# Latest **URL:** https://discourse.slicer.org/latest.md?page=36 [Latest](https://discourse.slicer.org/latest.md) · [Categories](https://discourse.slicer.org/categories.md) · [Tags](https://discourse.slicer.org/tags.md) **Page:** 37 --- ## [Full screen issue with slicer on mac os 15.0.1](https://discourse.slicer.org/t/full-screen-issue-with-slicer-on-mac-os-15-0-1/39753)

**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\ **Replies:** 31\ **Last updated:** [October 15, 2025, 4:52am UTC](https://discourse.slicer.org/t/full-screen-issue-with-slicer-on-mac-os-15-0-1/39753 "2025-10-15T04:52:12Z")

full screen issue with slicer on mac os 15.0.1. the right of screen is clipped in full screen . this is since i got new mac os 15 --- ## [CT or CBCT databases of edentulous patients](https://discourse.slicer.org/t/ct-or-cbct-databases-of-edentulous-patients/44761)

**Author:** [@Fluvio\_Lobo](https://discourse.slicer.org/u/Fluvio_Lobo)\ **Replies:** 1\ **Last updated:** [October 14, 2025, 11:24pm UTC](https://discourse.slicer.org/t/ct-or-cbct-databases-of-edentulous-patients/44761 "2025-10-14T23:24:22Z")

Hi all! It has been a minute. Does anyone know of a good open-source library of HEAD/NECK CT or CBCT showing very severe edentulism? This may be too specific, but I thought I would give it a shot! --- ## [Why Slicer core is written in C++?](https://discourse.slicer.org/t/why-slicer-core-is-written-in-c/44760)

**Author:** [@tas47](https://discourse.slicer.org/u/tas47)\ **Replies:** 4\ **Last updated:** [October 14, 2025, 6:31pm UTC](https://discourse.slicer.org/t/why-slicer-core-is-written-in-c/44760 "2025-10-14T18:31:43Z")

Since QT and VTK already have python equivalence binding Why did you guys chose to write Slicer core in C++? Would there have been a significance decrease in speed if it was written entirely in python? Are there other p… --- ## [US probe tracking with ArUco marker ](https://discourse.slicer.org/t/us-probe-tracking-with-aruco-marker/44751)

**Author:** [@Hamza\_Oran](https://discourse.slicer.org/u/Hamza_Oran)\ **Replies:** 3\ **Last updated:** [October 14, 2025, 6:16pm UTC](https://discourse.slicer.org/t/us-probe-tracking-with-aruco-marker/44751 "2025-10-14T18:16:50Z")

Hello, We want to track an ultrasound probe using an ArUco marker because we need to determine the probe’s position and orientation to perform 3D reconstruction of ultrasound images. More specifically, our goal is to p… --- ## [2025.10.07 Weekly Meeting](https://discourse.slicer.org/t/2025-10-07-weekly-meeting/44680)

**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\ **Replies:** 3\ **Last updated:** [October 14, 2025, 2:18pm UTC](https://discourse.slicer.org/t/2025-10-07-weekly-meeting/44680 "2025-10-14T14:18:07Z")

Tomorrow, we will be having our next weekly hangout at 10:00 AM ET until 11:00 AM ET. a Anyone is welcome to join at this link: https://bit.ly/slicer-googlemeet-hosted-by-kitware Agenda: Please post to this thread t… --- ## [Add flow extension proportionnal to inlet/outlet diameter](https://discourse.slicer.org/t/add-flow-extension-proportionnal-to-inlet-outlet-diameter/44744)

**Author:** [@gred](https://discourse.slicer.org/u/gred)\ **Replies:** 1\ **Last updated:** [October 14, 2025, 1:33pm UTC](https://discourse.slicer.org/t/add-flow-extension-proportionnal-to-inlet-outlet-diameter/44744 "2025-10-14T13:33:27Z")

