# Support

**URL:** https://discourse.slicer.org/c/support/11.md?no_subcategories=false&page=79

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

**Page:** 80

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## [Can you change the size of the segmentation?](https://discourse.slicer.org/t/can-you-change-the-size-of-the-segmentation/37859)

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**Author:** [@Daniel\_Murcia](https://discourse.slicer.org/u/Daniel_Murcia)\
**Replies:** 1\
**Last updated:** [August 14, 2024, 4:10am UTC](https://discourse.slicer.org/t/can-you-change-the-size-of-the-segmentation/37859 "2024-08-14T04:10:09Z")

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Hello community, a question, I made a segmentation of some structures in millimeters (mm) but I realized that my image had a scale in microns (um), I then made the change from millimeters to microns in the configurations…

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## [Slicer for Nuclear Medicine OAR Contouring](https://discourse.slicer.org/t/slicer-for-nuclear-medicine-oar-contouring/37862)

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**Author:** [@Physics](https://discourse.slicer.org/u/Physics)\
**Replies:** 1\
**Last updated:** [August 13, 2024, 7:14pm UTC](https://discourse.slicer.org/t/slicer-for-nuclear-medicine-oar-contouring/37862 "2024-08-13T19:14:46Z")

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How would one use Slicer for Nuclear Medicine with python programming & image processing to produce or develop better algorithms for Organs At Risk Volume Contouring?

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## [Crop volume / resample scalar slowness for large image](https://discourse.slicer.org/t/crop-volume-resample-scalar-slowness-for-large-image/34985)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 7\
**Last updated:** [August 12, 2024, 11:16pm UTC](https://discourse.slicer.org/t/crop-volume-resample-scalar-slowness-for-large-image/34985 "2024-08-12T23:16:38Z")

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I sometimes use CropVolume to supersample some of my volumes. For large volumes (e.g., expected size after supersampling is ~20GB), resamplescalarvolume runs multithreadedly (utilizing all cores) and then there is a real…

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## [2024.08.02 to 2024.08.06: latest macOS packages will \*not\* be built while machine is relocated](https://discourse.slicer.org/t/2024-08-02-to-2024-08-06-latest-macos-packages-will-not-be-built-while-machine-is-relocated/37610)

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**Author:** [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Replies:** 1\
**Last updated:** [August 12, 2024, 9:29pm UTC](https://discourse.slicer.org/t/2024-08-02-to-2024-08-06-latest-macos-packages-will-not-be-built-while-machine-is-relocated/37610 "2024-08-12T21:29:26Z")

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The macOS system named “computron” will be temporarily unavailable from 2024-08-02T21:00:00Z (UTC)→2024-08-07T16:00:00Z (UTC) due to its physical relocation to a different Kitware location. Implications for users Dur…

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## [Flipped NIFTI image compared to original Nrrd File](https://discourse.slicer.org/t/flipped-nifti-image-compared-to-original-nrrd-file/479)

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**Author:** [@belleauel](https://discourse.slicer.org/u/belleauel)\
**Replies:** 12\
**Last updated:** [August 12, 2024, 8:56pm UTC](https://discourse.slicer.org/t/flipped-nifti-image-compared-to-original-nrrd-file/479 "2024-08-12T20:56:58Z")

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Operating system: Slicer version: Expected behavior: Actual behavior: Hello Slicer Experts, I had done some initial processing of my DTI data in Slicer. Now, I have converted the files to nifti via DWIConvert so t…

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## [SAM 2 from Meta (Segment Anything Model)](https://discourse.slicer.org/t/sam-2-from-meta-segment-anything-model/37794)

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**Author:** [@marcosncosta1](https://discourse.slicer.org/u/marcosncosta1)\
**Replies:** 0\
**Last updated:** [August 9, 2024, 7:29am UTC](https://discourse.slicer.org/t/sam-2-from-meta-segment-anything-model/37794 "2024-08-09T07:29:50Z")

