# Latest

**URL:** https://discourse.slicer.org/latest.md?page=13

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

**Page:** 14

---

## [Error In total Segmentor macOS ](https://discourse.slicer.org/t/error-in-total-segmentor-macos/47021)

<div class="topic-metadata">

**Author:** [@Gabriel.LA](https://discourse.slicer.org/u/Gabriel.LA)\
**Replies:** 1\
**Last updated:** [May 14, 2026, 6:41am UTC](https://discourse.slicer.org/t/error-in-total-segmentor-macos/47021 "2026-05-14T06:41:56Z")

</div>

Command ‘\[’/Applications/Slicer.app/Contents/bin/../bin/PythonSlicer’, ‘/Applications/Slicer.app/Contents/lib/Python/bin/TotalSegmentator’, ‘-i’, ‘/private/var/folders/3n/nb74wlx17txbbdx1b3cjlwym0000gn/T/Slicer-gabriellu…

---

## [How to display all the rotated oct images simultaneously in 3d view](https://discourse.slicer.org/t/how-to-display-all-the-rotated-oct-images-simultaneously-in-3d-view/47015)

<div class="topic-metadata">

**Author:** [@tdchen](https://discourse.slicer.org/u/tdchen)\
**Replies:** 0\
**Last updated:** [May 14, 2026, 12:07am UTC](https://discourse.slicer.org/t/how-to-display-all-the-rotated-oct-images-simultaneously-in-3d-view/47015 "2026-05-14T00:07:50Z")

</div>

What I can see now is: What I want to see is: Each of my pictures is a volume, and the content cannot be seen in 3d view. Could someone please help me? Thank you in advance!

---

## [Apply composite affine + non-linear transform to 100k points](https://discourse.slicer.org/t/apply-composite-affine-non-linear-transform-to-100k-points/46993)

<div class="topic-metadata">

**Author:** [@sulli419](https://discourse.slicer.org/u/sulli419)\
**Replies:** 5\
**Last updated:** [May 12, 2026, 6:39pm UTC](https://discourse.slicer.org/t/apply-composite-affine-non-linear-transform-to-100k-points/46993 "2026-05-12T18:39:08Z")

</div>

Hi, I have a large ~10GB .h5 transform that I created within Slicer (affine+non-linear displacement field) by registering two volumes. I also have a spreadsheet that lists the XYZ coordinates of up to 100,000 points. …

---

## [How can I calculate and visualize displacement vectors of the heart and lungs between Normal Breathing and DIBH](https://discourse.slicer.org/t/how-can-i-calculate-and-visualize-displacement-vectors-of-the-heart-and-lungs-between-normal-breathing-and-dibh/46995)

<div class="topic-metadata">

**Author:** [@zahra\_Tabasi](https://discourse.slicer.org/u/zahra_Tabasi)\
**Replies:** 0\
**Last updated:** [May 12, 2026, 6:20pm UTC](https://discourse.slicer.org/t/how-can-i-calculate-and-visualize-displacement-vectors-of-the-heart-and-lungs-between-normal-breathing-and-dibh/46995 "2026-05-12T18:20:03Z")

</div>

Hello everyone, I am currently conducting a research study involving patients with unilateral left-sided breast cancer undergoing radiotherapy. The purpose of my study is to compare Normal Breathing (free breathing) and…

---

## [How can I Calculate and Visualize of Center of Mass (COM) or Centroid of the heart in 3D Slicer version 5.10.0](https://discourse.slicer.org/t/how-can-i-calculate-and-visualize-of-center-of-mass-com-or-centroid-of-the-heart-in-3d-slicer-version-5-10-0/46994)

<div class="topic-metadata">

**Author:** [@zahra\_Tabasi](https://discourse.slicer.org/u/zahra_Tabasi)\
**Replies:** 0\
**Last updated:** [May 12, 2026, 6:14pm UTC](https://discourse.slicer.org/t/how-can-i-calculate-and-visualize-of-center-of-mass-com-or-centroid-of-the-heart-in-3d-slicer-version-5-10-0/46994 "2026-05-12T18:14:06Z")

