# Latest

**URL:** https://discourse.slicer.org/latest.md?page=29

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

**Page:** 30

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## [There is an error when create a segment from numpy array](https://discourse.slicer.org/t/there-is-an-error-when-create-a-segment-from-numpy-array/45371)

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**Author:** [@zhutouzjq](https://discourse.slicer.org/u/zhutouzjq)\
**Replies:** 3\
**Last updated:** [December 9, 2025, 2:32am UTC](https://discourse.slicer.org/t/there-is-an-error-when-create-a-segment-from-numpy-array/45371 "2025-12-09T02:32:02Z")

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hellow, everyone. i want to creat a segment from a numpy array. and i found the python code in script repository as following. volumeNode = getNode('MRHead') segmentationNode = getNode('Segmentation') segmentId = segme…

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## [Creating a heatmap from corresponding points](https://discourse.slicer.org/t/creating-a-heatmap-from-corresponding-points/45397)

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**Author:** [@maas](https://discourse.slicer.org/u/maas)\
**Replies:** 1\
**Last updated:** [December 9, 2025, 2:20am UTC](https://discourse.slicer.org/t/creating-a-heatmap-from-corresponding-points/45397 "2025-12-09T02:20:02Z")

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Hallo! I’m trying to make a heatmap portraying the difference between a pre and post operation radius and ulna. I’ve managed to segment and overlay the bones. however I’m having issues creating the heatmap. When using t…

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## [Slicer ANTs Registration Failing](https://discourse.slicer.org/t/slicer-ants-registration-failing/45373)

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**Author:** [@ThomasVanParys](https://discourse.slicer.org/u/ThomasVanParys)\
**Replies:** 2\
**Last updated:** [December 8, 2025, 8:25pm UTC](https://discourse.slicer.org/t/slicer-ants-registration-failing/45373 "2025-12-08T20:25:43Z")

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Hello! I have tried to register two nrrd. volumes in ‘G:\\Kikopey\_project\\ANTs\_Volumes’ But I have come across this issue, and don’t fully undertsnad how to resolve it: Python 3.12.10 (main, Nov 10 2025, 02:47:38) \[MSC …

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## [PW Meeting Dec 9 2025](https://discourse.slicer.org/t/pw-meeting-dec-9-2025/45406)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [December 8, 2025, 8:06pm UTC](https://discourse.slicer.org/t/pw-meeting-dec-9-2025/45406 "2025-12-08T20:06:51Z")

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Dear Project Week community, The next project week preparation meeting will be tomorrow, Tuesday, Dec 9th, at 10:00 AM ET. (2025-12-09T15:00:00Z (UTC)) If you are interested in discussing a possible project, please use…

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## [New Feature: Independent Multi-Component Volume Rendering](https://discourse.slicer.org/t/new-feature-independent-multi-component-volume-rendering/45356)

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**Author:** [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Replies:** 3\
**Last updated:** [December 8, 2025, 5:44pm UTC](https://discourse.slicer.org/t/new-feature-independent-multi-component-volume-rendering/45356 "2025-12-08T17:44:25Z")

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3D Slicer can now independently render each component of multi-component volumes (such as 3D color Doppler ultrasound or multispectral microscopy images) in 3D views. A new json-based file format is introduced to store t…

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## [SAM 2 with video support](https://discourse.slicer.org/t/sam-2-with-video-support/37717)

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**Author:** [@dzenanz](https://discourse.slicer.org/u/dzenanz)\
**Replies:** 13\
**Last updated:** [December 7, 2025, 7:48am UTC](https://discourse.slicer.org/t/sam-2-with-video-support/37717 "2025-12-07T07:48:49Z")

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Meta’s Segment Anything Model 2 was announced last week. Are there any thoughts about its applicability to 3D images?

