# Top **URL:** https://discourse.slicer.org/top.md?page=12 [Latest](https://discourse.slicer.org/latest.md) · [Categories](https://discourse.slicer.org/categories.md) · [Tags](https://discourse.slicer.org/tags.md) **Page:** 13 --- ## [Segmentations on CT head image](https://discourse.slicer.org/t/segmentations-on-ct-head-image/48690)
**Author:** [@imbeatriz](https://discourse.slicer.org/u/imbeatriz)\ **Replies:** 2\ **Last updated:** [November 4, 2026, 8:21am UTC](https://discourse.slicer.org/t/segmentations-on-ct-head-image/48690 "2026-11-04T08:21:11Z")
Hi everyone! I’m working with a head CT scan and would like to segment different tissues, including the skull (bone), brain, soft tissue, skin, and air cavities. Does anyone know if there is a tool or extension in 3D S… --- ## [2026.10.06 Weekly Meeting](https://discourse.slicer.org/t/2026-10-06-weekly-meeting/48359)
**Author:** [@ebrahim](https://discourse.slicer.org/u/ebrahim)\ **Replies:** 1\ **Last updated:** [October 5, 2026, 1:49pm UTC](https://discourse.slicer.org/t/2026-10-06-weekly-meeting/48359 "2026-10-05T13:49:04Z")
Title: 2026.10.06 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: Google Meet meeting 📅 Weekly Meeting · October 6, 202… --- ## [How to quickly recompile updated code based on the current build version](https://discourse.slicer.org/t/how-to-quickly-recompile-updated-code-based-on-the-current-build-version/48089)
**Author:** [@zhuofalin](https://discourse.slicer.org/u/zhuofalin)\ **Replies:** 1\ **Last updated:** [September 7, 2026, 2:23pm UTC](https://discourse.slicer.org/t/how-to-quickly-recompile-updated-code-based-on-the-current-build-version/48089 "2026-09-07T14:23:19Z")
Hello, I am very happy to be back in the Slicer community.:grinning\_face: I typically use an older version of the slicer for development, but thanks to the efforts of the developers, new features are constantly being a… --- ## [Volume calculations are inconsistent on Bone CTs](https://discourse.slicer.org/t/volume-calculations-are-inconsistent-on-bone-cts/45919)
**Author:** [@Nat](https://discourse.slicer.org/u/Nat)\ **Replies:** 1\ **Last updated:** [January 26, 2026, 6:21pm UTC](https://discourse.slicer.org/t/volume-calculations-are-inconsistent-on-bone-cts/45919 "2026-01-26T18:21:14Z")
I am using slicer to separate cortical and trabecular bone in CT scans from morphosource. I use the threshold effect to first identify the cortical bone then use the wrap solidify tool to creat a segment with all bone vo… --- ## [Unable to read the DICOM "scalar volume" ](https://discourse.slicer.org/t/unable-to-read-the-dicom-scalar-volume/45830)
**Author:** [@Samuel\_Guigo](https://discourse.slicer.org/u/Samuel_Guigo)\ **Replies:** 1\ **Last updated:** [January 19, 2026, 6:54pm UTC](https://discourse.slicer.org/t/unable-to-read-the-dicom-scalar-volume/45830 "2026-01-19T18:54:54Z")
I try to import some dice and the message is : “Could not load: 8: CT TAP OS 1.5 Br59 4 as a Scalar Volume” I can read the image folder in a standard image reader… --- ## [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)
**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")
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… --- ## [Tomografo EAGLE EDGE ](https://discourse.slicer.org/t/tomografo-eagle-edge/47862)
**Author:** [@AMILCAR](https://discourse.slicer.org/u/AMILCAR)\ **Replies:** 1\ **Last updated:** [August 11, 2026, 3:05pm UTC](https://discourse.slicer.org/t/tomografo-eagle-edge/47862 "2026-08-11T15:05:04Z")
Good morning. The radiology center has a Brazilian EAGLE EDGE CT scanner, and the slicer cannot read these DCM files. How can I solve this problem? Thank you very much for your help. --- ## [Surface Registration Help](https://discourse.slicer.org/t/surface-registration-help/47499)
