# Latest

**URL:** https://discourse.slicer.org/latest.md?page=37

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

**Page:** 38

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## [Optimal seam stitching of ultrasound images](https://discourse.slicer.org/t/optimal-seam-stitching-of-ultrasound-images/44690)

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**Author:** [@dzenanz](https://discourse.slicer.org/u/dzenanz)\
**Replies:** 0\
**Last updated:** [October 7, 2025, 8:46pm UTC](https://discourse.slicer.org/t/optimal-seam-stitching-of-ultrasound-images/44690 "2025-10-07T20:46:36Z")

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Combining two partly overlapping ultrasound images in usual ways typically incurs blurring or a noticeable seem. Some methods to avoid this have been published. Is there any open source implementation? Ideally implemente…

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## [2025.09.30 Weekly Meeting](https://discourse.slicer.org/t/2025-09-30-weekly-meeting/44628)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [October 7, 2025, 2:02pm UTC](https://discourse.slicer.org/t/2025-09-30-weekly-meeting/44628 "2025-10-07T14:02:51Z")

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Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET. a Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread t…

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## [Question PlaneNode Normal](https://discourse.slicer.org/t/question-planenode-normal/44685)

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**Author:** [@evaherbst](https://discourse.slicer.org/u/evaherbst)\
**Replies:** 2\
**Last updated:** [October 7, 2025, 1:37pm UTC](https://discourse.slicer.org/t/question-planenode-normal/44685 "2025-10-07T13:37:59Z")

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I am currently creating planes based on 3 control points as follows: planeNode = slicer.mrmlScene.AddNewNodeByClass(“vtkMRMLMarkupsPlaneNode”, “myPlaneNode") planeNode.SetPlaneType(2) # PlaneTypeThreePoints planeNod…

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## [Adjust segmentation transparency of orthoslices and volumes independently for better contrast in 3d view](https://discourse.slicer.org/t/adjust-segmentation-transparency-of-orthoslices-and-volumes-independently-for-better-contrast-in-3d-view/44653)

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**Author:** [@sulli419](https://discourse.slicer.org/u/sulli419)\
**Replies:** 5\
**Last updated:** [October 4, 2025, 8:32pm UTC](https://discourse.slicer.org/t/adjust-segmentation-transparency-of-orthoslices-and-volumes-independently-for-better-contrast-in-3d-view/44653 "2025-10-04T20:32:31Z")

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When you select the “eye” to show an orthogonal slice in the 3D view, in the 3d viewer, it would nice if the segmentations could be shown as solid colors and the 3D segment volume could be translucent. This would give a…

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## [How to copy a segmentation from one slice to the next in Segment Editor?](https://discourse.slicer.org/t/how-to-copy-a-segmentation-from-one-slice-to-the-next-in-segment-editor/44650)

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**Author:** [@labixin](https://discourse.slicer.org/u/labixin)\
**Replies:** 3\
**Last updated:** [October 3, 2025, 3:36am UTC](https://discourse.slicer.org/t/how-to-copy-a-segmentation-from-one-slice-to-the-next-in-segment-editor/44650 "2025-10-03T03:36:30Z")

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Hello, I am currently using the Segment Editor module in 3D Slicer (version 5.6.1, Windows 11) to edit liver contours. I would like to ask: if I have already defined the contour on one slice, is it possible to directly …

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## [How to understand SegmentMesher with Image spacing and Image Dimensions](https://discourse.slicer.org/t/how-to-understand-segmentmesher-with-image-spacing-and-image-dimensions/44632)

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**Author:** [@Shajia\_Ali](https://discourse.slicer.org/u/Shajia_Ali)\
**Replies:** 1\
**Last updated:** [October 2, 2025, 9:10pm UTC](https://discourse.slicer.org/t/how-to-understand-segmentmesher-with-image-spacing-and-image-dimensions/44632 "2025-10-02T21:10:04Z")

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Hello everyone, I am using SegmentMesher for meshing, and so far things are going well. However, I am still trying to understand how image dimensions and voxel spacing influence the element size and the total number of …