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## [Can not find 3DSlicer 5.9 version in preview releases, where is it available?](https://discourse.slicer.org/t/can-not-find-3dslicer-5-9-version-in-preview-releases-where-is-it-available/45242)

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**Author:** [@MaxVs](https://discourse.slicer.org/u/MaxVs)\
**Replies:** 3\
**Last updated:** [December 6, 2025, 6:35pm UTC](https://discourse.slicer.org/t/can-not-find-3dslicer-5-9-version-in-preview-releases-where-is-it-available/45242 "2025-12-06T18:35:23Z")

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I can not find 3DSlicer 5.9 version to download. Preview releases ends up on 5.8.1 version. There’s missing 5.9, where is it available? Thank you in advance.

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## [Extensions for stable are not building for macos](https://discourse.slicer.org/t/extensions-for-stable-are-not-building-for-macos/45381)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 2\
**Last updated:** [December 6, 2025, 4:51am UTC](https://discourse.slicer.org/t/extensions-for-stable-are-not-building-for-macos/45381 "2025-12-06T04:51:42Z")

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No Mac extensions. Windows and Linux seems fine: @Sam\_Horvath @ebrahim

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## [How can I change HU values into normal range?](https://discourse.slicer.org/t/how-can-i-change-hu-values-into-normal-range/45379)

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**Author:** [@ChrisMak](https://discourse.slicer.org/u/ChrisMak)\
**Replies:** 3\
**Last updated:** [December 5, 2025, 8:00pm UTC](https://discourse.slicer.org/t/how-can-i-change-hu-values-into-normal-range/45379 "2025-12-05T20:00:43Z")

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So, I have a bunch of dental cbct’s that are way too dark to be useful. The source data came from transforming Viewer vol files into nhdr/nrrd, and I’m guessing all calibration (window/level) is gone (or I can’t find it…

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## [Split multiframe dicom to series dicom code problem](https://discourse.slicer.org/t/split-multiframe-dicom-to-series-dicom-code-problem/45374)

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**Author:** [@Berk\_Gezgin](https://discourse.slicer.org/u/Berk_Gezgin)\
**Replies:** 3\
**Last updated:** [December 5, 2025, 2:38pm UTC](https://discourse.slicer.org/t/split-multiframe-dicom-to-series-dicom-code-problem/45374 "2025-12-05T14:38:36Z")

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Hello I wrote the following code. My goal here is to slice a single DICOM file and establish a standard. However, the sliced DICOM does not appear the same as the original DICOM in the slicer program. The positions and …

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## [Please advise - Slicer wiped older dicoms/segmentations when editing other files ](https://discourse.slicer.org/t/please-advise-slicer-wiped-older-dicoms-segmentations-when-editing-other-files/45349)

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**Author:** [@Sus\_Mu](https://discourse.slicer.org/u/Sus_Mu)\
**Replies:** 3\
**Last updated:** [December 5, 2025, 12:05am UTC](https://discourse.slicer.org/t/please-advise-slicer-wiped-older-dicoms-segmentations-when-editing-other-files/45349 "2025-12-05T00:05:52Z")

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I am working on a project with batches of segmentations. Batch A (prepared in October) and Batch B (prepared in November) were saved on my computer, without meaningful backup through TimeMachine or iCloud. I also have a…

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## [Segmentation does not fit into new geometry](https://discourse.slicer.org/t/segmentation-does-not-fit-into-new-geometry/35691)

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**Author:** [@SHMMU](https://discourse.slicer.org/u/SHMMU)\
**Replies:** 5\
**Last updated:** [December 4, 2025, 10:31pm UTC](https://discourse.slicer.org/t/segmentation-does-not-fit-into-new-geometry/35691 "2025-12-04T22:31:08Z")

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I have used total segmentator to aquire liver volume. However, when I go to export the file as NIFTI I get this error message, “the current segmentation does not completely fit into the new geometry. Do you want to cr…