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Hello everyone, I just wanted to check if anyone has seen this and thought about implementing into the Total Segmentator. I feel like the Total Segmentator is really good already but when it comes to segmenting vertebra…

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## [Which algorithm is used to make 3d model by default？](https://discourse.slicer.org/t/which-algorithm-is-used-to-make-3d-model-by-default/37838)

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**Author:** [@Jiacheng\_Qi](https://discourse.slicer.org/u/Jiacheng_Qi)\
**Replies:** 0\
**Last updated:** [August 12, 2024, 4:48am UTC](https://discourse.slicer.org/t/which-algorithm-is-used-to-make-3d-model-by-default/37838 "2024-08-12T04:48:21Z")

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Hello, I used 3d slicer to make a 3d model from a series tiff images. But I don’t know which algorithm is used here. Does anyone knows? Thanks in advance!

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## [3d Brain modeling question from Flair MRI](https://discourse.slicer.org/t/3d-brain-modeling-question-from-flair-mri/37836)

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**Author:** [@lannid](https://discourse.slicer.org/u/lannid)\
**Replies:** 0\
**Last updated:** [August 11, 2024, 7:55pm UTC](https://discourse.slicer.org/t/3d-brain-modeling-question-from-flair-mri/37836 "2024-08-11T19:55:19Z")

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I have been following IZ Labs’ tutorial on how to convert .dicom images to a 3d model. Ive utalized the swissscullstripper and various thresholds, but I seem to be having a problem on the lower half of my brain model.…

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## [3D Slicer Elastix registration run files problem](https://discourse.slicer.org/t/3d-slicer-elastix-registration-run-files-problem/37818)

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**Author:** [@ofiradayo](https://discourse.slicer.org/u/ofiradayo)\
**Replies:** 0\
**Last updated:** [August 10, 2024, 1:05pm UTC](https://discourse.slicer.org/t/3d-slicer-elastix-registration-run-files-problem/37818 "2024-08-10T13:05:11Z")

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could not run the 3d slider elastix registration CT and mri files on linux server error: load volume filename1 load volume filename2 command elastix return non zero attached the converting code from dicom to nifti

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## [Misaligned / distorted image](https://discourse.slicer.org/t/misaligned-distorted-image/37749)

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**Author:** [@alexis\_rodz](https://discourse.slicer.org/u/alexis_rodz)\
**Replies:** 1\
**Last updated:** [August 9, 2024, 11:21pm UTC](https://discourse.slicer.org/t/misaligned-distorted-image/37749 "2024-08-09T23:21:16Z")

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Hello, I am having trouble with the alignment of this heart. I loaded tiff files that came from a micro CT scan and noticed that both the 2D and volume rendered are misaligned and distorted. I’ve tried changing the z sp…

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## [How to Export Domain and 3D Cads](https://discourse.slicer.org/t/how-to-export-domain-and-3d-cads/37804)

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**Author:** [@Shadi\_Tashakori](https://discourse.slicer.org/u/Shadi_Tashakori)\
**Replies:** 0\
**Last updated:** [August 9, 2024, 9:09pm UTC](https://discourse.slicer.org/t/how-to-export-domain-and-3d-cads/37804 "2024-08-09T21:09:37Z")

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Hi I just need to extract some 3D data, hopefully and Preferably something in .SAT format. but as 3d slicer just exports .stl files, I just have a shell from my segmentation, does anybody have an idea about what should …

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## [Download of extension failed](https://discourse.slicer.org/t/download-of-extension-failed/37780)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 5\
**Last updated:** [August 9, 2024, 8:25am UTC](https://discourse.slicer.org/t/download-of-extension-failed/37780 "2024-08-09T08:25:48Z")

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I am trying to test our new extension SlicerEditor, which was integrated into the extension catalog a few days ago. According to Cdash everything is ok. Extension is also appears in the catalog, but when I try to install…