**Author:** [@cgroth](https://discourse.slicer.org/u/cgroth)\ **Replies:** 1\ **Last updated:** [June 29, 2026, 5:38pm UTC](https://discourse.slicer.org/t/surface-registration-help/47499 "2026-06-29T17:38:26Z")
New to 3D Slicer, so be gentle. Trying to do some comparisons of planned vs achieved tooth movements and I’m struggling to find the surface registration tool within SlicerCMF. What am I missing? Thanks! --- ## [ImageStacks is not showing up as an option in the SlicerMorph extension](https://discourse.slicer.org/t/imagestacks-is-not-showing-up-as-an-option-in-the-slicermorph-extension/47372)
**Author:** [@Lachesis676](https://discourse.slicer.org/u/Lachesis676)\ **Replies:** 1\ **Last updated:** [June 17, 2026, 8:20pm UTC](https://discourse.slicer.org/t/imagestacks-is-not-showing-up-as-an-option-in-the-slicermorph-extension/47372 "2026-06-17T20:20:24Z")
Hello, I have downloaded 3D Slicer 5.10 for macOS and I also installed the SlicerMorph extension. Unfortunately, ImageStacks is not showing up as an option. I have tried reinstallation of both 3D Slicer and SlicerMorph. … --- ## [data disappearing after crop volume](https://discourse.slicer.org/t/data-disappearing-after-crop-volume/46467)
**Author:** [@fergu365](https://discourse.slicer.org/u/fergu365)\ **Replies:** 1\ **Last updated:** [March 16, 2026, 7:38pm UTC](https://discourse.slicer.org/t/data-disappearing-after-crop-volume/46467 "2026-03-16T19:38:09Z")
Every time I attempt to make on ROI and then crop volume, once I hit apply, all the CT data disappears. It’s not just the data outside the ROI (that would make sense), it is the entire scan. I’ve tried to troubleshoot by… --- ## [Markups misalignment with the volume](https://discourse.slicer.org/t/markups-misalignment-with-the-volume/46137)
**Author:** [@SANTIAGO\_PENDON\_MING](https://discourse.slicer.org/u/SANTIAGO_PENDON_MING)\ **Replies:** 1\ **Last updated:** [February 14, 2026, 4:47am UTC](https://discourse.slicer.org/t/markups-misalignment-with-the-volume/46137 "2026-02-14T04:47:56Z")
Hi to everyone. I’m using this script to extract the pointCloud positions in IJK system: def RAStoIJK(xyz, volumeNode, RAS = True): """ Transforms a list of points or np array of shape (n,3) in RAS coordinates … --- ## [3d model segmentation export in usdz](https://discourse.slicer.org/t/3d-model-segmentation-export-in-usdz/45806)
**Author:** [@Caterina](https://discourse.slicer.org/u/Caterina)\ **Replies:** 1\ **Last updated:** [January 17, 2026, 3:14pm UTC](https://discourse.slicer.org/t/3d-model-segmentation-export-in-usdz/45806 "2026-01-17T15:14:32Z")
Dear support, is it possible to directly export segmentation 3d model from slicer in usdz format? --- ## [PRISMrendering not loading](https://discourse.slicer.org/t/prismrendering-not-loading/48550)
**Author:** [@Atticus](https://discourse.slicer.org/u/Atticus)\ **Replies:** 1\ **Last updated:** [October 19, 2026, 3:14pm UTC](https://discourse.slicer.org/t/prismrendering-not-loading/48550 "2026-10-19T15:14:21Z")
Hi! As the title says, the PRISMrendering module appears in red boldface in the module finder and it only displays “PRISMRendering module is not loaded” I installed it from the Extension Manager and restarted 3DSlicer … --- ## [Create centerlines in multiple tubes?](https://discourse.slicer.org/t/create-centerlines-in-multiple-tubes/46585)
**Author:** [@Morgenstern](https://discourse.slicer.org/u/Morgenstern)\ **Replies:** 1\ **Last updated:** [March 26, 2026, 10:15pm UTC](https://discourse.slicer.org/t/create-centerlines-in-multiple-tubes/46585 "2026-03-26T22:15:46Z")
Hey, I have a structure consisting of many closed, not connected tubes. I would like to know if it is possible to detect the centerlines of multiple tubes at once. I was only able to create the centerline for one tube at… --- ## [Slicer build factory speed](https://discourse.slicer.org/t/slicer-build-factory-speed/45358)
