# Latest

**URL:** https://discourse.slicer.org/latest.md?page=28

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

**Page:** 29

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## [GPU based volume rendering fails if one dimension is more than 2000px](https://discourse.slicer.org/t/gpu-based-volume-rendering-fails-if-one-dimension-is-more-than-2000px/6546)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 33\
**Last updated:** [December 16, 2025, 6:16am UTC](https://discourse.slicer.org/t/gpu-based-volume-rendering-fails-if-one-dimension-is-more-than-2000px/6546 "2025-12-16T06:16:39Z")

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I can consistently reproduce this on Linux and Windows on various versions of Slicer. On Linux I can capture the error (not through Slicer, but from the log of the virtualGL) something to do with opengl\_max\_texture limi…

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## [Linear transform not appearing anymore as a driver in IGT Volume Reslicer Driver](https://discourse.slicer.org/t/linear-transform-not-appearing-anymore-as-a-driver-in-igt-volume-reslicer-driver/45497)

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**Author:** [@spichardo](https://discourse.slicer.org/u/spichardo)\
**Replies:** 1\
**Last updated:** [December 16, 2025, 5:35am UTC](https://discourse.slicer.org/t/linear-transform-not-appearing-anymore-as-a-driver-in-igt-volume-reslicer-driver/45497 "2025-12-16T05:35:57Z")

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Hi, I got this new issue in r5.10.0 of 3DSlicer and SlicerIGT (Revision: 71e2153). I create a new linear transformation to be used in the IGT Volume Reslicer Driver, but the linear transform does not appear in the list…

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## [PW Meeting Dec 16 2025](https://discourse.slicer.org/t/pw-meeting-dec-16-2025/45503)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 0\
**Last updated:** [December 15, 2025, 9:31pm UTC](https://discourse.slicer.org/t/pw-meeting-dec-16-2025/45503 "2025-12-15T21:31:47Z")

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Dear Project Week community, The next project week preparation meeting will be tomorrow Tuesday, Dec 16, at 10:00 AM ET. (2025-12-16T15:00:00Z (UTC)) If you are interested in discussing a possible project, please reply…

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## [PlusServerLauncher log displaying error concerning loading Echowave US settings](https://discourse.slicer.org/t/plusserverlauncher-log-displaying-error-concerning-loading-echowave-us-settings/45501)

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**Author:** [@daandevlieger2-alt](https://discourse.slicer.org/u/daandevlieger2-alt)\
**Replies:** 0\
**Last updated:** [December 15, 2025, 8:50pm UTC](https://discourse.slicer.org/t/plusserverlauncher-log-displaying-error-concerning-loading-echowave-us-settings/45501 "2025-12-15T20:50:12Z")

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Hi everyone We’re currently performing the 3D freehand ultrasound setup with 3D slicer (5.6.2), optitrack V120 trio (motive 3.1.0), echowowave 4.2.2 (Telemed Artus and LF11 probe) and PlusApp-2.9.0.20251014-Telemed-Win6…

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## [Interpreting ANTs registration warp field directionality](https://discourse.slicer.org/t/interpreting-ants-registration-warp-field-directionality/45467)

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**Author:** [@lucinda](https://discourse.slicer.org/u/lucinda)\
**Replies:** 3\
**Last updated:** [December 15, 2025, 7:07pm UTC](https://discourse.slicer.org/t/interpreting-ants-registration-warp-field-directionality/45467 "2025-12-15T19:07:22Z")

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Hi! I am aiming to use 3DSlicer to visualize the effects of 3d transforms created with antsRegistration. The registration didn’t include any rigid or affine stages, just one SyN stage. I’ve confirmed that the forward and…

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## [3D views synchronized using python](https://discourse.slicer.org/t/3d-views-synchronized-using-python/45423)

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**Author:** [@PimBeentjes](https://discourse.slicer.org/u/PimBeentjes)\
**Replies:** 5\
**Last updated:** [December 15, 2025, 1:46pm UTC](https://discourse.slicer.org/t/3d-views-synchronized-using-python/45423 "2025-12-15T13:46:01Z")