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## [How to establish the connection between 3D slicer and NDI Polaris Vega ST?](https://discourse.slicer.org/t/how-to-establish-the-connection-between-3d-slicer-and-ndi-polaris-vega-st/37795)

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**Author:** [@ning\_w](https://discourse.slicer.org/u/ning_w)\
**Replies:** 0\
**Last updated:** [August 9, 2024, 8:10am UTC](https://discourse.slicer.org/t/how-to-establish-the-connection-between-3d-slicer-and-ndi-polaris-vega-st/37795 "2024-08-09T08:10:49Z")

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Method 1: Can I directly use the SlicerOpenIGTLink plug-in to establish a connection with NDI? Only use this plug-in without using any other software Method 2: Use Plus Server to establish a connection with NDP, and the…

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## [Which .xml file is needed to configure the PLUS server of NDI Polaris Vega ST](https://discourse.slicer.org/t/which-xml-file-is-needed-to-configure-the-plus-server-of-ndi-polaris-vega-st/37770)

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**Author:** [@ning\_w](https://discourse.slicer.org/u/ning_w)\
**Replies:** 1\
**Last updated:** [August 8, 2024, 2:35pm UTC](https://discourse.slicer.org/t/which-xml-file-is-needed-to-configure-the-plus-server-of-ndi-polaris-vega-st/37770 "2024-08-08T14:35:21Z")

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This is my first time to learn about plus server. I just downloaded the plus software and want to configure the plus server software for NDI polaris Vega ST, but I don’t know which .xml file I need to use. Can anyone tel…

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## [Can structures be counted in 3D Slicer from SEM image?](https://discourse.slicer.org/t/can-structures-be-counted-in-3d-slicer-from-sem-image/37778)

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**Author:** [@Daniel\_Murcia](https://discourse.slicer.org/u/Daniel_Murcia)\
**Replies:** 0\
**Last updated:** [August 8, 2024, 2:22pm UTC](https://discourse.slicer.org/t/can-structures-be-counted-in-3d-slicer-from-sem-image/37778 "2024-08-08T14:22:29Z")

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Hello, good morning community. A query with a 3D slicer can count automatically defined structures, I attach an example image. I want to count the facets that this compound eye has, but I don’t want to do it manually sin…

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## [HounsField Units for CT scans](https://discourse.slicer.org/t/hounsfield-units-for-ct-scans/33668)

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**Author:** [@Varsha](https://discourse.slicer.org/u/Varsha)\
**Replies:** 5\
**Last updated:** [August 8, 2024, 1:34pm UTC](https://discourse.slicer.org/t/hounsfield-units-for-ct-scans/33668 "2024-08-08T13:34:06Z")

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Hi. I am trying to select a range of HU to work with my CT images (primarily because I want to visualise trabecular changes of the bone). Is selecting a threshold under “Segment Editor” the same as setting an HU range? O…

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## [Slicer + Plus Server Connection Error](https://discourse.slicer.org/t/slicer-plus-server-connection-error/27106)

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**Author:** [@Kush\_Hari](https://discourse.slicer.org/u/Kush_Hari)\
**Replies:** 3\
**Last updated:** [August 8, 2024, 12:20pm UTC](https://discourse.slicer.org/t/slicer-plus-server-connection-error/27106 "2024-08-08T12:20:04Z")

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Hi, I am attempting to obtain the appropriate transforms for a configuration of NDI markers. I am using the Polaris Vega VT camera, and the Plus Remote module on Slicer. When I launch the Plus server individually, the c…

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## [Load .raw microCT data with .vgi metadata](https://discourse.slicer.org/t/load-raw-microct-data-with-vgi-metadata/37732)

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**Author:** [@mpuig](https://discourse.slicer.org/u/mpuig)\
**Replies:** 2\
**Last updated:** [August 8, 2024, 9:43am UTC](https://discourse.slicer.org/t/load-raw-microct-data-with-vgi-metadata/37732 "2024-08-08T09:43:52Z")