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## [Understanding CPU cores/threads and GPU roles in 3D Slicer workflows](https://discourse.slicer.org/t/understanding-cpu-cores-threads-and-gpu-roles-in-3d-slicer-workflows/44591)

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**Author:** [@JaredAmudeo](https://discourse.slicer.org/u/JaredAmudeo)\
**Replies:** 1\
**Last updated:** [October 2, 2025, 8:57pm UTC](https://discourse.slicer.org/t/understanding-cpu-cores-threads-and-gpu-roles-in-3d-slicer-workflows/44591 "2025-10-02T20:57:31Z")

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Hello, I’m not sure if this is the right place to ask, but I would like to know where I could learn more about the hardware and how it is involved in the different modules. From what I understand, the GPU is mainly used…

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## [Sudden crash during save](https://discourse.slicer.org/t/sudden-crash-during-save/44649)

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**Author:** [@dfajtai](https://discourse.slicer.org/u/dfajtai)\
**Replies:** 2\
**Last updated:** [October 2, 2025, 2:29pm UTC](https://discourse.slicer.org/t/sudden-crash-during-save/44649 "2025-10-02T14:29:51Z")

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Dear Slicer Developers, Please accept my greatest gratitude for developing such a marvelous software, one that excels at crashing right when saving, while also making sure to destroy everything I had saved before. That …

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## [Model to Model Distance in tubular structure - Intestin wall](https://discourse.slicer.org/t/model-to-model-distance-in-tubular-structure-intestin-wall/44631)

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**Author:** [@winter](https://discourse.slicer.org/u/winter)\
**Replies:** 5\
**Last updated:** [October 2, 2025, 9:06am UTC](https://discourse.slicer.org/t/model-to-model-distance-in-tubular-structure-intestin-wall/44631 "2025-10-02T09:06:01Z")

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Dear Slicer Community, I am working on a heat map representation of the thickness of colon wall in mice. I Segmented the lumen, the colon wall and the area outside the outer colon wall, and exported the segments to mod…

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## [Unable to load wrist, knee or ankle data for autoscoper tutorial 1](https://discourse.slicer.org/t/unable-to-load-wrist-knee-or-ankle-data-for-autoscoper-tutorial-1/44259)

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**Author:** [@delaneyem](https://discourse.slicer.org/u/delaneyem)\
**Replies:** 3\
**Last updated:** [October 2, 2025, 12:38am UTC](https://discourse.slicer.org/t/unable-to-load-wrist-knee-or-ankle-data-for-autoscoper-tutorial-1/44259 "2025-10-02T00:38:04Z")

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Hello! I am unable to load the sample data for tutorial one. I have followed all installation steps and the tutorial. The data appears to be downloaded in the same cache the autoscoper tool pull from, but when I try to u…

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## [Batch dental segmentator: No valid volume file found in the folder](https://discourse.slicer.org/t/batch-dental-segmentator-no-valid-volume-file-found-in-the-folder/44633)

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**Author:** [@Chanrury\_s](https://discourse.slicer.org/u/Chanrury_s)\
**Replies:** 4\
**Last updated:** [October 1, 2025, 8:47pm UTC](https://discourse.slicer.org/t/batch-dental-segmentator-no-valid-volume-file-found-in-the-folder/44633 "2025-10-01T20:47:23Z")

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Hello! I’m having problems with the “AutomatedDentalTools” extension. AutomatedDentalTools contains the “BatchDentalSegmentator” module. When I select a date folder, an error appears (No valid volume file found in the…

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## [Volume Rendering Module Presets Thumbnails](https://discourse.slicer.org/t/volume-rendering-module-presets-thumbnails/44641)

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**Author:** [@Esteban\_Barreiro](https://discourse.slicer.org/u/Esteban_Barreiro)\
**Replies:** 4\
**Last updated:** [October 1, 2025, 1:02pm UTC](https://discourse.slicer.org/t/volume-rendering-module-presets-thumbnails/44641 "2025-10-01T13:02:49Z")

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Hi! I notice that in the past few versions of 3dSlicer, in the Volume Rendering Module, the Presets thumbnails doesn’t show in the GUI as in the past.