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I am doing an VR/AR project in 3Dslicer, we open multiple 3D views, for example the black views shown in the image. We also have the blue 3D. We can now synchronize them in slicer by pressing the two interlooped circles,…

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## [cbct distortion](https://discourse.slicer.org/t/cbct-distortion/45493)

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**Author:** [@seda\_ozdemir](https://discourse.slicer.org/u/seda_ozdemir)\
**Replies:** 1\
**Last updated:** [December 15, 2025, 1:36pm UTC](https://discourse.slicer.org/t/cbct-distortion/45493 "2025-12-15T13:36:32Z")

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In 3D Slicer version 5.10.0, when we load a CBCT with a 24 × 19 mm FOV, distortion occurs in the sagittal and coronal slice views. How can we resolve this issue?

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## [Auto skeleton to trajectory mv3d file](https://discourse.slicer.org/t/auto-skeleton-to-trajectory-mv3d-file/45487)

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**Author:** [@kuoi](https://discourse.slicer.org/u/kuoi)\
**Replies:** 0\
**Last updated:** [December 15, 2025, 5:18am UTC](https://discourse.slicer.org/t/auto-skeleton-to-trajectory-mv3d-file/45487 "2025-12-15T05:18:56Z")

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Hello, I am thinking that a commercial software called Avizo could do auto skeleton and output the trajectory as mv3d (MicroVisu3D) file mv3d header looks like this # MicroVisu3D file # Number of lines 1 # Number of …

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## [Trouble loading .nrrd file in Slicer 5.10.0 as sequence](https://discourse.slicer.org/t/trouble-loading-nrrd-file-in-slicer-5-10-0-as-sequence/45239)

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**Author:** [@gchampa](https://discourse.slicer.org/u/gchampa)\
**Replies:** 9\
**Last updated:** [December 15, 2025, 2:05am UTC](https://discourse.slicer.org/t/trouble-loading-nrrd-file-in-slicer-5-10-0-as-sequence/45239 "2025-12-15T02:05:14Z")

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when I try and import my .nrrd files as sequences (which they work in slicer 5.8.1) i get an error that slicer cannot read it. They will import as volume but then there is no way to change the colour map, i have tried th…

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## [Segmentation in Windows 11 extremely slow](https://discourse.slicer.org/t/segmentation-in-windows-11-extremely-slow/45473)

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**Author:** [@NSLight](https://discourse.slicer.org/u/NSLight)\
**Replies:** 1\
**Last updated:** [December 13, 2025, 6:51pm UTC](https://discourse.slicer.org/t/segmentation-in-windows-11-extremely-slow/45473 "2025-12-13T18:51:24Z")

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Operating System - Windows 11 Slicer 3D Version - 5.8.1 I have been everywhere on the forum, tried different solutions but nothing seems to work. I am working on a dataset (Brain Angio-CT) and trying to segment vessel…

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## [Need to hire for tutorial on volume measurements and cropping](https://discourse.slicer.org/t/need-to-hire-for-tutorial-on-volume-measurements-and-cropping/45474)

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**Author:** [@julietran98](https://discourse.slicer.org/u/julietran98)\
**Replies:** 0\
**Last updated:** [December 13, 2025, 5:52pm UTC](https://discourse.slicer.org/t/need-to-hire-for-tutorial-on-volume-measurements-and-cropping/45474 "2025-12-13T17:52:43Z")

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Hello! I am looking to hire someone for a tutorial for my research project. My project only has 3D models in STL format (no DICOM), and I need to crop certain aspects and measure the volume of of my region of interest. …

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## [Colorize Volume of a Sequence (sandbox)](https://discourse.slicer.org/t/colorize-volume-of-a-sequence-sandbox/45460)

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**Author:** [@Deep\_Learning](https://discourse.slicer.org/u/Deep_Learning)\
**Replies:** 0\
**Last updated:** [December 12, 2025, 7:00pm UTC](https://discourse.slicer.org/t/colorize-volume-of-a-sequence-sandbox/45460 "2025-12-12T19:00:47Z")

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Colorize Volume of a sequence is failing, 5.10.0 and some previous versions. Error message above. Works for a single frame. Was working for sequences some months ago.