**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")
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… --- ## [Segementing mri doesnt do continous layer](https://discourse.slicer.org/t/segementing-mri-doesnt-do-continous-layer/46868)
**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")
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 . --- ## [Validation Request: Visceral Fascia Segmentation from CT Scans ](https://discourse.slicer.org/t/validation-request-visceral-fascia-segmentation-from-ct-scans/45082)
**Author:** [@Charles\_Chyna](https://discourse.slicer.org/u/Charles_Chyna)\ **Replies:** 1\ **Last updated:** [November 14, 2025, 9:16pm UTC](https://discourse.slicer.org/t/validation-request-visceral-fascia-segmentation-from-ct-scans/45082 "2025-11-14T21:16:57Z")
Greetings everyone, Before moving forward with a larger dataset, I would greatly appreciate expert feedback on my approach to the automated pipeline I’m developing for visceral fascia segmentation from abdominal CT scans… --- ## [Rounding or display error in threshold level selector](https://discourse.slicer.org/t/rounding-or-display-error-in-threshold-level-selector/48470)
**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\ **Replies:** 1\ **Last updated:** [October 10, 2026, 4:52pm UTC](https://discourse.slicer.org/t/rounding-or-display-error-in-threshold-level-selector/48470 "2026-10-10T16:52:09Z")
This is with the latest stable, but I have seen this issue with the float volumes before I don’t think it is new. The gist it cannot capture the true max and it leaves some of the voxels unselected. Unselected region va… --- ## [Curve direction arrows in markups not saved in .mrk.json?](https://discourse.slicer.org/t/curve-direction-arrows-in-markups-not-saved-in-mrk-json/48278)
**Author:** [@hherhold](https://discourse.slicer.org/u/hherhold)\ **Replies:** 1\ **Last updated:** [September 24, 2026, 6:59pm UTC](https://discourse.slicer.org/t/curve-direction-arrows-in-markups-not-saved-in-mrk-json/48278 "2026-09-24T18:59:47Z")
It looks like turning on/off direction arrows in curves is not saved to the .mrk.json file. Is this by design? Seems like it would be useful… I’ve added some code to .slicerrc.py to turn on arrows by default, but is ther… --- ## [Help total segmentator](https://discourse.slicer.org/t/help-total-segmentator/46244)
**Author:** [@jimenagonzalezsal](https://discourse.slicer.org/u/jimenagonzalezsal)\ **Replies:** 1\ **Last updated:** [February 23, 2026, 1:56am UTC](https://discourse.slicer.org/t/help-total-segmentator/46244 "2026-02-23T01:56:50Z")
Hello! Could anyone help me set up total segmentator! thanks! --- ## [Citing 3D Slicer in Anatomy papers - occipital condyle morphometry](https://discourse.slicer.org/t/citing-3d-slicer-in-anatomy-papers-occipital-condyle-morphometry/46485)
**Author:** [@thealexshadow23](https://discourse.slicer.org/u/thealexshadow23)\ **Replies:** 1\ **Last updated:** [March 17, 2026, 5:29pm UTC](https://discourse.slicer.org/t/citing-3d-slicer-in-anatomy-papers-occipital-condyle-morphometry/46485 "2026-03-17T17:29:49Z")
Hello everybody! I’m writing a research paper using 3D Slicer for morphometric evaluation of occipital condyle, distance to hypoglossal canal and foramen magnum. I can’t seem to find a lot of research papers that use 3D… --- ## [Why won't my mrml file open in 3D slicer, or my stl file become visible?](https://discourse.slicer.org/t/why-wont-my-mrml-file-open-in-3d-slicer-or-my-stl-file-become-visible/47172)
**Author:** [@Emerson](https://discourse.slicer.org/u/Emerson)\ **Replies:** 1\ **Last updated:** [May 29, 2026, 2:34pm UTC](https://discourse.slicer.org/t/why-wont-my-mrml-file-open-in-3d-slicer-or-my-stl-file-become-visible/47172 "2026-05-29T14:34:17Z")
I was trying to open an mrml file I have saved, and while it opened the app it did not open the file or show up anywhere. I tried again with the stl file and while it showed up under ‘data’ (which is farther than I got w… --- ## [difficulties finding some extensions](https://discourse.slicer.org/t/difficulties-finding-some-extensions/47035)