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## [Reload a python module that failed the initialize without restarting Slicer](https://discourse.slicer.org/t/reload-a-python-module-that-failed-the-initialize-without-restarting-slicer/45366)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 1\
**Last updated:** [December 4, 2025, 5:14pm UTC](https://discourse.slicer.org/t/reload-a-python-module-that-failed-the-initialize-without-restarting-slicer/45366 "2025-12-04T17:14:47Z")

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Is there a way to reload a failed module without restarting the slicer? I can’t use the “Reload” button if the module hasn’t successfully initialized…

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## [What is the event to react to a point location being changed in a MarkupsNode/MarkupsLineNode?](https://discourse.slicer.org/t/what-is-the-event-to-react-to-a-point-location-being-changed-in-a-markupsnode-markupslinenode/45307)

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**Author:** [@Victor\_Wayne](https://discourse.slicer.org/u/Victor_Wayne)\
**Replies:** 3\
**Last updated:** [December 4, 2025, 10:34am UTC](https://discourse.slicer.org/t/what-is-the-event-to-react-to-a-point-location-being-changed-in-a-markupsnode-markupslinenode/45307 "2025-12-04T10:34:02Z")

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Hi, To react to a point location being changed in a MarkupsLineNode I’ve been using PointModifiedEvent and I am calling one function whenever the location of a point changes. However my callback function is being called…

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## [Purchasing a new workstation - what to look for?](https://discourse.slicer.org/t/purchasing-a-new-workstation-what-to-look-for/1805)

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**Author:** [@losp](https://discourse.slicer.org/u/losp)\
**Replies:** 6\
**Last updated:** [December 4, 2025, 3:44am UTC](https://discourse.slicer.org/t/purchasing-a-new-workstation-what-to-look-for/1805 "2025-12-04T03:44:11Z")

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Hi, Hoping to pick some brains about workstation specs - I’m tasked with purchasing a new one for our lab. We’ll be working with large DICOM data sets (up 2 - 2.5GB). These are full-body scans and we’re planning to do l…

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## [How to get the IJK coordinate of a fiducial node in 3d slicer development](https://discourse.slicer.org/t/how-to-get-the-ijk-coordinate-of-a-fiducial-node-in-3d-slicer-development/45362)

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**Author:** [@zhutouzjq](https://discourse.slicer.org/u/zhutouzjq)\
**Replies:** 3\
**Last updated:** [December 4, 2025, 3:17am UTC](https://discourse.slicer.org/t/how-to-get-the-ijk-coordinate-of-a-fiducial-node-in-3d-slicer-development/45362 "2025-12-04T03:17:32Z")

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thank the help provided by jamesobulter and cpinter, now i can successfully choose the fiducial in myself extension. but i fail to get the ijk coordinate of this fudicial node in my extension. i can only get the ras …

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## [Load vol file into 3D Slicer from Morita machine](https://discourse.slicer.org/t/load-vol-file-into-3d-slicer-from-morita-machine/4815)

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**Author:** [@sgbq](https://discourse.slicer.org/u/sgbq)\
**Replies:** 15\
**Last updated:** [December 4, 2025, 1:19am UTC](https://discourse.slicer.org/t/load-vol-file-into-3d-slicer-from-morita-machine/4815 "2025-12-04T01:19:46Z")

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Hi, I have a volume file named \*.vol from Morita machine. I am trying to convert it into a stl or obj file. It is not supported to be loaded by 3D Slicer right now. Is there any extension available? Or any other way to …

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## [Slicer build factory speed](https://discourse.slicer.org/t/slicer-build-factory-speed/45358)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 1\
**Last updated:** [December 3, 2025, 10:43pm UTC](https://discourse.slicer.org/t/slicer-build-factory-speed/45358 "2025-12-03T22:43:12Z")

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It is now past 12p on the west coast (meaning half of the workday in US is gone), and the builds for today’s slicers are still not finished (Macos extensions are still ongoing). I am looking at the logs and it is looking…

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## [Slicer 5.10: Summary, Highlights, and Changelog](https://discourse.slicer.org/t/slicer-5-10-summary-highlights-and-changelog/45224)

