# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=139

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

**Page:** 140

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## [Segmentation Editor: Painting raises VTK error: no input data](https://discourse.slicer.org/t/segmentation-editor-painting-raises-vtk-error-no-input-data/31793)

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**Author:** [@gortm](https://discourse.slicer.org/u/gortm)\
**Replies:** 8\
**Last updated:** [September 22, 2023, 10:55am UTC](https://discourse.slicer.org/t/segmentation-editor-painting-raises-vtk-error-no-input-data/31793 "2023-09-22T10:55:55Z")

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Dear community, First I’d like to mention that I’m new to slicer and probably I’m making a very obvious mistake. While trying to segment ct data captured on a Skyscan 1176, I ran into the issue that I could not use the…

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## [How to get manual and auto-segmentation outcomes in a single image using dash and solid lines?](https://discourse.slicer.org/t/how-to-get-manual-and-auto-segmentation-outcomes-in-a-single-image-using-dash-and-solid-lines/31828)

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**Author:** [@Js165](https://discourse.slicer.org/u/Js165)\
**Replies:** 2\
**Last updated:** [September 22, 2023, 3:38am UTC](https://discourse.slicer.org/t/how-to-get-manual-and-auto-segmentation-outcomes-in-a-single-image-using-dash-and-solid-lines/31828 "2023-09-22T03:38:53Z")

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Hello folks, I’m attempting to present both manual and auto-segmentation outcomes in a single image. I want manual segmentation edges to be represented as dashed lines, and auto segmentation edges to be represented as s…

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## [Failed to save a scene to external ExFAT usb volume on MacOS](https://discourse.slicer.org/t/failed-to-save-a-scene-to-external-exfat-usb-volume-on-macos/31835)

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**Author:** [@DennisEx81](https://discourse.slicer.org/u/DennisEx81)\
**Replies:** 3\
**Last updated:** [September 21, 2023, 8:55pm UTC](https://discourse.slicer.org/t/failed-to-save-a-scene-to-external-exfat-usb-volume-on-macos/31835 "2023-09-21T20:55:25Z")

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Hello, Version 5.4.0, I was not able to save a scene successfully to an external usb volume on MacOS (works on windows though). Error message below, vtkMRMLVolumeArchetypeStorageNode::WriteDataInternal: Error renaming …

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## [The software has a brief white screen when recovering from minimization](https://discourse.slicer.org/t/the-software-has-a-brief-white-screen-when-recovering-from-minimization/31820)

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**Author:** [@slicer365](https://discourse.slicer.org/u/slicer365)\
**Replies:** 3\
**Last updated:** [September 21, 2023, 8:31pm UTC](https://discourse.slicer.org/t/the-software-has-a-brief-white-screen-when-recovering-from-minimization/31820 "2023-09-21T20:31:58Z")

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When I open the histogram display, the program will show a white screen when it recovers from the minimized state. When I turned off the real-time update of the histogram in the source code, it didn’t work. …

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## [Change default location for screenshots](https://discourse.slicer.org/t/change-default-location-for-screenshots/31805)

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**Author:** [@mohammed\_alshakhas](https://discourse.slicer.org/u/mohammed_alshakhas)\
**Replies:** 2\
**Last updated:** [September 21, 2023, 8:18pm UTC](https://discourse.slicer.org/t/change-default-location-for-screenshots/31805 "2023-09-21T20:18:26Z")

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I wish it is possible to select the location of the screenshot instead of the default parent folder and change the default location for screenshots. at least if I change it, it stays as changed but unfortunately, I hav…

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## [Bone segmentation through MRI scan dicom images](https://discourse.slicer.org/t/bone-segmentation-through-mri-scan-dicom-images/31786)

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**Author:** [@Bibi\_Ayisha](https://discourse.slicer.org/u/Bibi_Ayisha)\
**Replies:** 2\
**Last updated:** [September 21, 2023, 1:17pm UTC](https://discourse.slicer.org/t/bone-segmentation-through-mri-scan-dicom-images/31786 "2023-09-21T13:17:13Z")

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I was provided a MRI scan of a patient. I have seen different series in the data and the data does not load completely. If I load all the files together it is not showing images properly. Is the issue related to dicom im…

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## [Activate/deactivate "show3d" in Segmentation Editor via command line](https://discourse.slicer.org/t/activate-deactivate-show3d-in-segmentation-editor-via-command-line/27584)

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**Author:** [@Nicolas\_Tempier](https://discourse.slicer.org/u/Nicolas_Tempier)\
**Replies:** 4\
**Last updated:** [September 21, 2023, 1:14pm UTC](https://discourse.slicer.org/t/activate-deactivate-show3d-in-segmentation-editor-via-command-line/27584 "2023-09-21T13:14:27Z")

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Hello ! I am trying to dispaly a segmentation in the 3D view using the python interactor but i cant find the command to activate/deactivate the equivalent of “show 3D” in segmentation Editor. for now i’ve tried : se…

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## [Reslice dicom data given computed axis](https://discourse.slicer.org/t/reslice-dicom-data-given-computed-axis/31806)

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**Author:** [@winnfr](https://discourse.slicer.org/u/winnfr)\
**Replies:** 2\
**Last updated:** [September 21, 2023, 1:01pm UTC](https://discourse.slicer.org/t/reslice-dicom-data-given-computed-axis/31806 "2023-09-21T13:01:24Z")

