# Latest

**URL:** https://discourse.slicer.org/latest.md?page=14

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

**Page:** 15

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## [Persistent Error when Generating SkinMould](https://discourse.slicer.org/t/persistent-error-when-generating-skinmould/46930)

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**Author:** [@MichaelRuiz95](https://discourse.slicer.org/u/MichaelRuiz95)\
**Replies:** 0\
**Last updated:** [May 5, 2026, 2:52pm UTC](https://discourse.slicer.org/t/persistent-error-when-generating-skinmould/46930 "2026-05-05T14:52:22Z")

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Hello! My name is Michael, I am an undergrad student currently doing a senior research project that involves the use of 3DSlicer. It is a great application, however when I try to generate a skin mould to generate a mode…

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## [PW 45 meetings begin next Week!](https://discourse.slicer.org/t/pw-45-meetings-begin-next-week/46872)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [May 5, 2026, 1:50pm UTC](https://discourse.slicer.org/t/pw-45-meetings-begin-next-week/46872 "2026-05-05T13:50:27Z")

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Dear Project Week community, The first project week preparation meeting for PW 45 will be next Tuesday, May 5th, at 10:00 AM ET. (2026-05-05T14:00:00Z (UTC)) If you are interested in discussing a possible project, plea…

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## [TotalSegmentator fails to install PyTorch dependencies – installTorch() got unexpected keyword argument 'torchVisionVersionRequirement'](https://discourse.slicer.org/t/totalsegmentator-fails-to-install-pytorch-dependencies-installtorch-got-unexpected-keyword-argument-torchvisionversionrequirement/46911)

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**Author:** [@Madison\_Golledge](https://discourse.slicer.org/u/Madison_Golledge)\
**Replies:** 9\
**Last updated:** [May 5, 2026, 11:40am UTC](https://discourse.slicer.org/t/totalsegmentator-fails-to-install-pytorch-dependencies-installtorch-got-unexpected-keyword-argument-torchvisionversionrequirement/46911 "2026-05-05T11:40:08Z")

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I’m trying to use the TotalSegmentator extension in 3D Slicer for segmenting an MRI dataset, but I’m running into a consistent error during the dependency installation step. When clicking “Apply” in the TotalSegmentator…

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## [Create of the new preset in ASD/VSD device simulator topic](https://discourse.slicer.org/t/create-of-the-new-preset-in-asd-vsd-device-simulator-topic/46925)

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**Author:** [@Kamil.Kadyrov](https://discourse.slicer.org/u/Kamil.Kadyrov)\
**Replies:** 0\
**Last updated:** [May 5, 2026, 10:19am UTC](https://discourse.slicer.org/t/create-of-the-new-preset-in-asd-vsd-device-simulator-topic/46925 "2026-05-05T10:19:01Z")

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Hi everybody! Does anyone know how to add my own preset into the custom device section inside ASD/VSD device simulator topic? Is there a possibility to do it whatsoever?

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## [Pencil tool not visible on some slices, but works in 3D view](https://discourse.slicer.org/t/pencil-tool-not-visible-on-some-slices-but-works-in-3d-view/46908)

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**Author:** [@Alexander\_Schirkow](https://discourse.slicer.org/u/Alexander_Schirkow)\
**Replies:** 2\
**Last updated:** [May 5, 2026, 3:16am UTC](https://discourse.slicer.org/t/pencil-tool-not-visible-on-some-slices-but-works-in-3d-view/46908 "2026-05-05T03:16:25Z")

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Hello, I encountered an issue when using the Pencil tool in Segment Editor. On some slices and with certain datasets, the pencil strokes are not visible in the 2D views (axial/sagittal/coronal). However, in the 3D view …

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## [Paint brush requires large movement before stroke begins — Wacom Intuos M tablet](https://discourse.slicer.org/t/paint-brush-requires-large-movement-before-stroke-begins-wacom-intuos-m-tablet/46879)