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**Author:** [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Replies:** 1\
**Last updated:** [December 3, 2025, 10:15pm UTC](https://discourse.slicer.org/t/slicer-5-10-summary-highlights-and-changelog/45224 "2025-12-03T22:15:11Z")

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Table of contents Summary Highlights Detailed Changelog 5.10.0 Summary The community of 3D Slicer developers is proud to announce that version 5.10 is now available for download. This release consists of a few new feat…

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## [Scene Views Modernization](https://discourse.slicer.org/t/scene-views-modernization/45359)

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**Author:** [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Replies:** 0\
**Last updated:** [December 3, 2025, 8:47pm UTC](https://discourse.slicer.org/t/scene-views-modernization/45359 "2025-12-03T20:47:43Z")

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What are Scene Views? Scene Views store snapshots of visualization settings of the scene content. By default, the scene view stores the current view layout, camera viewpoint in 3D views, slice position in 2D views, an…

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## [Writing a Scripted Subject Hierarchy Plugin -- documentation lacking](https://discourse.slicer.org/t/writing-a-scripted-subject-hierarchy-plugin-documentation-lacking/45252)

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**Author:** [@shai-ikko](https://discourse.slicer.org/u/shai-ikko)\
**Replies:** 2\
**Last updated:** [December 3, 2025, 4:18pm UTC](https://discourse.slicer.org/t/writing-a-scripted-subject-hierarchy-plugin-documentation-lacking/45252 "2025-12-03T16:18:40Z")

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Hi, Recently I’ve been writing an internal-use Subject Hierarchy plugin. I ran into some difficulties that stem, IMO, from lacking documentation, so I want to share what I’ve learned with a view to getting some comments…

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## [Seeking Assistance/Developers Setting Up Needle Tracking for Intel RealSense Camera](https://discourse.slicer.org/t/seeking-assistance-developers-setting-up-needle-tracking-for-intel-realsense-camera/37988)

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**Author:** [@rsp112](https://discourse.slicer.org/u/rsp112)\
**Replies:** 1\
**Last updated:** [December 3, 2025, 3:33pm UTC](https://discourse.slicer.org/t/seeking-assistance-developers-setting-up-needle-tracking-for-intel-realsense-camera/37988 "2025-12-03T15:33:20Z")

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Hi all! New here. I’m a student working on project whereby a needle must be tracked with a 3D model (of the needle) across different scan views in 3D slicer. I was wondering what modules/add-ons would be needed as well…

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## [Problem Reopening mrml](https://discourse.slicer.org/t/problem-reopening-mrml/45319)

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**Author:** [@acrespo](https://discourse.slicer.org/u/acrespo)\
**Replies:** 2\
**Last updated:** [December 3, 2025, 2:18pm UTC](https://discourse.slicer.org/t/problem-reopening-mrml/45319 "2025-12-03T14:18:38Z")

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Slicer Version: 5.8.1 Macbook Pro with 356 GB available Hello! I am very new to 3DSlicer and forums as a whole. I was hoping for some help as I have run into an issue with reuploading my segmented CT scan. I made sure …

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## [Failed to load the nnUNet segmentation result](https://discourse.slicer.org/t/failed-to-load-the-nnunet-segmentation-result/45350)

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**Author:** [@MoBakri](https://discourse.slicer.org/u/MoBakri)\
**Replies:** 1\
**Last updated:** [December 3, 2025, 1:48pm UTC](https://discourse.slicer.org/t/failed-to-load-the-nnunet-segmentation-result/45350 "2025-12-03T13:48:08Z")

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Dear freineds I got this bellow messege . how can I solve this issue ? Failed to load the segmentation. Something went wrong during the nnUNet processing. Please check the logs for potential errors and contact the libr…

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## [How to make the system use the NVIDIA GPU for Slicer (not the integrated Intel graphics)](https://discourse.slicer.org/t/how-to-make-the-system-use-the-nvidia-gpu-for-slicer-not-the-integrated-intel-graphics/45348)

