# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=100

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

**Page:** 101

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## [How to connect two video streams into slicer using plus server](https://discourse.slicer.org/t/how-to-connect-two-video-streams-into-slicer-using-plus-server/35611)

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**Author:** [@David.Xu](https://discourse.slicer.org/u/David.Xu)\
**Replies:** 8\
**Last updated:** [April 22, 2024, 1:58pm UTC](https://discourse.slicer.org/t/how-to-connect-two-video-streams-into-slicer-using-plus-server/35611 "2024-04-22T13:58:16Z")

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I have two cameras to access, how to achieve through plus server and openigtlinkif . The access of a single camera has been completed, how to modify the configuration parameters of plus server when accessing two cameras …

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## [Segment surface calculation](https://discourse.slicer.org/t/segment-surface-calculation/35655)

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**Author:** [@FraP](https://discourse.slicer.org/u/FraP)\
**Replies:** 3\
**Last updated:** [April 22, 2024, 1:52pm UTC](https://discourse.slicer.org/t/segment-surface-calculation/35655 "2024-04-22T13:52:29Z")

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I am using this script to determine the volume and surface area of my segments. segmentationNode = getNode("Segmentation") # Compute segment statistics import SegmentStatistics segStatLogic = SegmentStatistics.SegmentS…

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## [Export Segmentation in DICOM-RT format in ver 5.6.1](https://discourse.slicer.org/t/export-segmentation-in-dicom-rt-format-in-ver-5-6-1/35595)

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**Author:** [@MASAMA](https://discourse.slicer.org/u/MASAMA)\
**Replies:** 1\
**Last updated:** [April 22, 2024, 1:50pm UTC](https://discourse.slicer.org/t/export-segmentation-in-dicom-rt-format-in-ver-5-6-1/35595 "2024-04-22T13:50:18Z")

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Dear everyone, What I would like to do is export the DICOM CT data using MONAI with segmented regions to her DICOM-RT file. I tried the answer with # Export Segmentation in DICOM-RT format before. However, I received th…

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## [Loading volume of several hundred GB](https://discourse.slicer.org/t/loading-volume-of-several-hundred-gb/35615)

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**Author:** [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Replies:** 7\
**Last updated:** [April 22, 2024, 1:43pm UTC](https://discourse.slicer.org/t/loading-volume-of-several-hundred-gb/35615 "2024-04-22T13:43:27Z")

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Hi all, I feel like this topic should have come up over the years but I couldn’t find anything (search on discourse is awful…). What options do we have in Slicer if we want to load a volume of industrial CT that is sev…

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## [Counting the number of segments](https://discourse.slicer.org/t/counting-the-number-of-segments/32251)

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**Author:** [@FraP](https://discourse.slicer.org/u/FraP)\
**Replies:** 18\
**Last updated:** [April 22, 2024, 10:15am UTC](https://discourse.slicer.org/t/counting-the-number-of-segments/32251 "2024-04-22T10:15:49Z")

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I have a volume from which I have segmented several scattered isolated structures. These are the nuclei of a group of cells. I need to count the number of these segments (nuclei). Is there a function to do this? Thank…

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## [Default terminology entry in Application Settings](https://discourse.slicer.org/t/default-terminology-entry-in-application-settings/35180)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 8\
**Last updated:** [April 22, 2024, 7:16am UTC](https://discourse.slicer.org/t/default-terminology-entry-in-application-settings/35180 "2024-04-22T07:16:27Z")

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Through this thread, I just noticed that it is possible to set the default terminology entry through application settings. But when I go there and choose my terminology, select button grays out (and it stay grayed out fo…

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## [Lung deformable image registration](https://discourse.slicer.org/t/lung-deformable-image-registration/35627)

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**Author:** [@Wpy\_K](https://discourse.slicer.org/u/Wpy_K)\
**Replies:** 2\
**Last updated:** [April 22, 2024, 6:11am UTC](https://discourse.slicer.org/t/lung-deformable-image-registration/35627 "2024-04-22T06:11:16Z")

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Hi everyone, I’m a Medical physics student, I’m new for using 3DSlicer. I has problem that I want to deformable image (DIR) organ at risk nearby lung for check about breathing motion effected to other organ nearby lung,…

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## [Cine Cardiac MRI image - short axis view](https://discourse.slicer.org/t/cine-cardiac-mri-image-short-axis-view/35646)

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**Author:** [@Francesca\_Lo\_Iacono](https://discourse.slicer.org/u/Francesca_Lo_Iacono)\
**Replies:** 0\
**Last updated:** [April 21, 2024, 4:05pm UTC](https://discourse.slicer.org/t/cine-cardiac-mri-image-short-axis-view/35646 "2024-04-21T16:05:37Z")