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**Author:** [@Alexander\_Pfeifer](https://discourse.slicer.org/u/Alexander_Pfeifer)\
**Replies:** 2\
**Last updated:** [May 4, 2026, 7:57pm UTC](https://discourse.slicer.org/t/paint-brush-requires-large-movement-before-stroke-begins-wacom-intuos-m-tablet/46879 "2026-05-04T19:57:31Z")

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Operating system: Windows Slicer version: 5.10.0 When using the Paint effect in Segment Editor with a Wacom Intuos M tablet on Windows, the brush requires a large physical movement before it starts painting. A short mo…

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## [Sidexis 4 and 3D Slicer?](https://discourse.slicer.org/t/sidexis-4-and-3d-slicer/46893)

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**Author:** [@drychen](https://discourse.slicer.org/u/drychen)\
**Replies:** 1\
**Last updated:** [May 4, 2026, 7:46pm UTC](https://discourse.slicer.org/t/sidexis-4-and-3d-slicer/46893 "2026-05-04T19:46:02Z")

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I can’t import the exported DICOM files from Sidexis 4 into my 3D slicer. I keep getting the following error message: 902: RawBlobs \[Scalar Volume\]: Reference image in series does not contain geometry information. Please…

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## [No linux preview build since 4/22](https://discourse.slicer.org/t/no-linux-preview-build-since-4-22/46889)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 2\
**Last updated:** [May 4, 2026, 7:30pm UTC](https://discourse.slicer.org/t/no-linux-preview-build-since-4-22/46889 "2026-05-04T19:30:42Z")

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I just downloaded the latest preview for Linux and it is dated 4/22. @Sam\_Horvath @ebrahim

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## [Visualization of continuous uncertainty maps in 3D Slicer (volume appears uniform color)](https://discourse.slicer.org/t/visualization-of-continuous-uncertainty-maps-in-3d-slicer-volume-appears-uniform-color/46892)

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**Author:** [@Alexia\_Canosa\_Rojo](https://discourse.slicer.org/u/Alexia_Canosa_Rojo)\
**Replies:** 4\
**Last updated:** [May 2, 2026, 3:21pm UTC](https://discourse.slicer.org/t/visualization-of-continuous-uncertainty-maps-in-3d-slicer-volume-appears-uniform-color/46892 "2026-05-02T15:21:55Z")

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Hi, I am trying to visualize a continuous uncertainty map (entropy-based) generated from a deep learning segmentation model in 3D Slicer. The NIfTI file contains floating-point values (not binary), with a range approxi…

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## [Recommendations for viewing and orienting 2D echocardiography slices in 3D viewer](https://discourse.slicer.org/t/recommendations-for-viewing-and-orienting-2d-echocardiography-slices-in-3d-viewer/46849)

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**Author:** [@aabrown100-git](https://discourse.slicer.org/u/aabrown100-git)\
**Replies:** 10\
**Last updated:** [May 1, 2026, 8:01pm UTC](https://discourse.slicer.org/t/recommendations-for-viewing-and-orienting-2d-echocardiography-slices-in-3d-viewer/46849 "2026-05-01T20:01:09Z")

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I have DICOM data containing 2D echocardiography time sequence. I want to visualize and orient these in the 3D viewer so that I can overlay them with 3D CT/MRI images from the same patient. What’s the best way to do this…

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## [how to convert from sideaxis-4 to standard DICOM format](https://discourse.slicer.org/t/how-to-convert-from-sideaxis-4-to-standard-dicom-format/40908)

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**Author:** [@ng0177](https://discourse.slicer.org/u/ng0177)\
**Replies:** 1\
**Last updated:** [May 1, 2026, 7:22am UTC](https://discourse.slicer.org/t/how-to-convert-from-sideaxis-4-to-standard-dicom-format/40908 "2026-05-01T07:22:52Z")

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Hello, is anyone aware of how to convert from their format to standard DICOM so it can be read by 3Dslicer? Apparently, they are using a wrapper… Thanks!