Dear all, Is there an obvious way to add flow domain extensions using the Clip Vessel module proportional to the diameter of the inlet and outlet in question according to the centerline quantification table? Best, Gre… --- ## [Cloning a composite transform yields incorrect result](https://discourse.slicer.org/t/cloning-a-composite-transform-yields-incorrect-result/44654)

**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\ **Replies:** 6\ **Last updated:** [October 14, 2025, 3:03am UTC](https://discourse.slicer.org/t/cloning-a-composite-transform-yields-incorrect-result/44654 "2025-10-14T03:03:40Z")

A composite transform node, such as those created by an ANTs QuickSyN registration, is not cloned correctly by the subject hierarchy node. I am using Slicer 5.8.1 on Windows 11. I have been working on taking apart and r… --- ## [Optitrack Trio V120 with PlusServer](https://discourse.slicer.org/t/optitrack-trio-v120-with-plusserver/44720)

**Author:** [@max\_05ge](https://discourse.slicer.org/u/max_05ge)\ **Replies:** 2\ **Last updated:** [October 14, 2025, 2:44am UTC](https://discourse.slicer.org/t/optitrack-trio-v120-with-plusserver/44720 "2025-10-14T02:44:21Z")

**Author:** [@Reshwano](https://discourse.slicer.org/u/Reshwano)\ **Replies:** 1\ **Last updated:** [October 13, 2025, 11:21pm UTC](https://discourse.slicer.org/t/superimposition-of-dicom-files/44752 "2025-10-13T23:21:15Z")

Dear 3d slicer professionals hope my message finds you well I have a project and want to superimpose two dicom files or stl files to compare deviation of dental implant, I want to know step by step procedure. Best reg… --- ## [Download page is down](https://discourse.slicer.org/t/download-page-is-down/44734)

**Author:** [@pieper](https://discourse.slicer.org/u/pieper)\ **Replies:** 2\ **Last updated:** [October 13, 2025, 5:58pm UTC](https://discourse.slicer.org/t/download-page-is-down/44734 "2025-10-13T17:58:41Z")

I just noticed this. I tried from mac and windows at home and from a cloud linux machine with same result. --- ## [Vessel reconstruction from centerlines/radius](https://discourse.slicer.org/t/vessel-reconstruction-from-centerlines-radius/44625)

**Author:** [@gred](https://discourse.slicer.org/u/gred)\ **Replies:** 8\ **Last updated:** [October 13, 2025, 2:23pm UTC](https://discourse.slicer.org/t/vessel-reconstruction-from-centerlines-radius/44625 "2025-10-13T14:23:27Z")

Hello everyone, I am working on segmenting small cerebral arteries for future CFD studies. After segmenting the small arteries that interest me, I am looking for a way to reconstruct an ideal (cylindrical) geometry fro… --- ## [Recommended Volume Reconstruction Configuration for best Ultrasound 3D reconstruction](https://discourse.slicer.org/t/recommended-volume-reconstruction-configuration-for-best-ultrasound-3d-reconstruction/43770)

**Author:** [@orionwiersma](https://discourse.slicer.org/u/orionwiersma)\ **Replies:** 2\ **Last updated:** [October 11, 2025, 8:45pm UTC](https://discourse.slicer.org/t/recommended-volume-reconstruction-configuration-for-best-ultrasound-3d-reconstruction/43770 "2025-10-11T20:45:30Z")

Hello, For context I currently use Slicer for Ultrasound reconstruction of bone surfaces. This has been relatively good for outputting the shape of the bone, but the image resolution is far lower than I would like. Addi… --- ## [Assistance with Ultrasound Segmentation File Format (.h5)](https://discourse.slicer.org/t/assistance-with-ultrasound-segmentation-file-format-h5/40243)

**Author:** [@MReza](https://discourse.slicer.org/u/MReza)\ **Replies:** 8\ **Last updated:** [October 11, 2025, 8:37pm UTC](https://discourse.slicer.org/t/assistance-with-ultrasound-segmentation-file-format-h5/40243 "2025-10-11T20:37:26Z")

