# Latest

**URL:** https://discourse.slicer.org/latest.md?page=17

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

**Page:** 18

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## [Renal Artery Segmentation: Recommendations using AVT Dataset](https://discourse.slicer.org/t/renal-artery-segmentation-recommendations-using-avt-dataset/46669)

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**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")

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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,…

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## [Radiosteriormetric analysis- finding micromotion of knee replacement implant](https://discourse.slicer.org/t/radiosteriormetric-analysis-finding-micromotion-of-knee-replacement-implant/46667)

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**Author:** [@vinothkumar](https://discourse.slicer.org/u/vinothkumar)\
**Replies:** 0\
**Last updated:** [April 6, 2026, 12:18pm UTC](https://discourse.slicer.org/t/radiosteriormetric-analysis-finding-micromotion-of-knee-replacement-implant/46667 "2026-04-06T12:18:11Z")

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radiosteriometric analysis is a method to find metal implants implanted in bone over time. I am doing research on micromotion of knee implant in osteoporotic patients over two years by comparing the distance between meta…

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## [Autoscoper crashes when trying to load](https://discourse.slicer.org/t/autoscoper-crashes-when-trying-to-load/45790)

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**Author:** [@Janae](https://discourse.slicer.org/u/Janae)\
**Replies:** 11\
**Last updated:** [April 6, 2026, 11:02am UTC](https://discourse.slicer.org/t/autoscoper-crashes-when-trying-to-load/45790 "2026-04-06T11:02:19Z")

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Hello, I have not been able to successfully open Autoscoper and have been receiving the error message included below. I have Slicer 5.10.0 and Autoscoper last update “Mon Nov 10 2025 (Revision: 85cd82f)”. A coworker wi…

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## [3d ultrasound from GE upload in 3d slicer](https://discourse.slicer.org/t/3d-ultrasound-from-ge-upload-in-3d-slicer/44827)

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**Author:** [@mvergnat](https://discourse.slicer.org/u/mvergnat)\
**Replies:** 1\
**Last updated:** [April 6, 2026, 12:33am UTC](https://discourse.slicer.org/t/3d-ultrasound-from-ge-upload-in-3d-slicer/44827 "2026-04-06T00:33:43Z")

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Dear 3dslicer community I use slicer 5.8.1 on PC Windows 10 pro in the past, I imported 3d from Philips into slicer without problem (cartesian dicoms and then 4d philips patch in slicer…). Now we have GE datasets and…

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## [Debugging application crash](https://discourse.slicer.org/t/debugging-application-crash/46531)

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**Author:** [@sogo](https://discourse.slicer.org/u/sogo)\
**Replies:** 5\
**Last updated:** [April 5, 2026, 9:29pm UTC](https://discourse.slicer.org/t/debugging-application-crash/46531 "2026-04-05T21:29:45Z")

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I am in process of merging our organization’s SW pipeline based on top of Slicer-4.11 into Slicer-5.10. While I am able to merge and resolve merge conflicts, my application is crashing on startup. I was following the sta…

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## [OpenIGTLinkIF not updating transforms](https://discourse.slicer.org/t/openigtlinkif-not-updating-transforms/36992)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 6\
**Last updated:** [April 4, 2026, 8:31pm UTC](https://discourse.slicer.org/t/openigtlinkif-not-updating-transforms/36992 "2026-04-04T20:31:45Z")

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I am trying to troubleshoot using an NDI trakSTAR electromagnetic 3D tracker using OpenIGTLinkIF. I have gotten the same system working on other computers, but am running into an odd error where the tracked transforms a…

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## [SlicerVMTK is not being built for preview](https://discourse.slicer.org/t/slicervmtk-is-not-being-built-for-preview/46647)

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**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 4\
**Last updated:** [April 4, 2026, 9:20am UTC](https://discourse.slicer.org/t/slicervmtk-is-not-being-built-for-preview/46647 "2026-04-04T09:20:10Z")

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SlicerVMTK fails to build on cdash since a few weeks. The reported errors hint towards an environment problem on the build machines. It builds fine on Arch. Thanks for having a look.