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## [Seeking Community Input on Upcoming trame‑slicer Applications](https://discourse.slicer.org/t/seeking-community-input-on-upcoming-trame-slicer-applications/46874)

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**Author:** [@Thibault\_Pelletier](https://discourse.slicer.org/u/Thibault_Pelletier)\
**Replies:** 2\
**Last updated:** [May 1, 2026, 4:02am UTC](https://discourse.slicer.org/t/seeking-community-input-on-upcoming-trame-slicer-applications/46874 "2026-05-01T04:02:59Z")

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Hi everyone! Following the discussions on the trame-slicer repo regarding Jupyter integration and first class citizen applications in trame-slicer we will be adding applications to the trame-slicer package starting the …

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## [slicer dashboard](https://discourse.slicer.org/t/slicer-dashboard/46328)

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**Author:** [@Fatima.k](https://discourse.slicer.org/u/Fatima.k)\
**Replies:** 5\
**Last updated:** [May 1, 2026, 3:58am UTC](https://discourse.slicer.org/t/slicer-dashboard/46328 "2026-05-01T03:58:02Z")

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Hi there, Is there any way/possibility that I can use slicer viewer in web-dashboard as well as import/call some of the extension into the dashboard without needing to install and import whole slicer app into the dashboa…

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## [How to show a transform in only one view](https://discourse.slicer.org/t/how-to-show-a-transform-in-only-one-view/46877)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 4\
**Last updated:** [April 30, 2026, 8:39pm UTC](https://discourse.slicer.org/t/how-to-show-a-transform-in-only-one-view/46877 "2026-04-30T20:39:35Z")

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I have a Displacement field Transform and I want to visualise it only in one 2D view. I couldn’t find it in the UI and I couldn’t figure out how to do it in python. Is there a way to do that?

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## [Steps for Glioma Perfusion (CBV) and Diffusion (ADC) Analysis](https://discourse.slicer.org/t/steps-for-glioma-perfusion-cbv-and-diffusion-adc-analysis/46880)

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**Author:** [@Edvinas\_Chaleckas](https://discourse.slicer.org/u/Edvinas_Chaleckas)\
**Replies:** 0\
**Last updated:** [April 30, 2026, 5:53pm UTC](https://discourse.slicer.org/t/steps-for-glioma-perfusion-cbv-and-diffusion-adc-analysis/46880 "2026-04-30T17:53:11Z")

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Hello, I am a new 3D Slicer user and I am working on a project to analyze 3D glioma datasets. My goal is to calculate: Perfusion parameters, specifically Cerebral Blood Volume (CBV). Diffusion parameters, specific…

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## [Tractography ROI selection via script](https://discourse.slicer.org/t/tractography-roi-selection-via-script/36466)

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**Author:** [@fcruz](https://discourse.slicer.org/u/fcruz)\
**Replies:** 1\
**Last updated:** [April 30, 2026, 1:14pm UTC](https://discourse.slicer.org/t/tractography-roi-selection-via-script/36466 "2026-04-30T13:14:02Z")

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Operating system: Ubutu 22.04 Slicer version: 5.6.2 I would like to automatically extract fiber bundles from a UKF tractography vtk file using the Tractography ROI selection module. I have a label map that contains Fre…

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## [how to edit an obj file ](https://discourse.slicer.org/t/how-to-edit-an-obj-file/46869)

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**Author:** [@ellenku](https://discourse.slicer.org/u/ellenku)\
**Replies:** 2\
**Last updated:** [April 30, 2026, 10:24am UTC](https://discourse.slicer.org/t/how-to-edit-an-obj-file/46869 "2026-04-30T10:24:37Z")

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Hello! I have a bunch of cranial endocast saved in obj form. I want to try to section of the cerebellum region, and I think this should be possible in maybe segment editor. However, since the obj is mesh model, i cannot…

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## [Problem fiducial registration wizard](https://discourse.slicer.org/t/problem-fiducial-registration-wizard/46875)