Dear all, I am currently working on automatic segmentation in ultrasound imaging using the instructions provided on the AIGT GitHub repository. I have successfully trained my own model by following all the steps outlin… --- ## [Mean Skull Thickness from CT](https://discourse.slicer.org/t/mean-skull-thickness-from-ct/43704)

**Author:** [@TSatMGB](https://discourse.slicer.org/u/TSatMGB)\ **Replies:** 1\ **Last updated:** [October 11, 2025, 10:58am UTC](https://discourse.slicer.org/t/mean-skull-thickness-from-ct/43704 "2025-10-11T10:58:29Z")

Hey Everyone! I’m currently working on a research project studying skull thickness and its relation to concussion risk using clinical CT scans. I’m using 3D Slicer for segmentation and measurement and would appreciate s… --- ## [TotalSegmentator License Activation Issues](https://discourse.slicer.org/t/totalsegmentator-license-activation-issues/34866)

**Author:** [@KewilB](https://discourse.slicer.org/u/KewilB)\ **Replies:** 13\ **Last updated:** [October 11, 2025, 8:23am UTC](https://discourse.slicer.org/t/totalsegmentator-license-activation-issues/34866 "2025-10-11T08:23:44Z")

I recently obtained a license in order to use the heartchambers highres option. I am unable to activate my license. When I put the code sent to my email in the python console, I get a syntax error. Not sure if this is th… --- ## [Slow application start if recently used file is on unavailable network](https://discourse.slicer.org/t/slow-application-start-if-recently-used-file-is-on-unavailable-network/25970)

**Author:** [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\ **Replies:** 11\ **Last updated:** [October 11, 2025, 3:17am UTC](https://discourse.slicer.org/t/slow-application-start-if-recently-used-file-is-on-unavailable-network/25970 "2025-10-11T03:17:54Z")

Maybe this is what I noticed today where it was hanging at initialization and would finally load modules after a noticeable delay. This happening on launch of the application (not just first startup). I use a multi monit… --- ## [Grateful to 3D Slicer Community - Our Latest Research Published in BMC Oral Health](https://discourse.slicer.org/t/grateful-to-3d-slicer-community-our-latest-research-published-in-bmc-oral-health/44723)

**Author:** [@manjula](https://discourse.slicer.org/u/manjula)\ **Replies:** 1\ **Last updated:** [October 11, 2025, 3:07am UTC](https://discourse.slicer.org/t/grateful-to-3d-slicer-community-our-latest-research-published-in-bmc-oral-health/44723 "2025-10-11T03:07:30Z")

Dear 3D Slicer Community, I’m excited to share our recent publication in BMC Oral Health where 3D Slicer played a crucial role in our research on dental implant osseointegration. Publication Details: Toia et al. (2025… --- ## [Controlling Volume Reslice Driver to follow 5DOF inplane view of tool](https://discourse.slicer.org/t/controlling-volume-reslice-driver-to-follow-5dof-inplane-view-of-tool/44712)

**Author:** [@ruffsl](https://discourse.slicer.org/u/ruffsl)\ **Replies:** 4\ **Last updated:** [October 10, 2025, 11:09pm UTC](https://discourse.slicer.org/t/controlling-volume-reslice-driver-to-follow-5dof-inplane-view-of-tool/44712 "2025-10-10T23:09:06Z")

I’d like show a 5DOF inplane view of needle using the Volume Reslice Driver extension, with the 6th DOF rotation locked in alignment with respect to a canonical axis in the global RAS reference frame, providing a more gr… --- ## [When I finish processing in TotalSegmentator, "Show 3d" is not clickable](https://discourse.slicer.org/t/when-i-finish-processing-in-totalsegmentator-show-3d-is-not-clickable/44721)