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## [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)

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**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")

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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…

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## [Spatial information in 2D segmentations](https://discourse.slicer.org/t/spatial-information-in-2d-segmentations/46642)

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**Author:** [@Antmaker](https://discourse.slicer.org/u/Antmaker)\
**Replies:** 5\
**Last updated:** [April 3, 2026, 9:55pm UTC](https://discourse.slicer.org/t/spatial-information-in-2d-segmentations/46642 "2026-04-03T21:55:40Z")

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According to this post, 2D segmentation is possible in 3D Slicer. I am trying to figure out whether it is possible to incorporate spatial information such that I may calculate “area” instead of “volume (Volume Statistics…

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## [Using getImageCropped function in PyAutoscoper. Getting truncated/empty data](https://discourse.slicer.org/t/using-getimagecropped-function-in-pyautoscoper-getting-truncated-empty-data/46471)

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**Author:** [@Prabhroop\_Singh](https://discourse.slicer.org/u/Prabhroop_Singh)\
**Replies:** 3\
**Last updated:** [April 3, 2026, 7:28pm UTC](https://discourse.slicer.org/t/using-getimagecropped-function-in-pyautoscoper-getting-truncated-empty-data/46471 "2026-04-03T19:28:21Z")

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I’m trying to use getImageCropped from PyAutoscoper to extract the cropped DRR image of a volume at a given pose. My setup works fine otherwise – getPose, getNCC, optimizeFrame, and trackingDialog all work correctly. Thi…

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## [Fast Model Align module not working in 3D Slicer 5.10.0](https://discourse.slicer.org/t/fast-model-align-module-not-working-in-3d-slicer-5-10-0/46645)

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**Author:** [@abhijeet2410](https://discourse.slicer.org/u/abhijeet2410)\
**Replies:** 1\
**Last updated:** [April 3, 2026, 4:02am UTC](https://discourse.slicer.org/t/fast-model-align-module-not-working-in-3d-slicer-5-10-0/46645 "2026-04-03T04:02:26Z")

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Hello Team, We installed the SlicerMorph extension successfully (it shows up in Extension Manager), but the Fast Model Align module is not working properly. When we open the module, we only see the Help & Acknowledge…

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## [Screen Capture and Screenshot export issues](https://discourse.slicer.org/t/screen-capture-and-screenshot-export-issues/46621)

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**Author:** [@Atticus](https://discourse.slicer.org/u/Atticus)\
**Replies:** 7\
**Last updated:** [April 2, 2026, 4:49pm UTC](https://discourse.slicer.org/t/screen-capture-and-screenshot-export-issues/46621 "2026-04-02T16:49:51Z")

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Hi community! I am trying to export images from 3D renders (transparent PNGs). Currently running 3DSlicer 5.10 on Win11. Issue 1: When using the Screen Capture module, if the default output file name is changed, the e…

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## [BQML to SUV (how to do automatically while loading DICOM data)](https://discourse.slicer.org/t/bqml-to-suv-how-to-do-automatically-while-loading-dicom-data/46583)

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**Author:** [@Divi](https://discourse.slicer.org/u/Divi)\
**Replies:** 4\
**Last updated:** [April 2, 2026, 2:40pm UTC](https://discourse.slicer.org/t/bqml-to-suv-how-to-do-automatically-while-loading-dicom-data/46583 "2026-04-02T14:40:48Z")

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I’m trying to do segmentation and quantification, but my values are too high (maybe its BQML) and I need it to be SUV values. Could you help me on how to do this?

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## [Freehand ultrasound in 3D Slicer: image inverted during recording](https://discourse.slicer.org/t/freehand-ultrasound-in-3d-slicer-image-inverted-during-recording/46592)

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**Author:** [@daandevlieger2-alt](https://discourse.slicer.org/u/daandevlieger2-alt)\
**Replies:** 3\
**Last updated:** [April 2, 2026, 1:43pm UTC](https://discourse.slicer.org/t/freehand-ultrasound-in-3d-slicer-image-inverted-during-recording/46592 "2026-04-02T13:43:09Z")

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Hi everyone, I’m using 3D Slicer (version 5.8.1) together with an OptiTrack V120 Trio and the PLUS/ArtUS setup for 3D freehand ultrasound. I’m encountering an issue where, during acquisition, the ultrasound image is st…

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## [I can not open saved files/ GPA](https://discourse.slicer.org/t/i-can-not-open-saved-files-gpa/46504)

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**Author:** [@Saaalz](https://discourse.slicer.org/u/Saaalz)\
**Replies:** 2\
**Last updated:** [April 2, 2026, 8:18am UTC](https://discourse.slicer.org/t/i-can-not-open-saved-files-gpa/46504 "2026-04-02T08:18:39Z")

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Please, I don’t know why I can’t open saved file/ 3D slicer / GPA, saved data is there and has size, however, when I try to open give me the following message. I just started using the Slicer few weeks ago only. Thank yo…

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## [Multi-Class Segmentation with CT + Aligned STL (Dental Dataset)](https://discourse.slicer.org/t/multi-class-segmentation-with-ct-aligned-stl-dental-dataset/46636)