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**Author:** [@Zaky\_Alfarizi](https://discourse.slicer.org/u/Zaky_Alfarizi)\
**Replies:** 0\
**Last updated:** [April 30, 2026, 7:48am UTC](https://discourse.slicer.org/t/problem-fiducial-registration-wizard/46875 "2026-04-30T07:48:04Z")

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Check this out. What happen to my system? why the S in RAS have number ±600? i have doin pivot calibration with rmse 0.3 stylus to stylus tip. whats wrong? so its make the transform matrix IS have number ±1300, please ex…

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## [Segementing mri doesnt do continous layer](https://discourse.slicer.org/t/segementing-mri-doesnt-do-continous-layer/46868)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 1\
**Last updated:** [April 29, 2026, 8:57pm UTC](https://discourse.slicer.org/t/segementing-mri-doesnt-do-continous-layer/46868 "2026-04-29T20:57:49Z")

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im experimenting with mri segmentation . sometimes it works fine but started to get this error more often . when i draw or pain i get some area segmented some are not .

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## [Surface Toolbox Clean model does not remove unconnected points](https://discourse.slicer.org/t/surface-toolbox-clean-model-does-not-remove-unconnected-points/46873)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 0\
**Last updated:** [April 29, 2026, 8:44pm UTC](https://discourse.slicer.org/t/surface-toolbox-clean-model-does-not-remove-unconnected-points/46873 "2026-04-29T20:44:10Z")

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I have a model which has points which are not part of any triangles. When I use vtkImplicitPolyDataDistance filters, distances to these points can come back as always negative, which is supposed to indicate that the pro…

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## [Question on Contour Editing](https://discourse.slicer.org/t/question-on-contour-editing/38230)

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**Author:** [@alientex](https://discourse.slicer.org/u/alientex)\
**Replies:** 19\
**Last updated:** [April 29, 2026, 7:29pm UTC](https://discourse.slicer.org/t/question-on-contour-editing/38230 "2026-04-29T19:29:12Z")

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Hello, Once a contour is available, I would like to manually adjust it by grabbing and moving the contour points. Additionally, a magnetic effect should be there to pull the constructed contour closer to the surface. I…

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## [MONAI 3DSeg - Brain Glioma segmentation error](https://discourse.slicer.org/t/monai-3dseg-brain-glioma-segmentation-error/46870)

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**Author:** [@Samim\_Zaheer](https://discourse.slicer.org/u/Samim_Zaheer)\
**Replies:** 1\
**Last updated:** [April 29, 2026, 5:09pm UTC](https://discourse.slicer.org/t/monai-3dseg-brain-glioma-segmentation-error/46870 "2026-04-29T17:09:05Z")

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Operating system: macOS Slicer version: 5.10.0 Expected behavior: Glioma Segmentation Actual behavior: RuntimeError: affine matrix of all images should be the same for channel-wise concatenation.

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## [Slicer 5.10 crashes when Ctrl + click-and-drag adjusts segment opacity](https://discourse.slicer.org/t/slicer-5-10-crashes-when-ctrl-click-and-drag-adjusts-segment-opacity/46719)

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**Author:** [@MaxVs](https://discourse.slicer.org/u/MaxVs)\
**Replies:** 8\
**Last updated:** [April 28, 2026, 8:09pm UTC](https://discourse.slicer.org/t/slicer-5-10-crashes-when-ctrl-click-and-drag-adjusts-segment-opacity/46719 "2026-04-28T20:09:01Z")

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Hi, I’ve encountered couple of crashes in a last few weeks. Everything works fine, and then the whole application closes up. It usually happnes when I change the opacity of the whole segmentation by holding left ctrl and…

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## [I want to create a closed contour from hdr/img data](https://discourse.slicer.org/t/i-want-to-create-a-closed-contour-from-hdr-img-data/46860)