</div>

Hello everyone, I am currently conducting a research study involving patients with unilateral left-sided breast cancer undergoing radiotherapy. The purpose of my study is to compare Normal Breathing (free breathing) and…

---

## [Help Non-linear Transform Error During Crop Volume / Total Segmentation](https://discourse.slicer.org/t/help-non-linear-transform-error-during-crop-volume-total-segmentation/46989)

<div class="topic-metadata">

**Author:** [@jimenagonzalezsal](https://discourse.slicer.org/u/jimenagonzalezsal)\
**Replies:** 1\
**Last updated:** [May 11, 2026, 10:03pm UTC](https://discourse.slicer.org/t/help-non-linear-transform-error-during-crop-volume-total-segmentation/46989 "2026-05-11T22:03:02Z")

</div>

Hi everyone!! I wanted to ask for some help. I’m trying to crop a volume and then add Total Segmentation, but whenever I try to either crop or create the segmentation from an MRI, a message appears stating: “Output volu…

---

## [nnUNet fails with ModuleNotFoundError: No module named 'torchvision.ops'](https://discourse.slicer.org/t/nnunet-fails-with-modulenotfounderror-no-module-named-torchvision-ops/46802)

<div class="topic-metadata">

**Author:** [@aabrown100-git](https://discourse.slicer.org/u/aabrown100-git)\
**Replies:** 5\
**Last updated:** [May 11, 2026, 9:03pm UTC](https://discourse.slicer.org/t/nnunet-fails-with-modulenotfounderror-no-module-named-torchvision-ops/46802 "2026-05-11T21:03:11Z")

</div>

Using nnUNet extension with custom weights fails with the following error output. Start \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* nnUNet is already installed (2.7.0) and compatible…

---

## [Min/max intensity normalization](https://discourse.slicer.org/t/min-max-intensity-normalization/29179)

<div class="topic-metadata">

**Author:** [@mahmood](https://discourse.slicer.org/u/mahmood)\
**Replies:** 1\
**Last updated:** [May 11, 2026, 8:22pm UTC](https://discourse.slicer.org/t/min-max-intensity-normalization/29179 "2026-05-11T20:22:59Z")

</div>

Sorry, I have a problem. Can we applied min/max intensity normalization with 3dslicer? If yes, How can it be done? Thanks

---

## [How to normalize the intensity?](https://discourse.slicer.org/t/how-to-normalize-the-intensity/28052)

<div class="topic-metadata">

**Author:** [@Floren](https://discourse.slicer.org/u/Floren)\
**Replies:** 2\
**Last updated:** [May 11, 2026, 8:20pm UTC](https://discourse.slicer.org/t/how-to-normalize-the-intensity/28052 "2026-05-11T20:20:36Z")

</div>

Hello, everyone! I am working with prostate adc maps and trying to measure adc value for prostate tumors in order to demonstrate that there is a correlation between adc value and Gleason score. I understood that i must…

---

## [Is it possible to rescale intensity of a volume?](https://discourse.slicer.org/t/is-it-possible-to-rescale-intensity-of-a-volume/2543)

<div class="topic-metadata">

**Author:** [@Alex\_Vergara](https://discourse.slicer.org/u/Alex_Vergara)\
**Replies:** 5\
**Last updated:** [May 11, 2026, 7:52pm UTC](https://discourse.slicer.org/t/is-it-possible-to-rescale-intensity-of-a-volume/2543 "2026-05-11T19:52:13Z")

</div>

I want to rescale a Volume created reading a wrongly calibrated dicom file. Is this possible? Usually this is automatically done with the RescaleIntercept and RescaleSlope from the dicom header but when those values are…

---

## [3D Slicer won't open due to libssl on Ubuntu 24.04 LTS](https://discourse.slicer.org/t/3d-slicer-wont-open-due-to-libssl-on-ubuntu-24-04-lts/46987)

<div class="topic-metadata">

**Author:** [@dvijay](https://discourse.slicer.org/u/dvijay)\
**Replies:** 4\
**Last updated:** [May 11, 2026, 4:35pm UTC](https://discourse.slicer.org/t/3d-slicer-wont-open-due-to-libssl-on-ubuntu-24-04-lts/46987 "2026-05-11T16:35:52Z")