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Hi! I have cardiac cine MRI images of the short axis plane and I want to segment the LV during the systole peak. So I have copy into a folder only the slice of the entire sequence I am interested to and uploaded to slic…

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## [SlicerRadiomics extension on Mac](https://discourse.slicer.org/t/slicerradiomics-extension-on-mac/35637)

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**Author:** [@AlexPigeon](https://discourse.slicer.org/u/AlexPigeon)\
**Replies:** 1\
**Last updated:** [April 21, 2024, 3:07pm UTC](https://discourse.slicer.org/t/slicerradiomics-extension-on-mac/35637 "2024-04-21T15:07:03Z")

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Hello! I just downloaded Slicer 5.7.0. on my Macbook “Ventura 13.2.1”. I wanted to use the SlicerRadiomics extension but I couldn’t find it. I’ve since caught up with the issue in this forum. I wanted to kindly ask if…

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## [Gamma index in 3D slicer](https://discourse.slicer.org/t/gamma-index-in-3d-slicer/35639)

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**Author:** [@azam](https://discourse.slicer.org/u/azam)\
**Replies:** 0\
**Last updated:** [April 21, 2024, 7:39am UTC](https://discourse.slicer.org/t/gamma-index-in-3d-slicer/35639 "2024-04-21T07:39:44Z")

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3D slicer version: 5.2.2 Hi every one I have 2 RT Dose. In the 3D Slicer software, using the gamma comparison module, these dose distributions obtained from the TPS have been compared. In this process, the CT images i…

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## [Need Help To Convert X-Ray Scan to Dexa Scan](https://discourse.slicer.org/t/need-help-to-convert-x-ray-scan-to-dexa-scan/34238)

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**Author:** [@BabyMama937](https://discourse.slicer.org/u/BabyMama937)\
**Replies:** 2\
**Last updated:** [April 20, 2024, 4:37pm UTC](https://discourse.slicer.org/t/need-help-to-convert-x-ray-scan-to-dexa-scan/34238 "2024-04-20T16:37:58Z")

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Hi, can anyone convert a Xray scan to Dexa Scan file? Thanks!

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## [Thresholding series of 2D images](https://discourse.slicer.org/t/thresholding-series-of-2d-images/35610)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 6\
**Last updated:** [April 20, 2024, 3:53pm UTC](https://discourse.slicer.org/t/thresholding-series-of-2d-images/35610 "2024-04-20T15:53:24Z")

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I have a series of 2D images, for which I would like to use the segment editor to mask out the background. It seems fine in the preview, but when I apply there is this ghost of other slices? Is this because of interpola…

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## [Best Practices for Segment Mesher, Cleaver](https://discourse.slicer.org/t/best-practices-for-segment-mesher-cleaver/10796)

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**Author:** [@Fluvio\_Lobo](https://discourse.slicer.org/u/Fluvio_Lobo)\
**Replies:** 3\
**Last updated:** [April 20, 2024, 3:47pm UTC](https://discourse.slicer.org/t/best-practices-for-segment-mesher-cleaver/10796 "2024-04-20T15:47:12Z")

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Hello, Our team is trying to use the segment mesher extension on a multi-material model of breast tissue, segmented from an MRI dataset. We are having great success, but still have some questions related to best practic…

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## [A portable tracking method](https://discourse.slicer.org/t/a-portable-tracking-method/35633)

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**Author:** [@MReza](https://discourse.slicer.org/u/MReza)\
**Replies:** 0\
**Last updated:** [April 20, 2024, 1:59pm UTC](https://discourse.slicer.org/t/a-portable-tracking-method/35633 "2024-04-20T13:59:17Z")

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Hello everyone, I am currently using an OptiTrack system for freehand ultrasound. Could you recommend a much more portable motion-tracking system to replace OptiTrack? Can IMU sensors be used as the sole tracking method…

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## [Asking about multi planes cut in SLicer 3D](https://discourse.slicer.org/t/asking-about-multi-planes-cut-in-slicer-3d/35630)

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**Author:** [@viet\_duc\_Vu](https://discourse.slicer.org/u/viet_duc_Vu)\
**Replies:** 0\
**Last updated:** [April 20, 2024, 4:09am UTC](https://discourse.slicer.org/t/asking-about-multi-planes-cut-in-slicer-3d/35630 "2024-04-20T04:09:20Z")

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Hello, recently, I try to find out the way slicer 3D can create connected multiple cutting-planes for surgical planning purpose. (for example: planning 3D bilateral sagittal split osteotomy, which requires standardly 3 …

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## [Should Slicer DICOM storage listener respond to C-ECHO?](https://discourse.slicer.org/t/should-slicer-dicom-storage-listener-respond-to-c-echo/35111)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 13\
**Last updated:** [April 20, 2024, 12:08am UTC](https://discourse.slicer.org/t/should-slicer-dicom-storage-listener-respond-to-c-echo/35111 "2024-04-20T00:08:54Z")