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## [Unable to Import Lumafield NRRD file](https://discourse.slicer.org/t/unable-to-import-lumafield-nrrd-file/44566)

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**Author:** [@mchon](https://discourse.slicer.org/u/mchon)\
**Replies:** 5\
**Last updated:** [September 30, 2025, 6:01pm UTC](https://discourse.slicer.org/t/unable-to-import-lumafield-nrrd-file/44566 "2025-09-30T18:01:40Z")

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Operating system: Windows 10 Slicer version: 5.8.1 Expected behavior: Load NRRD file as volume Actual behavior: Error loading data. Does not recognize NRRD file. We use a X-Ray CT from a local startup called Lumafiel…

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## [I can't set the favorites in the menu barr](https://discourse.slicer.org/t/i-cant-set-the-favorites-in-the-menu-barr/44570)

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**Author:** [@philippepellerin](https://discourse.slicer.org/u/philippepellerin)\
**Replies:** 3\
**Last updated:** [September 30, 2025, 2:22pm UTC](https://discourse.slicer.org/t/i-cant-set-the-favorites-in-the-menu-barr/44570 "2025-09-30T14:22:43Z")

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In the 5.9.0-2025-09-20 issue, I am unable to set favourite modules in the menu.

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## [2025.09.23 Weekly Meeting](https://discourse.slicer.org/t/2025-09-23-weekly-meeting/44550)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [September 30, 2025, 1:33pm UTC](https://discourse.slicer.org/t/2025-09-23-weekly-meeting/44550 "2025-09-30T13:33:25Z")

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Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET. a Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread t…

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## [Convert from spatial registration to shifts](https://discourse.slicer.org/t/convert-from-spatial-registration-to-shifts/44590)

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**Author:** [@G\_Tom](https://discourse.slicer.org/u/G_Tom)\
**Replies:** 3\
**Last updated:** [September 30, 2025, 10:13am UTC](https://discourse.slicer.org/t/convert-from-spatial-registration-to-shifts/44590 "2025-09-30T10:13:13Z")

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Hello, This is for the the experts in image registration, particularly CT to CBCT registration to obtain table shifts, Typically the CBCT is acquired on the day of treatment with the patient on the bed and registered w…

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## [How do I integrate these installed extensions and python into the EXE installation package?](https://discourse.slicer.org/t/how-do-i-integrate-these-installed-extensions-and-python-into-the-exe-installation-package/44524)

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**Author:** [@bulala](https://discourse.slicer.org/u/bulala)\
**Replies:** 5\
**Last updated:** [September 30, 2025, 1:32am UTC](https://discourse.slicer.org/t/how-do-i-integrate-these-installed-extensions-and-python-into-the-exe-installation-package/44524 "2025-09-30T01:32:30Z")

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Operating system:Windows 11 Slicer version:5.8.1 Expected behavior: Actual behavior: Thank you 3D Slicer for providing such a handy medical imaging software. Due to network issues, I installed some extension packa…

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## [TotalSegmentator Extra Task License Not Saved in Slicer 6.2](https://discourse.slicer.org/t/totalsegmentator-extra-task-license-not-saved-in-slicer-6-2/35622)

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**Author:** [@evaherbst](https://discourse.slicer.org/u/evaherbst)\
**Replies:** 13\
**Last updated:** [September 30, 2025, 1:16am UTC](https://discourse.slicer.org/t/totalsegmentator-extra-task-license-not-saved-in-slicer-6-2/35622 "2025-09-30T01:16:42Z")

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Hi all, I added the license for the extra tasks for TotalSegmentator as I did in previous versions. The license is added but I get prompted to restart slicer, and after restarting, the license is gone again (whereas pr…