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Hello, I am trying to load .raw data, that are paired with rich .vgi metadata. I’m aware of the RawImageGuess module, But is there not a way to directly use the .vgi file in conjunction with a .raw file? For the sake o…

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## [How to pickle 'MRMLCorePython.vtkMRMLScene' object](https://discourse.slicer.org/t/how-to-pickle-mrmlcorepython-vtkmrmlscene-object/37733)

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**Author:** [@alientex](https://discourse.slicer.org/u/alientex)\
**Replies:** 1\
**Last updated:** [August 8, 2024, 4:46am UTC](https://discourse.slicer.org/t/how-to-pickle-mrmlcorepython-vtkmrmlscene-object/37733 "2024-08-08T04:46:15Z")

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Hello everyone, Does anyone know how to pickle an arbitrary object type like MRMLCorePython.vtkMRMLScene in python? I am trying to start a process from the main process by passing the function SaveSceneToSlicerDataBund…

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## [Render registration result](https://discourse.slicer.org/t/render-registration-result/37757)

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**Author:** [@fqzhice](https://discourse.slicer.org/u/fqzhice)\
**Replies:** 0\
**Last updated:** [August 8, 2024, 2:01am UTC](https://discourse.slicer.org/t/render-registration-result/37757 "2024-08-08T02:01:11Z")

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Hi, all. This question is related to Rendering for CT and dsa registration - Development - 3D Slicer Community My partner want to display projected plane . and take 3d view as renderwindow the reques is as below: 1-…

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## [Dynamic Modeler Basics](https://discourse.slicer.org/t/dynamic-modeler-basics/37748)

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**Author:** [@cepehde](https://discourse.slicer.org/u/cepehde)\
**Replies:** 1\
**Last updated:** [August 7, 2024, 3:05pm UTC](https://discourse.slicer.org/t/dynamic-modeler-basics/37748 "2024-08-07T15:05:02Z")

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I am still trying to understand the basics of Slicer. I think I was able to change segmentation to a model but still not able to get the Dynamic Model functions to work (such as plane cut). I know this is very basic bu…

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## [Error in ALPACA/MALPACA with photogrammetry meshes](https://discourse.slicer.org/t/error-in-alpaca-malpaca-with-photogrammetry-meshes/37709)

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**Author:** [@ATroyelli](https://discourse.slicer.org/u/ATroyelli)\
**Replies:** 9\
**Last updated:** [August 6, 2024, 8:26pm UTC](https://discourse.slicer.org/t/error-in-alpaca-malpaca-with-photogrammetry-meshes/37709 "2024-08-06T20:26:07Z")

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Operating system: Windows 10 pro (X64) Slicer version: 5.6.2 Expected behavior: I hope to be able to automatically place landmarks in 3D meshes generated by photogrammetry, employing templates made with microtomography…

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## [Create Larger Segment](https://discourse.slicer.org/t/create-larger-segment/37726)

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**Author:** [@Chuns\_SS](https://discourse.slicer.org/u/Chuns_SS)\
**Replies:** 2\
**Last updated:** [August 6, 2024, 8:00pm UTC](https://discourse.slicer.org/t/create-larger-segment/37726 "2024-08-06T20:00:21Z")

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Hello, is there a way to create a bigger segment off the one you created. For example I would like to create a new segment of a kidney that is exactly 1cm larger than in all dimensions

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## [Origin of CT Chest Sample Data](https://discourse.slicer.org/t/origin-of-ct-chest-sample-data/37731)

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**Author:** [@ehawkes](https://discourse.slicer.org/u/ehawkes)\
**Replies:** 2\
**Last updated:** [August 6, 2024, 6:56pm UTC](https://discourse.slicer.org/t/origin-of-ct-chest-sample-data/37731 "2024-08-06T18:56:43Z")

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Does Slicer have information on the origin of the CT-Chest scan in the Sample Data module? The Help & Acknowledgement tab within the Sample Data module mentions where some of the other scans come from, but doesn’t mentio…