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Could someone verify whether a Slicer DICOM storage listener should respond to a C-ECHO request? When I try, I do not get a response, instead it immediately aborts (A-ABORT with Abort Source: service-user). # Minimal C…

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## [Threshold values of Imagestacks](https://discourse.slicer.org/t/threshold-values-of-imagestacks/35609)

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**Author:** [@ypd04474](https://discourse.slicer.org/u/ypd04474)\
**Replies:** 3\
**Last updated:** [April 19, 2024, 4:16pm UTC](https://discourse.slicer.org/t/threshold-values-of-imagestacks/35609 "2024-04-19T16:16:17Z")

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Hello, seniors I reconstructed the 2D image in three dimensions using the imagestacks of the SlicerMorph module. I like how the Imageacks generates features. I want to create the same in the segmentation editor, but I…

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## [Unable to compute the ferret diameter on segmentation from totalsegmentator](https://discourse.slicer.org/t/unable-to-compute-the-ferret-diameter-on-segmentation-from-totalsegmentator/35623)

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**Author:** [@Matteboo](https://discourse.slicer.org/u/Matteboo)\
**Replies:** 3\
**Last updated:** [April 19, 2024, 3:15pm UTC](https://discourse.slicer.org/t/unable-to-compute-the-ferret-diameter-on-segmentation-from-totalsegmentator/35623 "2024-04-19T15:15:29Z")

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Hello, I did the following step : Load “CT Chest” from the sample data module Segment it using totalsegmentator (task total, fast mode activated) Compute the statistic using the “Segment Statistics” module, it’…

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## [VMTK Module - How to calculate the parameters?](https://discourse.slicer.org/t/vmtk-module-how-to-calculate-the-parameters/35621)

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**Author:** [@Yuri\_Cocati](https://discourse.slicer.org/u/Yuri_Cocati)\
**Replies:** 0\
**Last updated:** [April 19, 2024, 1:57pm UTC](https://discourse.slicer.org/t/vmtk-module-how-to-calculate-the-parameters/35621 "2024-04-19T13:57:41Z")

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The VMTK module returns parameters such as curvature, tortuosity and twist. I would like to know what methods were used to obtain the values ​​from the center line of a vessel or organ, please. I tried to check the code …

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## [Cannot load RTSTRUCT file](https://discourse.slicer.org/t/cannot-load-rtstruct-file/35593)

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**Author:** [@Freja](https://discourse.slicer.org/u/Freja)\
**Replies:** 3\
**Last updated:** [April 19, 2024, 9:45am UTC](https://discourse.slicer.org/t/cannot-load-rtstruct-file/35593 "2024-04-19T09:45:31Z")

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Operating system: MacOS Slicer version: 5.6.2 Hello I have a problem with loading RTSTRUCT files (RS.dcm) in 3Dslicer. The data is imported without any error massages, and I can see the files in the “DICOM database” w…

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## [Appimage - for linux systems](https://discourse.slicer.org/t/appimage-for-linux-systems/35594)

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**Author:** [@Bob5](https://discourse.slicer.org/u/Bob5)\
**Replies:** 2\
**Last updated:** [April 18, 2024, 11:40pm UTC](https://discourse.slicer.org/t/appimage-for-linux-systems/35594 "2024-04-18T23:40:44Z")

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Hi! Building/installing 3dslicer on some linux systems is not easy, not fast, not fun. Is it possible to provide appimage for download? Just like many of software do, freecad, cura slicer, kicad etc. Thank You for Your…

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## [Error writing settings on MacOS](https://discourse.slicer.org/t/error-writing-settings-on-macos/35573)

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**Author:** [@lskog](https://discourse.slicer.org/u/lskog)\
**Replies:** 4\
**Last updated:** [April 18, 2024, 9:01pm UTC](https://discourse.slicer.org/t/error-writing-settings-on-macos/35573 "2024-04-18T21:01:10Z")

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My slicer cannot save any settings I try to change, even its basic ones. I tried to give it the whole disk permissions, but still nothing. All I can see in console is: \[Qt\] Error #1 while writing setting “ApplicationUpd…

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## [How to use registration for CT scans to create 3D models?](https://discourse.slicer.org/t/how-to-use-registration-for-ct-scans-to-create-3d-models/35548)

<div class="topic-metadata">

**Author:** [@ylee](https://discourse.slicer.org/u/ylee)\
**Replies:** 2\
**Last updated:** [April 18, 2024, 5:44pm UTC](https://discourse.slicer.org/t/how-to-use-registration-for-ct-scans-to-create-3d-models/35548 "2024-04-18T17:44:42Z")