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## [how does vmtksurfaceprojection work](https://discourse.slicer.org/t/how-does-vmtksurfaceprojection-work/44629)

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**Author:** [@furiabuia](https://discourse.slicer.org/u/furiabuia)\
**Replies:** 0\
**Last updated:** [September 29, 2025, 11:48pm UTC](https://discourse.slicer.org/t/how-does-vmtksurfaceprojection-work/44629 "2025-09-29T23:48:02Z")

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Hi, I’m new to vmtk and I was trying to use vmtksurfaceprojection to project coordinates points of a centerline to another centerline. The problem is that what I obtain in output is a centerline with the same geometry an…

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## [3D slicer not responding - Found unusual solution](https://discourse.slicer.org/t/3d-slicer-not-responding-found-unusual-solution/44603)

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**Author:** [@PiasTanmoy](https://discourse.slicer.org/u/PiasTanmoy)\
**Replies:** 4\
**Last updated:** [September 29, 2025, 5:54pm UTC](https://discourse.slicer.org/t/3d-slicer-not-responding-found-unusual-solution/44603 "2025-09-29T17:54:48Z")

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I have been struggling with Slicer not responding for the last few weeks and finally found a working solution for my case. System info: Windows 11, Slicer 5.8 Solution: Remove your Slicer settings directory (for exampl…

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## [Voxel-base registration?](https://discourse.slicer.org/t/voxel-base-registration/44617)

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**Author:** [@Sule](https://discourse.slicer.org/u/Sule)\
**Replies:** 3\
**Last updated:** [September 29, 2025, 3:21pm UTC](https://discourse.slicer.org/t/voxel-base-registration/44617 "2025-09-29T15:21:55Z")

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I’d like to make superimposition these 3D views but i couldnt do it whatever i tried. Can you help me please?

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## [Issues with multiple labels and masks overlapping in Monailabel](https://discourse.slicer.org/t/issues-with-multiple-labels-and-masks-overlapping-in-monailabel/44448)

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**Author:** [@koumeasa](https://discourse.slicer.org/u/koumeasa)\
**Replies:** 1\
**Last updated:** [September 29, 2025, 9:29am UTC](https://discourse.slicer.org/t/issues-with-multiple-labels-and-masks-overlapping-in-monailabel/44448 "2025-09-29T09:29:51Z")

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Hey everyone, I’m labeling brain segments in MONAILabel. The masks / ROIs used as input for Monailabel are a subselection extracted by slicerio.extract\_segments() function from a 3DSlicer Segmentation node. I modified …

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## [Fail to instantiate module "vtkvmtk"](https://discourse.slicer.org/t/fail-to-instantiate-module-vtkvmtk/35681)

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**Author:** [@michaelli](https://discourse.slicer.org/u/michaelli)\
**Replies:** 1\
**Last updated:** [September 29, 2025, 2:29am UTC](https://discourse.slicer.org/t/fail-to-instantiate-module-vtkvmtk/35681 "2025-09-29T02:29:07Z")

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I have installed the extension SlicerVMTK and restarted slicer 3d. This also happened to v5.7.0, v5.6.0, and v5.4.0 on Windows 10. So I installed the laterest version, v5.7.0-2024-04-19. But the error is the same. I ca…

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## [Creating ROI box markups in image coordinates (rather than anatomical coordinates)](https://discourse.slicer.org/t/creating-roi-box-markups-in-image-coordinates-rather-than-anatomical-coordinates/43393)

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**Author:** [@tvercaut](https://discourse.slicer.org/u/tvercaut)\
**Replies:** 12\
**Last updated:** [September 28, 2025, 4:20pm UTC](https://discourse.slicer.org/t/creating-roi-box-markups-in-image-coordinates-rather-than-anatomical-coordinates/43393 "2025-09-28T16:20:01Z")

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Hi, I am interested in getting 3D box annotations in MRI data. ROI markups appear to be a good fit for this but the current behaviour is counterintuitive to users. In particular, they got confused by getting forced into…