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## [Can the nninteractive server environment be in a read-only folder](https://discourse.slicer.org/t/can-the-nninteractive-server-environment-be-in-a-read-only-folder/45451)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 3\
**Last updated:** [December 12, 2025, 4:43pm UTC](https://discourse.slicer.org/t/can-the-nninteractive-server-environment-be-in-a-read-only-folder/45451 "2025-12-12T16:43:59Z")

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During the workshops there are a lot of interest from biologists to use NNInteractive. However, it does take a while to set it up the server, particularly if you are not familiar that kind of thing. In MorphoCloud, we c…

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## [Where can I find a working Slicer 5.6.x portable package with SlicerLiver extension?](https://discourse.slicer.org/t/where-can-i-find-a-working-slicer-5-6-x-portable-package-with-slicerliver-extension/45445)

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**Author:** [@kzx](https://discourse.slicer.org/u/kzx)\
**Replies:** 2\
**Last updated:** [December 12, 2025, 2:34am UTC](https://discourse.slicer.org/t/where-can-i-find-a-working-slicer-5-6-x-portable-package-with-slicerliver-extension/45445 "2025-12-12T02:34:40Z")

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Hello Slicer developers, I am experiencing an issue where the SlicerLiver module does not appear in the module list, even though it is successfully installed through the Extensions Manager. My environment OS: Windows…

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## [How to cut a Model using a Grid Surface markup?](https://discourse.slicer.org/t/how-to-cut-a-model-using-a-grid-surface-markup/45416)

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**Author:** [@GroadoSwaggins](https://discourse.slicer.org/u/GroadoSwaggins)\
**Replies:** 5\
**Last updated:** [December 12, 2025, 1:01am UTC](https://discourse.slicer.org/t/how-to-cut-a-model-using-a-grid-surface-markup/45416 "2025-12-12T01:01:48Z")

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tldr: I would like to cut a Model in “half” using a non-flat planar surface I created with Markup \> Geometric Surface Grid. Is it possible? Further explanation below. I have a CT scan asymmetrical brain Volume that I ha…

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## [Issues visualizing results in DentalModelSeg (Slicer 5.8) – segmentation runs but no output appears](https://discourse.slicer.org/t/issues-visualizing-results-in-dentalmodelseg-slicer-5-8-segmentation-runs-but-no-output-appears/45405)

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**Author:** [@Brendy\_Villanueva](https://discourse.slicer.org/u/Brendy_Villanueva)\
**Replies:** 1\
**Last updated:** [December 11, 2025, 8:38pm UTC](https://discourse.slicer.org/t/issues-visualizing-results-in-dentalmodelseg-slicer-5-8-segmentation-runs-but-no-output-appears/45405 "2025-12-11T20:38:13Z")

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Hello everyone, I am trying to segment teeth from STL dental models using DentalModelSeg, but I am running into visualization issues, and I would really appreciate some guidance. I used: 3D Slicer version 5.8 Den…

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## [3D volume from Tomo Set](https://discourse.slicer.org/t/3d-volume-from-tomo-set/45070)

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**Author:** [@jmac](https://discourse.slicer.org/u/jmac)\
**Replies:** 13\
**Last updated:** [December 11, 2025, 8:30pm UTC](https://discourse.slicer.org/t/3d-volume-from-tomo-set/45070 "2025-12-11T20:30:07Z")

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New to slicer via recommendation from colleague. Very nice tool. Trying to see a 3D volume of mouse from a tomosynthesis dataset (height stack of 24 slices). I know its not going to be a perfect 3D dataset but just wan…