**Author:** [@gloria.rossi](https://discourse.slicer.org/u/gloria.rossi)\ **Replies:** 1\ **Last updated:** [May 14, 2026, 9:45pm UTC](https://discourse.slicer.org/t/difficulties-finding-some-extensions/47035 "2026-05-14T21:45:15Z")
Hi i cannot find some extension in the site @KitwareMedical/slicer-extensions-webapp I use stable version but I cannot find Totalsegmentator and PyTorch --- ## [Renal Artery Segmentation: Recommendations using AVT Dataset](https://discourse.slicer.org/t/renal-artery-segmentation-recommendations-using-avt-dataset/46669)
**Author:** [@kryspiechicken](https://discourse.slicer.org/u/kryspiechicken)\ **Replies:** 1\ **Last updated:** [April 6, 2026, 12:22pm UTC](https://discourse.slicer.org/t/renal-artery-segmentation-recommendations-using-avt-dataset/46669 "2026-04-06T12:22:37Z")
Hey everyone! I’m just starting with Slicer3D, any recommendations for renal artery segmentations? Currently working on a BME project of comparison of endovascular paths (radial versus femoral) access to renal arteries,… --- ## [Shape analysis module](https://discourse.slicer.org/t/shape-analysis-module/45344)
**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")
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 . --- ## [Dose Calculating alogorithm and calibration curve for Slicer-RT data](https://discourse.slicer.org/t/dose-calculating-alogorithm-and-calibration-curve-for-slicer-rt-data/48451)
**Author:** [@Rafael\_Scatena](https://discourse.slicer.org/u/Rafael_Scatena)\ **Replies:** 1\ **Last updated:** [October 15, 2026, 1:57pm UTC](https://discourse.slicer.org/t/dose-calculating-alogorithm-and-calibration-curve-for-slicer-rt-data/48451 "2026-10-15T13:57:23Z")
Hi, I hope this message finds you well. I am using the SlicerRT project in my research on Monte Carlo dose calculation in anthropomorphic phantoms, and I am particularly interested in the dataset eclipse-8.1.20-phantom… --- ## [Fill in part of segment without adding whole model ](https://discourse.slicer.org/t/fill-in-part-of-segment-without-adding-whole-model/47045)
**Author:** [@akelly17](https://discourse.slicer.org/u/akelly17)\ **Replies:** 1\ **Last updated:** [May 15, 2026, 3:38pm UTC](https://discourse.slicer.org/t/fill-in-part-of-segment-without-adding-whole-model/47045 "2026-05-15T15:38:59Z")
Hey all, I cannot seem to figure out how to get this section of my model to fill in (i.e: make the segment whole) without adding back the entire model. I have just figured out how the “masking” function works, and am sti… --- ## [Image capture shortcuts with transparent background](https://discourse.slicer.org/t/image-capture-shortcuts-with-transparent-background/48422)
**Author:** [@Hannnonk](https://discourse.slicer.org/u/Hannnonk)\ **Replies:** 1\ **Last updated:** [October 7, 2026, 12:31pm UTC](https://discourse.slicer.org/t/image-capture-shortcuts-with-transparent-background/48422 "2026-10-07T12:31:07Z")
Making an image series with a 3D segmentation. I want images with a transparent background. This involves going through “utilities” \>\>\> “image capture” . The issue: I am taking a series of images where segmentations ar… --- ## [Radiomics feature ](https://discourse.slicer.org/t/radiomics-feature/48402)
**Author:** [@jannat\_jaafrah](https://discourse.slicer.org/u/jannat_jaafrah)\ **Replies:** 1\ **Last updated:** [October 5, 2026, 5:08pm UTC](https://discourse.slicer.org/t/radiomics-feature/48402 "2026-10-05T17:08:26Z")
Hi everyone, i need help for these choices what is the best for the features? --- ## [Seeking guidance on visualizing MyBuddy 280 robot in 3D Slicer with WLAN connection](https://discourse.slicer.org/t/seeking-guidance-on-visualizing-mybuddy-280-robot-in-3d-slicer-with-wlan-connection/45789)