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## [Resampling a linear transformation](https://discourse.slicer.org/t/resampling-a-linear-transformation/42916)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 7\
**Last updated:** [September 27, 2025, 8:13pm UTC](https://discourse.slicer.org/t/resampling-a-linear-transformation/42916 "2025-09-27T20:13:20Z")

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In the recent versions of Slicer, I am having a hard time exporting a resampled volume from a linear transform. Hardening simply changes the image direction matrix, so does the crop volume (when the image is under a line…

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## [Cant get rid of red window frame](https://discourse.slicer.org/t/cant-get-rid-of-red-window-frame/44606)

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**Author:** [@Hannnonk](https://discourse.slicer.org/u/Hannnonk)\
**Replies:** 2\
**Last updated:** [September 27, 2025, 3:21pm UTC](https://discourse.slicer.org/t/cant-get-rid-of-red-window-frame/44606 "2025-09-27T15:21:42Z")

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Even though it is turned off, I cant get rid of the red frame. Other windows are behaving normally. I have closed and reopened the program with no effect. thanks

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## [Compounded Markup for osteotomy](https://discourse.slicer.org/t/compounded-markup-for-osteotomy/44607)

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**Author:** [@Hans\_Peter](https://discourse.slicer.org/u/Hans_Peter)\
**Replies:** 2\
**Last updated:** [September 27, 2025, 3:12pm UTC](https://discourse.slicer.org/t/compounded-markup-for-osteotomy/44607 "2025-09-27T15:12:29Z")

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I want to perform a repeatable osteotomy with a certain shape using Slicer. Essentially I need a modified plane Markup, where the section crossing the bone is not simply horizontal, but for ex. a Z-shape pattern. As I am…

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## [Slicer script repository: module\_name.logic vs slicer.module\_name.widgetRepresentation().self().logic() vs slicer.modules.logic()](https://discourse.slicer.org/t/slicer-script-repository-module-name-logic-vs-slicer-module-name-widgetrepresentation-self-logic-vs-slicer-modules-logic/44454)

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**Author:** [@tas47](https://discourse.slicer.org/u/tas47)\
**Replies:** 4\
**Last updated:** [September 26, 2025, 7:30pm UTC](https://discourse.slicer.org/t/slicer-script-repository-module-name-logic-vs-slicer-module-name-widgetrepresentation-self-logic-vs-slicer-modules-logic/44454 "2025-09-26T19:30:46Z")

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Slicer API explanation: Hello all I have been trying to understand the Slicer API and I am having a lot of trouble understanding exactly how the ecosystem works. I want to specifically understand how the logic aspect …

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## [Showing 2D contour (slice intersection) of segmentation in 3D viewport](https://discourse.slicer.org/t/showing-2d-contour-slice-intersection-of-segmentation-in-3d-viewport/44598)

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**Author:** [@hfri](https://discourse.slicer.org/u/hfri)\
**Replies:** 2\
**Last updated:** [September 26, 2025, 7:26pm UTC](https://discourse.slicer.org/t/showing-2d-contour-slice-intersection-of-segmentation-in-3d-viewport/44598 "2025-09-26T19:26:26Z")

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Dear forum, I would like to display my segmentations as 2D outlines in the 3D view port. I have the NIfTI segmentations, but currently, I can only show the outlines in the 2D views (red, yellow, green). In the 3D viewpo…

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## [Exporting centreline ](https://discourse.slicer.org/t/exporting-centreline/44602)

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**Author:** [@Caitlin\_Goldfinch](https://discourse.slicer.org/u/Caitlin_Goldfinch)\
**Replies:** 1\
**Last updated:** [September 26, 2025, 7:19pm UTC](https://discourse.slicer.org/t/exporting-centreline/44602 "2025-09-26T19:19:26Z")

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I have created a centreline from a blood vessel segment. I want to export the centreline as an STL or OBJ file, so that I can import it into Fusion and use it as a path to extrude along. (Needing to 3d print this specifi…

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