**Author:** [@cp15](https://discourse.slicer.org/u/cp15)\ **Replies:** 1\ **Last updated:** [October 10, 2025, 12:35pm UTC](https://discourse.slicer.org/t/when-i-finish-processing-in-totalsegmentator-show-3d-is-not-clickable/44721 "2025-10-10T12:35:04Z")

When I finsih processing a file, it says processing complete and there are no errors listed. I am unable to toggle the “show 3d” button. I’m nor sure what I’m missing. --- ## [Slicer cannot be used on the extended screen](https://discourse.slicer.org/t/slicer-cannot-be-used-on-the-extended-screen/44710)

**Author:** [@Cr\_C](https://discourse.slicer.org/u/Cr_C)\ **Replies:** 0\ **Last updated:** [October 9, 2025, 5:23pm UTC](https://discourse.slicer.org/t/slicer-cannot-be-used-on-the-extended-screen/44710 "2025-10-09T17:23:33Z")

Slicer becomes unusable after I connect the extended display There were no issues using Slicer on my laptop before connecting the external display. After connecting the extended display via HDMI, I dragged the Slicer wi… --- ## [DICOM information table with no complete information](https://discourse.slicer.org/t/dicom-information-table-with-no-complete-information/15250)

**Author:** [@Ash\_Alarfaj](https://discourse.slicer.org/u/Ash_Alarfaj)\ **Replies:** 7\ **Last updated:** [October 9, 2025, 4:43pm UTC](https://discourse.slicer.org/t/dicom-information-table-with-no-complete-information/15250 "2025-10-09T16:43:43Z")

Problem report for Slicer 4.11.20200930 win-amd64: \[in dicom the older versions showed a better table with series date \] I can not control the table width, no series date --- ## [New Feature: visual DICOM browser](https://discourse.slicer.org/t/new-feature-visual-dicom-browser/33874)

**Author:** [@Davide\_Punzo](https://discourse.slicer.org/u/Davide_Punzo)\ **Replies:** 15\ **Last updated:** [October 9, 2025, 4:33pm UTC](https://discourse.slicer.org/t/new-feature-visual-dicom-browser/33874 "2025-10-09T16:33:46Z")

Description The visual DICOM browser provides a new user interface for quick viewing and retrieval of patient images stored on remote DICOM servers. The new tool is optimized for clinical workflows where the focus is on … --- ## [BoneReconstructionPlanner: Mandible surgical guide error](https://discourse.slicer.org/t/bonereconstructionplanner-mandible-surgical-guide-error/42481)

**Author:** [@Bartek\_Wisniewski](https://discourse.slicer.org/u/Bartek_Wisniewski)\ **Replies:** 9\ **Last updated:** [October 9, 2025, 2:51pm UTC](https://discourse.slicer.org/t/bonereconstructionplanner-mandible-surgical-guide-error/42481 "2025-10-09T14:51:30Z")

Hey, I have problem with generating surgical guide. I tried to make sure nothing collides with central sawboxes, tried different sizes od bigger sawboxes, changed fiducial plenty of times and yet I always get this error… --- ## [curved planar reconstruction segmentation](https://discourse.slicer.org/t/curved-planar-reconstruction-segmentation/44700)

**Author:** [@hltkrgz](https://discourse.slicer.org/u/hltkrgz)\ **Replies:** 3\ **Last updated:** [October 9, 2025, 2:24am UTC](https://discourse.slicer.org/t/curved-planar-reconstruction-segmentation/44700 "2025-10-09T02:24:53Z")

Hi, I am trying to segment coronary plaques, but when I upload the curved planar images we get from our provider to 3dslicer, all slices are different nodes, and I can’t segmentate them together. i think this is due to o… --- ## [Volume orientation (dcm vs nii.gz)](https://discourse.slicer.org/t/volume-orientation-dcm-vs-nii-gz/44697)