**Author:** [@Dristi\_R](https://discourse.slicer.org/u/Dristi_R)\ **Replies:** 1\ **Last updated:** [January 17, 2026, 5:41pm UTC](https://discourse.slicer.org/t/seeking-guidance-on-visualizing-mybuddy-280-robot-in-3d-slicer-with-wlan-connection/45789 "2026-01-17T17:41:30Z")
Hello everyone, I am currently working on integrating the MyBuddy 280 robotic arm by Elephant Robotics with 3D Slicer using the SlicerROS2 module. My goal is to visualize the robot in Slicer while simultaneously control… --- ## [Registration Open: IST Winter School 2026 (Hands-on Tractography) – Verona, Italy](https://discourse.slicer.org/t/registration-open-ist-winter-school-2026-hands-on-tractography-verona-italy/45722)
**Author:** [@Graham\_Little](https://discourse.slicer.org/u/Graham_Little)\ **Replies:** 0\ **Last updated:** [January 9, 2026, 8:43pm UTC](https://discourse.slicer.org/t/registration-open-ist-winter-school-2026-hands-on-tractography-verona-italy/45722 "2026-01-09T20:43:05Z")
Dear colleagues, We are pleased to announce that registration is now open for the IST Winter School 2026, organized by the International Society for Tractography. Dates: February 24–27, 2026 Location: University of Ver… --- ## [Ported mlx version of TotalSegmentator - Apple Silicon](https://discourse.slicer.org/t/ported-mlx-version-of-totalsegmentator-apple-silicon/47213)
**Author:** [@pox\_got](https://discourse.slicer.org/u/pox_got)\ **Replies:** 0\ **Last updated:** [June 2, 2026, 2:58pm UTC](https://discourse.slicer.org/t/ported-mlx-version-of-totalsegmentator-apple-silicon/47213 "2026-06-02T14:58:22Z")
Please check it out and provide feedback. --- ## [Newbie - Need Annotation Help](https://discourse.slicer.org/t/newbie-need-annotation-help/48246)
**Author:** [@MaxFacRad](https://discourse.slicer.org/u/MaxFacRad)\ **Replies:** 1\ **Last updated:** [October 6, 2026, 2:14pm UTC](https://discourse.slicer.org/t/newbie-need-annotation-help/48246 "2026-10-06T14:14:39Z")
Hi, total newbie here on this software. i am looking to annotate CT scans, bone fractures specifically, and I need to mark / annotate the CT scans for the data people. I need to make a minimal rectangle/square around th… --- ## [Applying boundary constraints to DRR volumes in SlicerAutoscoperM](https://discourse.slicer.org/t/applying-boundary-constraints-to-drr-volumes-in-slicerautoscoperm/48106)
**Author:** [@Dorte](https://discourse.slicer.org/u/Dorte)\ **Replies:** 1\ **Last updated:** [September 10, 2026, 7:22am UTC](https://discourse.slicer.org/t/applying-boundary-constraints-to-drr-volumes-in-slicerautoscoperm/48106 "2026-09-10T07:22:41Z")
Hello Slicer team and Slicer community, I’m working with monoplanar videoradiography, and I’m trying to reduce depth ambiguity during bone tracking. I was wondering whether SlicerAutoscoperM allows applying geometric o… --- ## [Looking for Plugins for multiple lesions like NF1. ](https://discourse.slicer.org/t/looking-for-plugins-for-multiple-lesions-like-nf1/46951)
**Author:** [@zhousy5310](https://discourse.slicer.org/u/zhousy5310)\ **Replies:** 1\ **Last updated:** [May 11, 2026, 6:57am UTC](https://discourse.slicer.org/t/looking-for-plugins-for-multiple-lesions-like-nf1/46951 "2026-05-11T06:57:04Z")
Currently I’m segmenting NF1 images, but it’s really a pain. Are there any tools that can help with it? --- ## [Is it possible to update closed surface of a segment instead of removing closed surface when underlying vtkImageData is modified?](https://discourse.slicer.org/t/is-it-possible-to-update-closed-surface-of-a-segment-instead-of-removing-closed-surface-when-underlying-vtkimagedata-is-modified/45639)