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## [Low Framerate streaming NDI Lyra Transforms in Plus Server](https://discourse.slicer.org/t/low-framerate-streaming-ndi-lyra-transforms-in-plus-server/45434)

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**Author:** [@damparm](https://discourse.slicer.org/u/damparm)\
**Replies:** 2\
**Last updated:** [December 11, 2025, 4:19pm UTC](https://discourse.slicer.org/t/low-framerate-streaming-ndi-lyra-transforms-in-plus-server/45434 "2025-12-11T16:19:36Z")

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Hello My project is to track Telemed ultrasound using a recently purchased NDI Polaris Lyra tracker. So far PlusServer connects well with Telemed and the tracker, Images are moving in my Slicer scene. But the refreshme…

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## [Interaction Box for Transforms](https://discourse.slicer.org/t/interaction-box-for-transforms/45436)

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**Author:** [@Jane\_Hand](https://discourse.slicer.org/u/Jane_Hand)\
**Replies:** 2\
**Last updated:** [December 11, 2025, 1:57pm UTC](https://discourse.slicer.org/t/interaction-box-for-transforms/45436 "2025-12-11T13:57:54Z")

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I can’t figure out how to made my interaction display a box to more easily manipulate my models. I updated to 5.10. While I am able to move my models with the object on the screen, it only allows for local manipulatio…

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## [Undo Segment Changes in Extensions: MONAI label and nnInteractive](https://discourse.slicer.org/t/undo-segment-changes-in-extensions-monai-label-and-nninteractive/45427)

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**Author:** [@Deep\_Learning](https://discourse.slicer.org/u/Deep_Learning)\
**Replies:** 4\
**Last updated:** [December 10, 2025, 6:00pm UTC](https://discourse.slicer.org/t/undo-segment-changes-in-extensions-monai-label-and-nninteractive/45427 "2025-12-10T18:00:44Z")

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I am trying to understand the undo behavior when editing a segment by hand in extensions such as MONAI label or nnInteractive. I am talking about using the scissors or largest island in the “segment module” in these ext…

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## [Additional module path disappears after restart](https://discourse.slicer.org/t/additional-module-path-disappears-after-restart/45357)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 11\
**Last updated:** [December 10, 2025, 12:02am UTC](https://discourse.slicer.org/t/additional-module-path-disappears-after-restart/45357 "2025-12-10T00:02:25Z")

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I am adding a new module directory via application settings, but after restart, the added directory disappears. There are no errors relevant to this during application startup. I observe this with both 5.10 and nightly. …

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## [Reconstructing a skull fragment with SSM/PDM](https://discourse.slicer.org/t/reconstructing-a-skull-fragment-with-ssm-pdm/45365)

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**Author:** [@ThomasVanParys](https://discourse.slicer.org/u/ThomasVanParys)\
**Replies:** 28\
**Last updated:** [December 9, 2025, 5:52pm UTC](https://discourse.slicer.org/t/reconstructing-a-skull-fragment-with-ssm-pdm/45365 "2025-12-09T17:52:12Z")

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Hello! I am seeking advice on how to practically reconstruct a skull in order to calculate cranial capacity. The skull is a fragment (missing skull base and some parietal), estimated to be a 4 year old indiviual. I ha…

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## [Deformable model registration prototype](https://discourse.slicer.org/t/deformable-model-registration-prototype/45426)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 0\
**Last updated:** [December 9, 2025, 5:47pm UTC](https://discourse.slicer.org/t/deformable-model-registration-prototype/45426 "2025-12-09T17:47:32Z")

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I have enabled deformable model registration as fourth level of registration (scaling, rigid, affine) in FastModelAlign module of SlicerMorph extension. Like ALPACA, it uses the point cloud based registration via Coheren…

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## [2025.12.09 Weekly Meeting](https://discourse.slicer.org/t/2025-12-09-weekly-meeting/45408)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 2\
**Last updated:** [December 9, 2025, 5:24pm UTC](https://discourse.slicer.org/t/2025-12-09-weekly-meeting/45408 "2025-12-09T17:24:03Z")