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**Author:** [@PetrKryslUCSD](https://discourse.slicer.org/u/PetrKryslUCSD)\
**Replies:** 1\
**Last updated:** [April 28, 2026, 4:08pm UTC](https://discourse.slicer.org/t/i-want-to-create-a-closed-contour-from-hdr-img-data/46860 "2026-04-28T16:08:42Z")

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Right now the contour runs into the boundary of the box, and it is then open. One thing that I could think of was to either surround the current volume with a layer of zero voxels (which would close the contour), or modi…

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## [Is it possible to use Slicer to directly edit a 3D voxel volume?](https://discourse.slicer.org/t/is-it-possible-to-use-slicer-to-directly-edit-a-3d-voxel-volume/46859)

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**Author:** [@PetrKryslUCSD](https://discourse.slicer.org/u/PetrKryslUCSD)\
**Replies:** 1\
**Last updated:** [April 28, 2026, 4:06pm UTC](https://discourse.slicer.org/t/is-it-possible-to-use-slicer-to-directly-edit-a-3d-voxel-volume/46859 "2026-04-28T16:06:24Z")

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Has this been already solved or at least discussed? Such as inserting “voxelized” primitives (sphere, cylinder, block, …) and combining them in various ways (boolean ops?).

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## [2026.04.28 Weekly Meeting](https://discourse.slicer.org/t/2026-04-28-weekly-meeting/46826)

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**Author:** [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Replies:** 3\
**Last updated:** [April 28, 2026, 2:14pm UTC](https://discourse.slicer.org/t/2026-04-28-weekly-meeting/46826 "2026-04-28T14:14:25Z")

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Title: 2026.04.28 Weekly Meeting Next Tuesday, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET. Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware A…

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## [SlicerHeart and 2D echo](https://discourse.slicer.org/t/slicerheart-and-2d-echo/39844)

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**Author:** [@Chuns\_SS](https://discourse.slicer.org/u/Chuns_SS)\
**Replies:** 1\
**Last updated:** [April 28, 2026, 12:03am UTC](https://discourse.slicer.org/t/slicerheart-and-2d-echo/39844 "2026-04-28T00:03:02Z")

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I have a series of 99 dicom images of a echocardiogram but am having issue getiing anything to work in slicer heart module. all files start with 1: US ECHO 2D MM SPEC COL QUANT-EC \[01-99\]

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## [Volume Property json file is incorrectly saved](https://discourse.slicer.org/t/volume-property-json-file-is-incorrectly-saved/46834)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 1\
**Last updated:** [April 27, 2026, 10:07pm UTC](https://discourse.slicer.org/t/volume-property-json-file-is-incorrectly-saved/46834 "2026-04-27T22:07:15Z")

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I Load a 16bit unsigned dataset, set up its volume rendering properties such as Use shift slider Change the material preset to a non-default one (the second brightest) Remove some points from the scalar mapping and shi…

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## [SlicerJupyter not available for latest version?](https://discourse.slicer.org/t/slicerjupyter-not-available-for-latest-version/41791)

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**Author:** [@Juergen](https://discourse.slicer.org/u/Juergen)\
**Replies:** 11\
**Last updated:** [April 27, 2026, 2:41pm UTC](https://discourse.slicer.org/t/slicerjupyter-not-available-for-latest-version/41791 "2026-04-27T14:41:57Z")

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Hello, I just noticed that SlicerJupyter was not available as an extension for both the latest stable version and the latest unstable version. What are the plans moving forward? Will SlicerJupyter work? SlicerJupyter i…

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## [SlicerQR Development](https://discourse.slicer.org/t/slicerqr-development/15954)

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**Author:** [@spycolyf](https://discourse.slicer.org/u/spycolyf)\
**Replies:** 155\
**Last updated:** [April 27, 2026, 9:56am UTC](https://discourse.slicer.org/t/slicerqr-development/15954 "2026-04-27T09:56:37Z")

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@jcfr @pieper @lassoan @superlib Good Morning. I’m starting to think about how to deploy SlicerQR to 25,000 PCs across the Mayo Enterprise. After building the package, it consists of over 7000 files at a total size of o…

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