</div>

OS: Ubuntu 24.04.3 LTS Slicer: 5.10.0-linux-amd64 Installation method: cd ~/Downloads tar -xvf Slicer-5.10.0-linux-amd64.tar.gz sudo mv ./Slicer-5.10.0-linux-amd64 /opt/Slicer-5.10.0-linux-amd64 sudo apt-get install l…

---

## [2026.05.12 Weekly Meeting](https://discourse.slicer.org/t/2026-05-12-weekly-meeting/46936)

<div class="topic-metadata">

**Author:** [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Replies:** 1\
**Last updated:** [May 11, 2026, 1:33pm UTC](https://discourse.slicer.org/t/2026-05-12-weekly-meeting/46936 "2026-05-11T13:33:23Z")

</div>

Title: 2026.05.12 Weekly Meeting Next Tuesday, we will be having our next weekly hangout at 11:00 AM ET until 12:00 PM ET. Anyone is welcome to join at this link: Launch Meeting - Zoom Agenda: Please post to this t…

---

## [Model To Model Distance running as CLI](https://discourse.slicer.org/t/model-to-model-distance-running-as-cli/46971)

<div class="topic-metadata">

**Author:** [@Mrdlev](https://discourse.slicer.org/u/Mrdlev)\
**Replies:** 1\
**Last updated:** [May 11, 2026, 1:27pm UTC](https://discourse.slicer.org/t/model-to-model-distance-running-as-cli/46971 "2026-05-11T13:27:52Z")

</div>

Hi everyone, I’m trying to use the Model-to-Model Distance extension in 3D Slicer to quantify the average displacement between two structures (one with deformation and one without). However, I’ve run into an issue: I…

---

## [Looking for Plugins for multiple lesions like NF1. ](https://discourse.slicer.org/t/looking-for-plugins-for-multiple-lesions-like-nf1/46951)

<div class="topic-metadata">

**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")

</div>

Currently I’m segmenting NF1 images, but it’s really a pain. Are there any tools that can help with it?

---

## [Get C-arm angles from 3D view orientation](https://discourse.slicer.org/t/get-c-arm-angles-from-3d-view-orientation/24435)

<div class="topic-metadata">

**Author:** [@donghmu](https://discourse.slicer.org/u/donghmu)\
**Replies:** 23\
**Last updated:** [May 11, 2026, 12:04am UTC](https://discourse.slicer.org/t/get-c-arm-angles-from-3d-view-orientation/24435 "2026-05-11T00:04:09Z")

</div>

Hi. I am an interventional cardiologist. Currently I am interested in pre-planning for my intervention. In detail, I want to determine the optimal angles for setting the X-ray views. Is there any extension, or Python co…

---

## [Change the left control panel size](https://discourse.slicer.org/t/change-the-left-control-panel-size/18072)

<div class="topic-metadata">

**Author:** [@full\_stack\_master](https://discourse.slicer.org/u/full_stack_master)\
**Replies:** 2\
**Last updated:** [May 9, 2026, 12:53pm UTC](https://discourse.slicer.org/t/change-the-left-control-panel-size/18072 "2026-05-09T12:53:50Z")

</div>

I want to reduce the left control panel size in code can you help me

---

## [Micro-CT Pseudobulb of Orchids: ](https://discourse.slicer.org/t/micro-ct-pseudobulb-of-orchids/46856)

<div class="topic-metadata">

**Author:** [@Akhmad\_Fauzan](https://discourse.slicer.org/u/Akhmad_Fauzan)\
**Replies:** 14\
**Last updated:** [May 8, 2026, 4:14am UTC](https://discourse.slicer.org/t/micro-ct-pseudobulb-of-orchids/46856 "2026-05-08T04:14:14Z")

</div>

I’m having trouble with my 3D volume rendering. I am currently trying to render a 3D volume of a pseudobulb. The object appears as a thin, flattened disk rather than a full 3D structure. Could this be an issue with the ‘…