**Author:** [@Vincent](https://discourse.slicer.org/u/Vincent)\ **Replies:** 1\ **Last updated:** [December 30, 2025, 3:34pm UTC](https://discourse.slicer.org/t/is-it-possible-to-update-closed-surface-of-a-segment-instead-of-removing-closed-surface-when-underlying-vtkimagedata-is-modified/45639 "2025-12-30T15:34:58Z")
Hi, I am trying to modify a segment by modifying the underlying binary label map (an instance of vtkImageData) in C++. When modified() of vtkImageData is called, the closed surface of the segment is removed automatical… --- ## [2025.12.02 Weekly Meeting](https://discourse.slicer.org/t/2025-12-02-weekly-meeting/45304)
**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\ **Replies:** 1\ **Last updated:** [December 2, 2025, 3:50pm UTC](https://discourse.slicer.org/t/2025-12-02-weekly-meeting/45304 "2025-12-02T15:50:32Z")
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 - … --- ## [Lattice structure segmentation](https://discourse.slicer.org/t/lattice-structure-segmentation/47417)
**Author:** [@Tasrif-Ul\_Anwar](https://discourse.slicer.org/u/Tasrif-Ul_Anwar)\ **Replies:** 1\ **Last updated:** [June 22, 2026, 10:17pm UTC](https://discourse.slicer.org/t/lattice-structure-segmentation/47417 "2026-06-22T22:17:48Z")
We are working with a 3D-printed TPMS lattice structure (fig b) that was tested under compression (we have 4 scans at different loading). I am currently segmenting the sample so that we can compare the deformation of ind… --- ## [IS Meta Quest 3 Video Passthough supported in Virtual reality module for OpenXR backend?](https://discourse.slicer.org/t/is-meta-quest-3-video-passthough-supported-in-virtual-reality-module-for-openxr-backend/46649)
**Author:** [@kareem\_abdelaziz](https://discourse.slicer.org/u/kareem_abdelaziz)\ **Replies:** 1\ **Last updated:** [April 4, 2026, 1:42am UTC](https://discourse.slicer.org/t/is-meta-quest-3-video-passthough-supported-in-virtual-reality-module-for-openxr-backend/46649 "2026-04-04T01:42:51Z")
hello I wanted to use Augmenteds reality for a protoype project and I want to purchase Meta Quest 3 as it the commericially avalaible supported glasses , does the Virual Reality module support the Videopass through for a… --- ## [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)
**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")
(Original post deleted upon author’s request to protect private information. -staff) --- ## [ALPACA subsampling](https://discourse.slicer.org/t/alpaca-subsampling/45273)
**Author:** [@Lucy-create02](https://discourse.slicer.org/u/Lucy-create02)\ **Replies:** 1\ **Last updated:** [November 30, 2025, 6:51am UTC](https://discourse.slicer.org/t/alpaca-subsampling/45273 "2025-11-30T06:51:57Z")
Hi Slicer Forum, I’m trying out the automatic landmarking module ALPACA/ MALPACA in 3D Slicer. When running ALPACA subsampling the max density value is capped at 2 so I can only achieve a maximum subsampling of around 3… --- ## [Registered SPECT DICOM export issue](https://discourse.slicer.org/t/registered-spect-dicom-export-issue/47347)
**Author:** [@Sorawipat\_Intamoon](https://discourse.slicer.org/u/Sorawipat_Intamoon)\ **Replies:** 1\ **Last updated:** [June 15, 2026, 7:03pm UTC](https://discourse.slicer.org/t/registered-spect-dicom-export-issue/47347 "2026-06-15T19:03:09Z")
Dear all, I am working on image-based internal dosimetry using multiple-time-point quantitative SPECT images. To align the images across time points, I registered each CT image to a reference CT and then applied the re… --- ## [Plane-Cut on segment's labelmap](https://discourse.slicer.org/t/plane-cut-on-segments-labelmap/45737)
**Author:** [@shanfl](https://discourse.slicer.org/u/shanfl)\ **Replies:** 1\ **Last updated:** [January 11, 2026, 10:39pm UTC](https://discourse.slicer.org/t/plane-cut-on-segments-labelmap/45737 "2026-01-11T22:39:49Z")
I need to plane-cut a labelmap of a segment with a vtkplanewidget, but the cutting position is not correct.I think there might be an issue with the conversion from voxel ijk coordinates to RAS coordinates, but I can’t pi… --- ## [Next PW preparation meeting on Tuesday, May 12th at 10 AM ET](https://discourse.slicer.org/t/next-pw-preparation-meeting-on-tuesday-may-12th-at-10-am-et/46943)
