d-slicer/47184 "2026-06-16T10:19:17Z")

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Hello, I am trying to import 4D cardiac ultrasound data from a GE Vivid E95 into 3D Slicer (using the SlicerHeart extension) but I have not been able to load the volumetric data successfully. What I have tried: 1. Ex…

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## [Nvidia AIAA on default server, I dont have "annotation\_mri\_brain\_tumors\_t1ce\_tc" model under Segment from Boundary points (DExtr3D). I just have three models brain mri, lung ct covid and spleen annotation. How to get that model?](https://discourse.slicer.org/t/nvidia-aiaa-on-default-server-i-dont-have-annotation-mri-brain-tumors-t1ce-tc-model-under-segment-from-boundary-points-dextr3d-i-just-have-three-models-brain-mri-lung-ct-covid-and-spleen-annotation-how-to-get-that-model/21347)

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**Author:** [@Akhil\_Ratan\_Mishra](https://discourse.slicer.org/u/Akhil_Ratan_Mishra)\
**Replies:** 1\
**Last updated:** [June 16, 2026, 7:37am UTC](https://discourse.slicer.org/t/nvidia-aiaa-on-default-server-i-dont-have-annotation-mri-brain-tumors-t1ce-tc-model-under-segment-from-boundary-points-dextr3d-i-just-have-three-models-brain-mri-lung-ct-covid-and-spleen-annotation-how-to-get-that-model/21347 "2026-06-16T07:37:59Z")

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Operating system: Windows 11 Slicer version:4.11 Expected behavior: Actual behavior:

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## [Free form cutting tool in segment editor is slower. ](https://discourse.slicer.org/t/free-form-cutting-tool-in-segment-editor-is-slower/47245)

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**Author:** [@Chayce\_Ross](https://discourse.slicer.org/u/Chayce_Ross)\
**Replies:** 1\
**Last updated:** [June 16, 2026, 5:28am UTC](https://discourse.slicer.org/t/free-form-cutting-tool-in-segment-editor-is-slower/47245 "2026-06-16T05:28:39Z")

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Recently the UI updated for the cutting tool in the segment editor to include new options like rectangle or circular cutting tools. These are much faster than the free form tool was/is. However, I feel like the performan…

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## [How can Calculate & Visualize the Center of Mass (COM)?](https://discourse.slicer.org/t/how-can-calculate-visualize-the-center-of-mass-com/47074)

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**Author:** [@zahra\_Tabasi](https://discourse.slicer.org/u/zahra_Tabasi)\
**Replies:** 3\
**Last updated:** [June 15, 2026, 10:30pm UTC](https://discourse.slicer.org/t/how-can-calculate-visualize-the-center-of-mass-com/47074 "2026-06-15T22:30:38Z")

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Hello everyone, I am currently conducting a research study involving patients with unilateral left-sided breast cancer undergoing radiotherapy. The purpose of my study is to compare Normal Breathing (free breathing) and…

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## [Registered SPECT DICOM export issue](https://discourse.slicer.org/t/registered-spect-dicom-export-issue/47347)

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**Author:** [@Sorawipat\_Intamoon](https://discourse.slicer.org/u/Sorawipat_Intamoon)\
**Replies:** 1\
**Last updated:** [June 15, 2026, 7:03pm UTC](https://discourse.slicer.org/t/registered-spect-dicom-export-issue/47347 "2026-06-15T19:03:09Z")

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Dear all, I am working on image-based internal dosimetry using multiple-time-point quantitative SPECT images. To align the images across time points, I registered each CT image to a reference CT and then applied the re…

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## [TotalSegmentator Partial Segmentation](https://discourse.slicer.org/t/totalsegmentator-partial-segmentation/47335)

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**Author:** [@Arash1](https://discourse.slicer.org/u/Arash1)\
**Replies:** 3\
**Last updated:** [June 15, 2026, 2:46pm UTC](https://discourse.slicer.org/t/totalsegmentator-partial-segmentation/47335 "2026-06-15T14:46:54Z")

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Any suggestions on why the segment is like this? \[DEBUG\]\[Qt\] 14.06.2026 13:36:34 (unknown:0) - Session start time …: 20260614\_133634 \[DEBUG\]\[Qt\] 14.06.2026 13:36:34 (unknown:0) - Slicer version …: 5.10.0 (revision…

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## [HighRes segmentation in TotalSegmentator](https://discourse.slicer.org/t/highres-segmentation-in-totalsegmentator/47345)

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**Author:** [@jordy86](https://discourse.slicer.org/u/jordy86)\
**Replies:** 0\
**Last updated:** [June 15, 2026, 12:40pm UTC](https://discourse.slicer.org/t/highres-segmentation-in-totalsegmentator/47345 "2026-06-15T12:40:22Z")

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I noticed some test high res models in the TotalSegmentator github a while back but now they are gone. Are there any plans to introduce higher resolution segmentation similar to the highresh heart chambers available now? …

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## [Airway segmentation of mouse lung](https://discourse.slicer.org/t/airway-segmentation-of-mouse-lung/47320)