**Author:** [@bserrano](https://discourse.slicer.org/u/bserrano)\ **Replies:** 2\ **Last updated:** [October 9, 2025, 2:24am UTC](https://discourse.slicer.org/t/volume-orientation-dcm-vs-nii-gz/44697 "2025-10-09T02:24:07Z")

Hi all, I am working with cardiac CT data in two formats: DICOM and NIfTI (.nii.gz). I am trying to automate some processes related to the placement of fiducials, but I’ve noticed an unexpected behavior: When I load … --- ## [Cannot import name 'vtkMRMLPathPlannerTrajectoryNode' at launch](https://discourse.slicer.org/t/cannot-import-name-vtkmrmlpathplannertrajectorynode-at-launch/44227)

**Author:** [@ruffsl](https://discourse.slicer.org/u/ruffsl)\ **Replies:** 1\ **Last updated:** [October 9, 2025, 2:17am UTC](https://discourse.slicer.org/t/cannot-import-name-vtkmrmlpathplannertrajectorynode-at-launch/44227 "2025-10-09T02:17:43Z")

I have a working scripted extension that enables a user to select a path within any chosen trajectory list, as generated via the separate PathExplorer widget from the SlicerIGT extension: SlicerIGT/PathExplorer at m… --- ## [Labelmap values changing during conversion from segments back to labels](https://discourse.slicer.org/t/labelmap-values-changing-during-conversion-from-segments-back-to-labels/44663)

**Author:** [@sulli419](https://discourse.slicer.org/u/sulli419)\ **Replies:** 4\ **Last updated:** [October 8, 2025, 7:22pm UTC](https://discourse.slicer.org/t/labelmap-values-changing-during-conversion-from-segments-back-to-labels/44663 "2025-10-08T19:22:16Z")

Hi, In my workflow I am importing an 8 bit greyscale volume/mask where each pixel corresponds to a subregion. Some of the pixel values are rather high (e.g. ,227), and there are gaps between the classes (some intermedi… --- ## [Lightbox doesnt show limited as seperate lines](https://discourse.slicer.org/t/lightbox-doesnt-show-limited-as-seperate-lines/44698)

**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\ **Replies:** 3\ **Last updated:** [October 8, 2025, 2:03pm UTC](https://discourse.slicer.org/t/lightbox-doesnt-show-limited-as-seperate-lines/44698 "2025-10-08T14:03:35Z")

LIGHTBOX DOESNT SHOW LIMITED AS SEPERATE LINES LATELY , WHEN I MOVE THE START AND END OFFSET . THE SELECTED VIEW WILL SCROLL INSTEAD.:sweat\_smile: --- ## [Surface Normal Calculation Issue Using SurfaceNets](https://discourse.slicer.org/t/surface-normal-calculation-issue-using-surfacenets/40811)

**Author:** [@leoavileis](https://discourse.slicer.org/u/leoavileis)\ **Replies:** 6\ **Last updated:** [October 8, 2025, 1:34pm UTC](https://discourse.slicer.org/t/surface-normal-calculation-issue-using-surfacenets/40811 "2025-10-08T13:34:11Z")

Dear community, I’m writing to report an issue that showed up on my project regarding normal calculations when exporting models based on my segmentations. Basically when I export the models while SurfaceNets rendering i… --- ## [I'm Beginner and i want help](https://discourse.slicer.org/t/im-beginner-and-i-want-help/44679)

**Author:** [@Ghaith](https://discourse.slicer.org/u/Ghaith)\ **Replies:** 8\ **Last updated:** [October 8, 2025, 1:05pm UTC](https://discourse.slicer.org/t/im-beginner-and-i-want-help/44679 "2025-10-08T13:05:02Z")

Greetings I’m a biomedical engineering student and I have installed 3D slicer I’m struggling with everything :confused: I want Dicom files and sources please Is there anyone can help Is there any community on WhatsAp… [Previous page](https://discourse.slicer.org/latest.md?page=35) [Next page](https://discourse.slicer.org/latest.md?page=37)