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Tomorrow, we will be having our next weekly hangout at 11:00 AM ET until 12:00 PM ET. after the project week meetings. We will be re-using the same meeting link Anyone is welcome to join at this link: Launch Meeting - …

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## [Average mesh module](https://discourse.slicer.org/t/average-mesh-module/45422)

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**Author:** [@elisa](https://discourse.slicer.org/u/elisa)\
**Replies:** 0\
**Last updated:** [December 9, 2025, 3:49pm UTC](https://discourse.slicer.org/t/average-mesh-module/45422 "2025-12-09T15:49:33Z")

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Hi, I study imprints in ceramics and I want to reproduce a tool by averaging different meshes of the imprint. I used the average mesh module, selected my different meshes as inputs, creating a new model as output, but i…

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## [Totalsegmentator and monai segmentation](https://discourse.slicer.org/t/totalsegmentator-and-monai-segmentation/45090)

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**Author:** [@alex\_He](https://discourse.slicer.org/u/alex_He)\
**Replies:** 14\
**Last updated:** [December 9, 2025, 2:42pm UTC](https://discourse.slicer.org/t/totalsegmentator-and-monai-segmentation/45090 "2025-12-09T14:42:49Z")

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Hi I just updated to ed slicer 5.10.0 but I found that it is not compatible with totalsegmentator 2 and monai. May iknow why

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## [SlicerRT isocenter configuration](https://discourse.slicer.org/t/slicerrt-isocenter-configuration/45122)

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**Author:** [@Mafer\_Calix](https://discourse.slicer.org/u/Mafer_Calix)\
**Replies:** 1\
**Last updated:** [December 9, 2025, 12:19pm UTC](https://discourse.slicer.org/t/slicerrt-isocenter-configuration/45122 "2025-12-09T12:19:28Z")

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Hello. I need to know whether the isocenter for the slicerRT is fixed at 100 cm. Sure, in the software I can edit the isocenter position within the body and the SDD. But I need to know if the beam’s field defined in beam…

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## [How to correctly warp a CCT RTSTRUCT target volume to 4DCT after CCT→4DCT registration?](https://discourse.slicer.org/t/how-to-correctly-warp-a-cct-rtstruct-target-volume-to-4dct-after-cct-4dct-registration/45377)

<div class="topic-metadata">

**Author:** [@Huoqin\_Zhou](https://discourse.slicer.org/u/Huoqin_Zhou)\
**Replies:** 1\
**Last updated:** [December 9, 2025, 10:00am UTC](https://discourse.slicer.org/t/how-to-correctly-warp-a-cct-rtstruct-target-volume-to-4dct-after-cct-4dct-registration/45377 "2025-12-09T10:00:23Z")

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(Original post deleted upon author’s request to protect private information. -staff)

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## [Upper airway segmentator](https://discourse.slicer.org/t/upper-airway-segmentator/45413)

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**Author:** [@Noha\_Mansour](https://discourse.slicer.org/u/Noha_Mansour)\
**Replies:** 0\
**Last updated:** [December 9, 2025, 6:20am UTC](https://discourse.slicer.org/t/upper-airway-segmentator/45413 "2025-12-09T06:20:44Z")

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Need help with upper airway segmentation, need to just segment the oropharyngeal space only from full skull CBCT dicom & my problems or questions are: \_ can I crop the FOV 1stly to the oro pharyngeal area ? \_ how can I…

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## [Workflow Documentation](https://discourse.slicer.org/t/workflow-documentation/45385)

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**Author:** [@Tair](https://discourse.slicer.org/u/Tair)\
**Replies:** 1\
**Last updated:** [December 9, 2025, 6:12am UTC](https://discourse.slicer.org/t/workflow-documentation/45385 "2025-12-09T06:12:57Z")

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Hellow everyone, I want to know if there is any option to have a file\\note with all the actions that I do while I’m trying to segment an image. For example, if I first did median filter and then threshold… so, I can e…

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