---

## [IDAVLM Converter Not Aligning Landmarks to Model](https://discourse.slicer.org/t/idavlm-converter-not-aligning-landmarks-to-model/46940)

<div class="topic-metadata">

**Author:** [@ThomasVanParys](https://discourse.slicer.org/u/ThomasVanParys)\
**Replies:** 5\
**Last updated:** [May 7, 2026, 2:31pm UTC](https://discourse.slicer.org/t/idavlm-converter-not-aligning-landmarks-to-model/46940 "2026-05-07T14:31:45Z")

</div>

Hello All, I have create a patch in Landmark IDAV, converting the .PTS in SlicerMorph IDAVLM converter. However, they do not align with the corresponding mesh used in Landmark as seen in the UI: I am clearly missing…

---

## [How to get the clicked markup node in the 3D view?](https://discourse.slicer.org/t/how-to-get-the-clicked-markup-node-in-the-3d-view/46937)

<div class="topic-metadata">

**Author:** [@NogginBops](https://discourse.slicer.org/u/NogginBops)\
**Replies:** 4\
**Last updated:** [May 7, 2026, 2:31pm UTC](https://discourse.slicer.org/t/how-to-get-the-clicked-markup-node-in-the-3d-view/46937 "2026-05-07T14:31:35Z")

</div>

Hi, I’m interested in knowing what node is selected/hovered by the mouse when the left mouse button is pressed. I’ve tried using the scene interactor and trying to use the vtk picker, but I’m not really able to get it …

---

## [Add Scalar Volumes Not Functioning in Slicer 5.10.0](https://discourse.slicer.org/t/add-scalar-volumes-not-functioning-in-slicer-5-10-0/46952)

<div class="topic-metadata">

**Author:** [@Hualiama](https://discourse.slicer.org/u/Hualiama)\
**Replies:** 2\
**Last updated:** [May 7, 2026, 2:19pm UTC](https://discourse.slicer.org/t/add-scalar-volumes-not-functioning-in-slicer-5-10-0/46952 "2026-05-07T14:19:13Z")

</div>

Good Day All, I have been working on a study of the femur with a set of scans that have been split across two DICOM series. See below image for reference. I intend to reconstruct the femur with the inferior condyle …

---

## [Strange folder bug](https://discourse.slicer.org/t/strange-folder-bug/46835)

<div class="topic-metadata">

**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 3\
**Last updated:** [May 7, 2026, 11:14am UTC](https://discourse.slicer.org/t/strange-folder-bug/46835 "2026-05-07T11:14:40Z")

</div>

In the latest preview in Macos, data module is behaving strangely: Load two models in a blank scene Create a NewFolder Put the models in the NewFolder Hit the visibility icon at the NewFolder and notice that those two …

---

## [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)

<div class="topic-metadata">

**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")

</div>

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 …

---

## [New mailing list for PW announcements!](https://discourse.slicer.org/t/new-mailing-list-for-pw-announcements/46895)

<div class="topic-metadata">

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [May 6, 2026, 8:34pm UTC](https://discourse.slicer.org/t/new-mailing-list-for-pw-announcements/46895 "2026-05-06T20:34:24Z")

</div>

Hi all, We are setting up a new mailing list for PW announcements. It is a Gaggle hosted service, and will provide a lot more flexibility for management compared to the old PW mailing list. If you have attended Projec…

---

## [Viewer for different modalities at the same time](https://discourse.slicer.org/t/viewer-for-different-modalities-at-the-same-time/46896)

<div class="topic-metadata">

**Author:** [@Sahar\_KARIMI](https://discourse.slicer.org/u/Sahar_KARIMI)\
**Replies:** 3\
**Last updated:** [May 6, 2026, 5:37pm UTC](https://discourse.slicer.org/t/viewer-for-different-modalities-at-the-same-time/46896 "2026-05-06T17:37:54Z")

</div>

Good afternoon, I am working with 3D-slicer viewer and I want to be able to visualize different sequences at the same time, lets say comparing 2 image modalities/sequences at the same time (one be main and other transpa…

---

## [SlicerSkinMouldGenerator Extension Error](https://discourse.slicer.org/t/slicerskinmouldgenerator-extension-error/43998)