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**Author:** [@johny723](https://discourse.slicer.org/u/johny723)\
**Replies:** 5\
**Last updated:** [December 1, 2025, 3:42am UTC](https://discourse.slicer.org/t/how-to-make-the-system-use-the-nvidia-gpu-for-slicer-not-the-integrated-intel-graphics/45348 "2025-12-01T03:42:38Z")

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Hi, I have a different problem. My setup: Intel Core i9-13980HX, 64 GB RAM DDR5, GeForce RTX 4090 - 16GB GDDR6 Windows 11 MetaQuest 3 128 I tried 5.8.1, 5.9. and 5.6.2 Slicer versions. I keep getting “incorrect grap…

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## [Shape analysis module](https://discourse.slicer.org/t/shape-analysis-module/45344)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 1\
**Last updated:** [December 3, 2025, 11:40am UTC](https://discourse.slicer.org/t/shape-analysis-module/45344 "2025-12-03T11:40:50Z")

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im wondering about the use of shape analysis module . i did fid documentation about usage . im not sure if i need to download spharm or not . how to run it etc .

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## [Schengen visa for Spain from USA](https://discourse.slicer.org/t/schengen-visa-for-spain-from-usa/45320)

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**Author:** [@Rahman](https://discourse.slicer.org/u/Rahman)\
**Replies:** 2\
**Last updated:** [December 3, 2025, 9:23am UTC](https://discourse.slicer.org/t/schengen-visa-for-spain-from-usa/45320 "2025-12-03T09:23:46Z")

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(Boston) Hi, my mentor advised me to attend the Slicer project week in Spain. Is there anyone here that applied for Schengen visa through BLS from USA before? Which visa is applicable for this case: tourist or busines…

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## [Irregular patch areas using VMTK](https://discourse.slicer.org/t/irregular-patch-areas-using-vmtk/45343)

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**Author:** [@svankuijk](https://discourse.slicer.org/u/svankuijk)\
**Replies:** 0\
**Last updated:** [December 3, 2025, 9:05am UTC](https://discourse.slicer.org/t/irregular-patch-areas-using-vmtk/45343 "2025-12-03T09:05:55Z")

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Dear all, I’m experiencing some issues with surface patching in 3D Slicer (using VMTK) during the post-processing of my carotid steady-state CFD simulations. The CFD run itself appears correct; the WSS output is proper…

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## [Morita .Vol import and nhdr conversion - slices out of order](https://discourse.slicer.org/t/morita-vol-import-and-nhdr-conversion-slices-out-of-order/42975)

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**Author:** [@ChrisMak](https://discourse.slicer.org/u/ChrisMak)\
**Replies:** 3\
**Last updated:** [December 2, 2025, 9:45pm UTC](https://discourse.slicer.org/t/morita-vol-import-and-nhdr-conversion-slices-out-of-order/42975 "2025-12-02T21:45:42Z")

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Hello! I am trying to import Morita .vol files into slicer, but I am getting out of order slices. I have followed the instructions found here as best as i can Could somebody help me troubleshoot this? problem - this…

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## [Model visibility in 2D - visible in saggital/coronal/3D but not axial](https://discourse.slicer.org/t/model-visibility-in-2d-visible-in-saggital-coronal-3d-but-not-axial/45333)

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**Author:** [@ckolluru](https://discourse.slicer.org/u/ckolluru)\
**Replies:** 0\
**Last updated:** [December 2, 2025, 5:57pm UTC](https://discourse.slicer.org/t/model-visibility-in-2d-visible-in-saggital-coronal-3d-but-not-axial/45333 "2025-12-02T17:57:40Z")

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I have two image stacks, a raw CT image and a corresponding distance map (same physical space, dimensions and spacing). I want to iteratively run vtkFlyingEdges2D on each slice of the distance map, with an isocontour val…

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