**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\ **Replies:** 0\ **Last updated:** [May 6, 2026, 8:43pm UTC](https://discourse.slicer.org/t/next-pw-preparation-meeting-on-tuesday-may-12th-at-10-am-et/46943 "2026-05-06T20:43:04Z")
Dear Project Week community, The next project week preparation meeting will be next Tuesday, May 12, at 10:00 AM ET. (2026-05-12T14:00:00Z (UTC)) If you are interested in discussing a possible project, please reply to … --- ## [Create a plane through markups or control points](https://discourse.slicer.org/t/create-a-plane-through-markups-or-control-points/45238)
**Author:** [@Catalina\_Balzo](https://discourse.slicer.org/u/Catalina_Balzo)\ **Replies:** 0\ **Last updated:** [November 26, 2025, 3:04pm UTC](https://discourse.slicer.org/t/create-a-plane-through-markups-or-control-points/45238 "2025-11-26T15:04:02Z")
Hi, I need to create planes from points. Is that possible? If I have two points, I understand that I need a third coordinate to define a plane, so I would like to orient that plane along an X, Y, or Z direction, (for e… --- ## [Failed to load the nnUNet segmentation result](https://discourse.slicer.org/t/failed-to-load-the-nnunet-segmentation-result/45350)
**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")
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… --- ## [PyTorch not working on Intel(R) Core(TM) Ultra 7 155H](https://discourse.slicer.org/t/pytorch-not-working-on-intel-r-core-tm-ultra-7-155h/47724)
**Author:** [@Esteban\_Barreiro](https://discourse.slicer.org/u/Esteban_Barreiro)\ **Replies:** 0\ **Last updated:** [July 23, 2026, 12:48pm UTC](https://discourse.slicer.org/t/pytorch-not-working-on-intel-r-core-tm-ultra-7-155h/47724 "2026-07-23T12:48:39Z")
Hi community! I can’t run Dental Segmentator on an Intel(R) Core™ Ultra 7 155H, on Slicer v 5.8.1, due to an error on Torch, I have already tried all the troubleshooting and it still not working. Does anyone solve this… --- ## [Guidance on Intensity Correction for Siemens Multiband EPI Data](https://discourse.slicer.org/t/guidance-on-intensity-correction-for-siemens-multiband-epi-data/46155)
**Author:** [@Muhammad\_Faizan](https://discourse.slicer.org/u/Muhammad_Faizan)\ **Replies:** 1\ **Last updated:** [February 14, 2026, 4:56am UTC](https://discourse.slicer.org/t/guidance-on-intensity-correction-for-siemens-multiband-epi-data/46155 "2026-02-14T04:56:26Z")
I am working with EPI d ata acquired on a Siemens 3T scanner. The data is multiband with no in-plane acceleration. I reconstructed the multiband data using the slice GRAPPA technique. However, I am facing an issue: … --- ## [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)
**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")
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. … --- ## [New extension: RadReirradiation for radiotherapy reirradiation analysis and EQD2 dose accumulation](https://discourse.slicer.org/t/new-extension-radreirradiation-for-radiotherapy-reirradiation-analysis-and-eqd2-dose-accumulation/47028)
**Author:** [@LuisParedesOcampo](https://discourse.slicer.org/u/LuisParedesOcampo)\ **Replies:** 0\ **Last updated:** [May 14, 2026, 2:23pm UTC](https://discourse.slicer.org/t/new-extension-radreirradiation-for-radiotherapy-reirradiation-analysis-and-eqd2-dose-accumulation/47028 "2026-05-14T14:23:00Z")
Hi everyone, I’d like to introduce RadReirradiation, a new 3D Slicer extension designed to support clinical reirradiation workflows in radiotherapy. The extension provides the following features: • Voxel-by-voxel BED … [Previous page](https://discourse.slicer.org/top.md?page=11&per_page=50) [Next page](https://discourse.slicer.org/top.md?page=13&per_page=50)