<div class="topic-metadata">

**Author:** [@koobcbc](https://discourse.slicer.org/u/koobcbc)\
**Replies:** 1\
**Last updated:** [May 6, 2026, 4:42pm UTC](https://discourse.slicer.org/t/slicerskinmouldgenerator-extension-error/43998 "2026-05-06T16:42:11Z")

</div>

I followed the steps outlined in the markdown, but I still encountered this error and I wanted to ask for help in understanding why this is being caused. I would appreciate your response. @lassoan @cpinter

---

## [Can 3D Slicer run in external SSD?](https://discourse.slicer.org/t/can-3d-slicer-run-in-external-ssd/46939)

<div class="topic-metadata">

**Author:** [@Akhmad\_Fauzan](https://discourse.slicer.org/u/Akhmad_Fauzan)\
**Replies:** 1\
**Last updated:** [May 6, 2026, 2:43pm UTC](https://discourse.slicer.org/t/can-3d-slicer-run-in-external-ssd/46939 "2026-05-06T14:43:42Z")

</div>

I was wondering if it is possible to run 3D Slicer directly from an external SSD? I would appreciate the insights on this. Thank you.

---

## [why cant i download ？](https://discourse.slicer.org/t/why-cant-i-download/46938)

<div class="topic-metadata">

**Author:** [@bluefriend50f](https://discourse.slicer.org/u/bluefriend50f)\
**Replies:** 0\
**Last updated:** [May 6, 2026, 2:35pm UTC](https://discourse.slicer.org/t/why-cant-i-download/46938 "2026-05-06T14:35:10Z")

</div>

when i click a link to download mrb，the outcome is The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.drive me crazy，such as http://slicer.kitware.com/…

---

## [PLUS server support for motion capture systems (Optitrack with Motive 3.x and VICON)](https://discourse.slicer.org/t/plus-server-support-for-motion-capture-systems-optitrack-with-motive-3-x-and-vicon/38111)

<div class="topic-metadata">

**Author:** [@modenaxe](https://discourse.slicer.org/u/modenaxe)\
**Replies:** 5\
**Last updated:** [May 6, 2026, 12:40pm UTC](https://discourse.slicer.org/t/plus-server-support-for-motion-capture-systems-optitrack-with-motive-3-x-and-vicon/38111 "2026-05-06T12:40:04Z")

</div>

Hello, I am looking into the PLUS toolkit documentation and tutorials with the aim of building a 3D Ultrasound setup and I am writing with the hope of understanding if the support to the Optitrack motion capture system…

---

## [Segmentation bounds cropped even when "cropped to minimum extent" is unchecked](https://discourse.slicer.org/t/segmentation-bounds-cropped-even-when-cropped-to-minimum-extent-is-unchecked/46920)

<div class="topic-metadata">

**Author:** [@hherhold](https://discourse.slicer.org/u/hherhold)\
**Replies:** 3\
**Last updated:** [May 6, 2026, 5:36am UTC](https://discourse.slicer.org/t/segmentation-bounds-cropped-even-when-cropped-to-minimum-extent-is-unchecked/46920 "2026-05-06T05:36:36Z")

</div>

Sequence of events: Create segmentation using slicer modify segmentation in external python script using pynrrd re-import segmentation into slicer modify segmentation in slicer save segmentation This saved segmentation…

---

## [2026.05.05 Weekly Meeting](https://discourse.slicer.org/t/2026-05-05-weekly-meeting/46871)

<div class="topic-metadata">

**Author:** [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Replies:** 3\
**Last updated:** [May 6, 2026, 1:42am UTC](https://discourse.slicer.org/t/2026-05-05-weekly-meeting/46871 "2026-05-06T01:42:36Z")

</div>

Title: 2026.05.05 Weekly Meeting Next Tuesday, we will be having our next weekly hangout at 11:00 AM ET until 12:00 PM ET. Anyone is welcome to join at this link: Launch Meeting - Zoom Agenda: Please post to this t…

[Previous page](https://discourse.slicer.org/latest.md?page=12)

[Next page](https://discourse.slicer.org/latest.md?page=14)