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Operating system: Windows 10 Slicer version: Slicer 5.4.0 Hi all, I am trying to use registration for CT scans of the nasal airway to create 3D models, using one scan as the posterior portion of the airway and another …

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## [Is this a virus?](https://discourse.slicer.org/t/is-this-a-virus/35592)

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**Author:** [@Nilabhra\_Banerjee](https://discourse.slicer.org/u/Nilabhra_Banerjee)\
**Replies:** 1\
**Last updated:** [April 18, 2024, 3:50pm UTC](https://discourse.slicer.org/t/is-this-a-virus/35592 "2024-04-18T15:50:08Z")

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I installed 3Dslicer for windows. The Bitdefender immediately gave me notice as The file C:\\Users\\nilab\\AppData\\Local\\slicer.org\\Slicer 5.6.2\\lib\\Slicer-5.6\\CTKImageProcessingITKCorePythonQt.pyd is infected with Gen:Var…

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## [Slicer rejects modified Header](https://discourse.slicer.org/t/slicer-rejects-modified-header/35549)

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**Author:** [@GaryPlayer](https://discourse.slicer.org/u/GaryPlayer)\
**Replies:** 3\
**Last updated:** [April 18, 2024, 3:40pm UTC](https://discourse.slicer.org/t/slicer-rejects-modified-header/35549 "2024-04-18T15:40:17Z")

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I am trying to add space directions to an nrrd file that was created using pynrrd. If I modify the header of the nrrd file, I am getting an error in Slicer: ITK exception info: error in unknown: Could not create IO ob…

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## [Plus remote necessity](https://discourse.slicer.org/t/plus-remote-necessity/35600)

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**Author:** [@MReza](https://discourse.slicer.org/u/MReza)\
**Replies:** 2\
**Last updated:** [April 18, 2024, 3:03pm UTC](https://discourse.slicer.org/t/plus-remote-necessity/35600 "2024-04-18T15:03:40Z")

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Hello everyone, I am currently using 3D Slicer for freehand ultrasound via IGT. My process involves running Plus and activating my server through OpenIGTLinkIF, which allows me to reconstruct the volume using live recon…

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## [Binary image from segmentation](https://discourse.slicer.org/t/binary-image-from-segmentation/35601)

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**Author:** [@ahmad\_alminnawi](https://discourse.slicer.org/u/ahmad_alminnawi)\
**Replies:** 1\
**Last updated:** [April 18, 2024, 3:00pm UTC](https://discourse.slicer.org/t/binary-image-from-segmentation/35601 "2024-04-18T15:00:34Z")

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Hi all, I have a segmentation and I want to select some slices (planes) that I want to convert to 2D binary images (lets say the xy plane at z=0) for example. I found the question asked here where the advice was to Exp…

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## [DWModeling error execution in Python console](https://discourse.slicer.org/t/dwmodeling-error-execution-in-python-console/35602)

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**Author:** [@smati\_wissem](https://discourse.slicer.org/u/smati_wissem)\
**Replies:** 0\
**Last updated:** [April 18, 2024, 2:32pm UTC](https://discourse.slicer.org/t/dwmodeling-error-execution-in-python-console/35602 "2024-04-18T14:32:50Z")

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Hello everyone, I’ve created this code to execute DWModeling in the Python console, but it appears that I’m encountering an issue assigning parameters to the model. Could someone please help me? Thank you. def runDWMo…

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## [Set Up Slicer Virtual reality environment](https://discourse.slicer.org/t/set-up-slicer-virtual-reality-environment/4689)

<div class="topic-metadata">

**Author:** [@M\_pavi](https://discourse.slicer.org/u/M_pavi)\
**Replies:** 15\
**Last updated:** [April 18, 2024, 1:15pm UTC](https://discourse.slicer.org/t/set-up-slicer-virtual-reality-environment/4689 "2024-04-18T13:15:16Z")

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I already installed Slicer VR extension and connected HTC VIVE. This works both 4.9 and 4.10. Moreover, I want to do many changes set up VR boundaries like a room. Disable moving of the model and some advanced functiona…

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## [Error running radiomics extension](https://discourse.slicer.org/t/error-running-radiomics-extension/35525)

<div class="topic-metadata">

**Author:** [@conffite](https://discourse.slicer.org/u/conffite)\
**Replies:** 5\
**Last updated:** [April 18, 2024, 12:35pm UTC](https://discourse.slicer.org/t/error-running-radiomics-extension/35525 "2024-04-18T12:35:08Z")

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Hi，everyone- I recently installed the radiimics extension and have been encountering this error upon my program. This program was compiled by me, but I cannot use Radiomics. When I click on the function, it immediately…

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