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## [Cdash shows no mac builds for todays preview](https://discourse.slicer.org/t/cdash-shows-no-mac-builds-for-todays-preview/37739)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 1\
**Last updated:** [August 6, 2024, 4:55pm UTC](https://discourse.slicer.org/t/cdash-shows-no-mac-builds-for-todays-preview/37739 "2024-08-06T16:55:11Z")

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Are they delayed or some other issue? @jcfr @Sam\_Horvath

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## [Failed to fetch Sample from MONAI Label Server.](https://discourse.slicer.org/t/failed-to-fetch-sample-from-monai-label-server/37735)

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**Author:** [@sowwn](https://discourse.slicer.org/u/sowwn)\
**Replies:** 0\
**Last updated:** [August 6, 2024, 2:07pm UTC](https://discourse.slicer.org/t/failed-to-fetch-sample-from-monai-label-server/37735 "2024-08-06T14:07:43Z")

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Hello everyone, Can you guys help me with this issue? I deploy the MONAILabel server on Ubuntu, I connect to that IP on Mac. The connection is okay, but when I push on the Next Sample button, I get this error. The …

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## [Male genitalia segmentation](https://discourse.slicer.org/t/male-genitalia-segmentation/37734)

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**Author:** [@dmm](https://discourse.slicer.org/u/dmm)\
**Replies:** 0\
**Last updated:** [August 6, 2024, 2:07pm UTC](https://discourse.slicer.org/t/male-genitalia-segmentation/37734 "2024-08-06T14:07:40Z")

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Operating system: Any Slicer version:5.6.2 Expected behavior: Actual behavior: Nice work, however would like to segment also male genitalia (testes, epididymis, corpus cavernosum and spongiosum,…), any existing solut…

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## [Rendering of a RGB and a scalar volume in the same scene](https://discourse.slicer.org/t/rendering-of-a-rgb-and-a-scalar-volume-in-the-same-scene/37699)

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**Author:** [@micgriffa](https://discourse.slicer.org/u/micgriffa)\
**Replies:** 3\
**Last updated:** [August 6, 2024, 12:49pm UTC](https://discourse.slicer.org/t/rendering-of-a-rgb-and-a-scalar-volume-in-the-same-scene/37699 "2024-08-06T12:49:31Z")

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Dear 3D Slicer users and developers, I’m wondering whether it is already possible to render, within the same 3D scene, a scalar volume along with an RGB volume, with the possibility of setting one of the two, e.g., the …

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## [Acquisition of coordinates post SPHARM/Procrustes for analysis](https://discourse.slicer.org/t/acquisition-of-coordinates-post-spharm-procrustes-for-analysis/32643)

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**Author:** [@Hoai-Nam\_Bui](https://discourse.slicer.org/u/Hoai-Nam_Bui)\
**Replies:** 0\
**Last updated:** [November 7, 2023, 3:41pm UTC](https://discourse.slicer.org/t/acquisition-of-coordinates-post-spharm-procrustes-for-analysis/32643 "2023-11-07T15:41:05Z")

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Good morning! I have a dataset of 51 different vertebrae I am analyzing for shape variation. I’ve utilized the population analysis module to export the PCA data in the json format and acquired the first two PCs from the…

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## [Problems with the Virtual Reality Module](https://discourse.slicer.org/t/problems-with-the-virtual-reality-module/36589)

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**Author:** [@karl](https://discourse.slicer.org/u/karl)\
**Replies:** 15\
**Last updated:** [August 6, 2024, 11:08am UTC](https://discourse.slicer.org/t/problems-with-the-virtual-reality-module/36589 "2024-08-06T11:08:31Z")

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Hello dear community, I am trying to get the VR Module to run since a couple of hours now. I tried with Quest 3 + Quest Controller. I tried with Varjo VR3 and Vive Controllers. I run into serious interaction problems…

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