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**Author:** [@abhijeet2410](https://discourse.slicer.org/u/abhijeet2410)\
**Replies:** 0\
**Last updated:** [April 2, 2026, 6:37am UTC](https://discourse.slicer.org/t/multi-class-segmentation-with-ct-aligned-stl-dental-dataset/46636 "2026-04-02T06:37:36Z")

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Operating system: Window Slicer version: 3 D Slicer 5. 10.0 :brain: Question: Multi-Class Segmentation with CT + Aligned STL (Dental Dataset) I am working on a dental AI dataset pipeline where I have: CT scan (DICO…

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## [Brain lobe segmentation](https://discourse.slicer.org/t/brain-lobe-segmentation/46620)

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**Author:** [@doctoryfx](https://discourse.slicer.org/u/doctoryfx)\
**Replies:** 1\
**Last updated:** [April 1, 2026, 4:06pm UTC](https://discourse.slicer.org/t/brain-lobe-segmentation/46620 "2026-04-01T16:06:50Z")

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Hello everyone, I’m planning to perform brain lobe segmentation on brain MRI images—specifically dividing the whole brain into different lobes such as the frontal lobe, temporal lobe, parietal lobe, and occipital lobe—be…

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## [Mac preview release fails to load extensions in the Extension Manager](https://discourse.slicer.org/t/mac-preview-release-fails-to-load-extensions-in-the-extension-manager/46612)

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**Author:** [@DeepaKrishnaswamy](https://discourse.slicer.org/u/DeepaKrishnaswamy)\
**Replies:** 5\
**Last updated:** [April 1, 2026, 3:46pm UTC](https://discourse.slicer.org/t/mac-preview-release-fails-to-load-extensions-in-the-extension-manager/46612 "2026-04-01T15:46:06Z")

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Hi, I installed the latest Slicer Preview Release 2026-03-29 (Slicer 5.11.0 revision 34472) on Mac. I noticed that the extensions are not loading in the Extensions Manager: I checked cdash and noticed many errors, e…

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## [Segmenting the skull base](https://discourse.slicer.org/t/segmenting-the-skull-base/29143)

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**Author:** [@Tannadrake](https://discourse.slicer.org/u/Tannadrake)\
**Replies:** 3\
**Last updated:** [March 31, 2026, 11:58am UTC](https://discourse.slicer.org/t/segmenting-the-skull-base/29143 "2026-03-31T11:58:37Z")

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Hello Slicer Community Background: I am a relatively new 3D slicer user. I am a neurosurgery resident with no programming experience. I am interested in using Slicer to segment neuroimaging for the purposes of 3D printi…

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## [HOW to create an accurate LF1 osteoptomy in slicer](https://discourse.slicer.org/t/how-to-create-an-accurate-lf1-osteoptomy-in-slicer/46613)

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**Author:** [@Drdebraj](https://discourse.slicer.org/u/Drdebraj)\
**Replies:** 0\
**Last updated:** [March 30, 2026, 2:41pm UTC](https://discourse.slicer.org/t/how-to-create-an-accurate-lf1-osteoptomy-in-slicer/46613 "2026-03-30T14:41:44Z")

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HOW can create an accurate LF1 osteoptomy in slicer

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## [Segmentation using curves](https://discourse.slicer.org/t/segmentation-using-curves/46511)

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**Author:** [@mrrezaie](https://discourse.slicer.org/u/mrrezaie)\
**Replies:** 23\
**Last updated:** [March 29, 2026, 2:29pm UTC](https://discourse.slicer.org/t/segmentation-using-curves/46511 "2026-03-29T14:29:42Z")

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Hello all. I’m trying to do MRI segmentation on a very thin and round structure (knee cartilage). I was wondering if there is any to create a surface on a set of polynomial curves like this: Looking forward to heari…

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## [Postdoc & Research Assistant Opening at Human iEEG Lab in NY](https://discourse.slicer.org/t/postdoc-research-assistant-opening-at-human-ieeg-lab-in-ny/46599)

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**Author:** [@sjohnson](https://discourse.slicer.org/u/sjohnson)\
**Replies:** 0\
**Last updated:** [March 28, 2026, 12:37am UTC](https://discourse.slicer.org/t/postdoc-research-assistant-opening-at-human-ieeg-lab-in-ny/46599 "2026-03-28T00:37:06Z")

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Dear all, The human intracranial EEG Laboratory (https://hbmlab-nyc.com) at The Feinstein Institutes for Medical Research – Hofstra Northwell School of Medicine in New York is looking for one postdoc and one research as…

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## [Bug in ImportLabelmapToSegmentationNode if multiple parent transforms](https://discourse.slicer.org/t/bug-in-importlabelmaptosegmentationnode-if-multiple-parent-transforms/46524)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 6\
**Last updated:** [March 26, 2026, 10:30pm UTC](https://discourse.slicer.org/t/bug-in-importlabelmaptosegmentationnode-if-multiple-parent-transforms/46524 "2026-03-26T22:30:19Z")