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**Author:** [@ljuno](https://discourse.slicer.org/u/ljuno)\
**Replies:** 4\
**Last updated:** [June 13, 2026, 4:40pm UTC](https://discourse.slicer.org/t/airway-segmentation-of-mouse-lung/47320 "2026-06-13T16:40:18Z")

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Hello, I am working with 3D slicer in hopes to segment the airway of this mouse lung, acquired from lightsheet microscopy. I would like to segment the main airways, but not the alveoli (at least not yet - I am hoping to…

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## [Issues 3D view .vtk model](https://discourse.slicer.org/t/issues-3d-view-vtk-model/47237)

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**Author:** [@Stephan\_Collins](https://discourse.slicer.org/u/Stephan_Collins)\
**Replies:** 15\
**Last updated:** [June 12, 2026, 11:33am UTC](https://discourse.slicer.org/t/issues-3d-view-vtk-model/47237 "2026-06-12T11:33:17Z")

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Dear greatest community of all, I am having issues displaying models whilst segments are looking just fine in 3D view. I am running slicer on linux on a calculation server, never had this kind of troubles before… affec…

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## [Which is the best extension for Brain parcellation?](https://discourse.slicer.org/t/which-is-the-best-extension-for-brain-parcellation/45483)

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**Author:** [@Suhaim](https://discourse.slicer.org/u/Suhaim)\
**Replies:** 3\
**Last updated:** [June 11, 2026, 9:28pm UTC](https://discourse.slicer.org/t/which-is-the-best-extension-for-brain-parcellation/45483 "2026-06-11T21:28:16Z")

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Hi, Is there any extension in 3D-Slicer which offers automated brain segmentation for parts such as - Amygdala, Hippocampus, Insula etc.? Which extension has the best accuracy? I was able to find SlicerNeuroSegmentatio…

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## [Volume rendering rainbow hue?](https://discourse.slicer.org/t/volume-rendering-rainbow-hue/47319)

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**Author:** [@PitaChib](https://discourse.slicer.org/u/PitaChib)\
**Replies:** 1\
**Last updated:** [June 11, 2026, 5:17pm UTC](https://discourse.slicer.org/t/volume-rendering-rainbow-hue/47319 "2026-06-11T17:17:54Z")

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Hi all, I’m working with a ct scanned skull, and I used the preset microCT bone 16 bit preset to display my volume. However, no matter how I toggle the intensity settings and the advanced things, this hue exists, and as …

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## [ Subtract Segment using python console is not working](https://discourse.slicer.org/t/subtract-segment-using-python-console-is-not-working/47315)

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**Author:** [@Gaia\_Eligio](https://discourse.slicer.org/u/Gaia_Eligio)\
**Replies:** 0\
**Last updated:** [June 11, 2026, 3:10pm UTC](https://discourse.slicer.org/t/subtract-segment-using-python-console-is-not-working/47315 "2026-06-11T15:10:32Z")

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Hi, all. I am working on a Python script to automate the creation of skull, meninges, and CSF with the use of segmentations imported from FreeSurfer and MRI images. This is for a research project on Traumatic Brain Injur…

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## [Slice view orientation of oblique/rotated volumes - aligned to volume or anatomical axes?](https://discourse.slicer.org/t/slice-view-orientation-of-oblique-rotated-volumes-aligned-to-volume-or-anatomical-axes/20092)

<div class="topic-metadata">

**Author:** [@Sharada](https://discourse.slicer.org/u/Sharada)\
**Replies:** 14\
**Last updated:** [June 10, 2026, 8:13pm UTC](https://discourse.slicer.org/t/slice-view-orientation-of-oblique-rotated-volumes-aligned-to-volume-or-anatomical-axes/20092 "2026-06-10T20:13:59Z")

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I have a Sagittal volume (DICOM) that is displayed obliquely in Slicer (because it is an oblique sagittal reconstruction) and it makes perfect sense. Here is the volume information: The same image, when converted …

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## [Request for Contribution Acknowledgment for Slicer language translations](https://discourse.slicer.org/t/request-for-contribution-acknowledgment-for-slicer-language-translations/47286)

<div class="topic-metadata">

**Author:** [@Thamer\_Alamoudi](https://discourse.slicer.org/u/Thamer_Alamoudi)\
**Replies:** 1\
**Last updated:** [June 9, 2026, 8:49pm UTC](https://discourse.slicer.org/t/request-for-contribution-acknowledgment-for-slicer-language-translations/47286 "2026-06-09T20:49:40Z")

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Hello 3D Slicer Team, I have contributed to the translation of several 3D Slicer projects through Weblate under the username thameralamoudi. For professional and academic documentation purposes, I would like to ask whe…

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## [Adding landmarks using Point List results in screen glitches](https://discourse.slicer.org/t/adding-landmarks-using-point-list-results-in-screen-glitches/47173)

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**Author:** [@thelobsternods](https://discourse.slicer.org/u/thelobsternods)\
**Replies:** 5\
**Last updated:** [June 8, 2026, 6:40pm UTC](https://discourse.slicer.org/t/adding-landmarks-using-point-list-results-in-screen-glitches/47173 "2026-06-08T18:40:49Z")

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We have been using the same protocol for adding landmarks to 3D models for years, but are suddenly experiencing issues with our established protocol. Specifically, we only have this problem after starting a new “point li…

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