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A labelmap imported to a segmentation using ImportLabelmapToSegmentationNode is transformed incorrectly if there are multiple parent transforms soft-applied. I have been using ImportLabelmapToSegmentationNode successfull…

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## [Create centerlines in multiple tubes?](https://discourse.slicer.org/t/create-centerlines-in-multiple-tubes/46585)

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**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")

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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…

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## [Merging Patients in DICOM Database](https://discourse.slicer.org/t/merging-patients-in-dicom-database/46580)

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**Author:** [@Lesh3203](https://discourse.slicer.org/u/Lesh3203)\
**Replies:** 1\
**Last updated:** [March 26, 2026, 8:18pm UTC](https://discourse.slicer.org/t/merging-patients-in-dicom-database/46580 "2026-03-26T20:18:42Z")

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Is there a way to merge patients in the DICOM Database? This patient had imaging done at different facilities, and therefore has different patient IDs. As it’s all the same patient, I would love to merge them into one pa…

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## [Linear Measurements on CT scans using Ruler tool](https://discourse.slicer.org/t/linear-measurements-on-ct-scans-using-ruler-tool/46586)

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**Author:** [@egrady](https://discourse.slicer.org/u/egrady)\
**Replies:** 4\
**Last updated:** [March 26, 2026, 7:41pm UTC](https://discourse.slicer.org/t/linear-measurements-on-ct-scans-using-ruler-tool/46586 "2026-03-26T19:41:30Z")

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Hello! I am exploring using 3D slicer for my dissertation. I am using CT (dicom) files of several bovid mandibles and need to take a linear measurement of tooth crown height. It seems like the best way to do this is usi…

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## [Diffusion tensor estimation from a manually segmented brain mask](https://discourse.slicer.org/t/diffusion-tensor-estimation-from-a-manually-segmented-brain-mask/46587)

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**Author:** [@Anna\_98](https://discourse.slicer.org/u/Anna_98)\
**Replies:** 1\
**Last updated:** [March 26, 2026, 7:20pm UTC](https://discourse.slicer.org/t/diffusion-tensor-estimation-from-a-manually-segmented-brain-mask/46587 "2026-03-26T19:20:47Z")

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Hey There, I tried to do get an “output DTI volume” with a manually segmented brain mask, but it didn’t work. My workflow (using Version 5.6.2): Generated a automatic brain mask \> convert lablemap to segmentation node…

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## [Smoothing aorta segmentations across time](https://discourse.slicer.org/t/smoothing-aorta-segmentations-across-time/46522)

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**Author:** [@tassiasalles](https://discourse.slicer.org/u/tassiasalles)\
**Replies:** 3\
**Last updated:** [March 26, 2026, 6:25pm UTC](https://discourse.slicer.org/t/smoothing-aorta-segmentations-across-time/46522 "2026-03-26T18:25:13Z")

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Good afternoon, I’m working with aorta segmentation across different cardiac frames and I was wondering if there is any way to smooth the segmentations across time (different cardiac frames) to avoid segmentations incon…

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## [It's possible to use GE Vscan Ultrasound?](https://discourse.slicer.org/t/its-possible-to-use-ge-vscan-ultrasound/36111)

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**Author:** [@ruben99999](https://discourse.slicer.org/u/ruben99999)\
**Replies:** 8\
**Last updated:** [March 26, 2026, 5:33pm UTC](https://discourse.slicer.org/t/its-possible-to-use-ge-vscan-ultrasound/36111 "2026-03-26T17:33:39Z")

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Hello, I am a master student who for his thesis project tries to use a GE Vscan Extend Ultrasound to perform a real-time 3D reconstruction of a phantom. However, from what I’ve read, I don’t think this type of scanner is…

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## ["Editable Area" for segmentation on multiple aspects does not work as intended](https://discourse.slicer.org/t/editable-area-for-segmentation-on-multiple-aspects-does-not-work-as-intended/46563)

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**Author:** [@Silver\_Fish](https://discourse.slicer.org/u/Silver_Fish)\
**Replies:** 0\
**Last updated:** [March 25, 2026, 3:57pm UTC](https://discourse.slicer.org/t/editable-area-for-segmentation-on-multiple-aspects-does-not-work-as-intended/46563 "2026-03-25T15:57:15Z")

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I’ve been founding out that masking(Editable Area) is not working for multiple aspects. Adjusting models from “grow from seed” using Paint tool: When clicking Editable Area - Inside , I’m not able to Paint anything Vi…

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