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Hello, I think this question has been asked many times but I can’t find a post answering it. Here’s my workflow: I use slicer to segment an organ from CT Scan then export the STL this STL is processed by a programm o…

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## [SlicerRt inverse proton treatment planning](https://discourse.slicer.org/t/slicerrt-inverse-proton-treatment-planning/28663)

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**Author:** [@ferhue](https://discourse.slicer.org/u/ferhue)\
**Replies:** 2\
**Last updated:** [September 21, 2023, 6:59am UTC](https://discourse.slicer.org/t/slicerrt-inverse-proton-treatment-planning/28663 "2023-09-21T06:59:43Z")

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SlicerRt supports forward proton treatment planning. It would be great if it also included inverse optimization - treatment planning. For example using this plugin Nymph which is free for research / academic purposes.

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## [HD-BET doesn't work for me](https://discourse.slicer.org/t/hd-bet-doesnt-work-for-me/31791)

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**Author:** [@MZA](https://discourse.slicer.org/u/MZA)\
**Replies:** 3\
**Last updated:** [September 20, 2023, 6:58pm UTC](https://discourse.slicer.org/t/hd-bet-doesnt-work-for-me/31791 "2023-09-20T18:58:31Z")

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Hi 3D Slicer team, I’m having a problem with using HD-BET to extract the brain from a T1WI with contrast .nrrd file. When I select the input and output files, and click ‘Apply (Image 1),’ it seems like it’s working in t…

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## [Slicer crashes when deleting segments from TotalSegmentator segmentation result](https://discourse.slicer.org/t/slicer-crashes-when-deleting-segments-from-totalsegmentator-segmentation-result/31773)

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**Author:** [@hepato](https://discourse.slicer.org/u/hepato)\
**Replies:** 3\
**Last updated:** [September 20, 2023, 5:10pm UTC](https://discourse.slicer.org/t/slicer-crashes-when-deleting-segments-from-totalsegmentator-segmentation-result/31773 "2023-09-20T17:10:17Z")

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When I use Total segmentator ,slicer breakdown when I delete some 3d data which I do not need ,just as screenshot pictures can anyone tell me how to resolve this problem? is there something wrong with my computer? har…

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## [Placing landmarks on meshs with geometric constructions](https://discourse.slicer.org/t/placing-landmarks-on-meshs-with-geometric-constructions/31789)

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**Author:** [@Saggittaman](https://discourse.slicer.org/u/Saggittaman)\
**Replies:** 6\
**Last updated:** [September 20, 2023, 2:48pm UTC](https://discourse.slicer.org/t/placing-landmarks-on-meshs-with-geometric-constructions/31789 "2023-09-20T14:48:18Z")

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Dear all, I’m working in 3D Slicer to place landmarks on 3D meshs. I would like to apply something like the figure 1. A of this paper in 3D, involving projection and landmark as a geometric construction. What is the be…

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## [How to get the convexHull of a segment](https://discourse.slicer.org/t/how-to-get-the-convexhull-of-a-segment/31541)

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**Author:** [@Matteboo](https://discourse.slicer.org/u/Matteboo)\
**Replies:** 2\
**Last updated:** [September 20, 2023, 1:52pm UTC](https://discourse.slicer.org/t/how-to-get-the-convexhull-of-a-segment/31541 "2023-09-20T13:52:24Z")

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Hello, I want to obtain the convex hull of a segment. (I don’t know how to upload an nrrd file but I can give it necessary) I saw this conversation but I can’t figure out what node I should get. I want to use this sni…

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## [Volume rendering gives solid box despite working XYZ views and adjusting preset/shift](https://discourse.slicer.org/t/volume-rendering-gives-solid-box-despite-working-xyz-views-and-adjusting-preset-shift/31775)

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**Author:** [@shika](https://discourse.slicer.org/u/shika)\
**Replies:** 4\
**Last updated:** [September 19, 2023, 9:44pm UTC](https://discourse.slicer.org/t/volume-rendering-gives-solid-box-despite-working-xyz-views-and-adjusting-preset-shift/31775 "2023-09-19T21:44:17Z")

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Hello there, I am a new user of Slicer but I have read through the wiki and other related help forums. I have been having issues with rendering from a stack of images, specifically using the SlicerMorph ImageStacks util…

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## [Slow to open DICOM data, particularly Checking Plugins](https://discourse.slicer.org/t/slow-to-open-dicom-data-particularly-checking-plugins/31715)

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**Author:** [@Markb](https://discourse.slicer.org/u/Markb)\
**Replies:** 11\
**Last updated:** [September 19, 2023, 8:53pm UTC](https://discourse.slicer.org/t/slow-to-open-dicom-data-particularly-checking-plugins/31715 "2023-09-19T20:53:07Z")

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Hi. I’m currently using Slicer 5.2.2 to do quite a lot data manipulation using python scripts, and I am not surprised that some of these tasks take a while. However, I am surprised how much slower 5.2.2 is at opening DIC…

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## [Python example that convert the multiple-label segmentation to binary-label segmentation](https://discourse.slicer.org/t/python-example-that-convert-the-multiple-label-segmentation-to-binary-label-segmentation/31765)

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**Author:** [@Liang\_Ma](https://discourse.slicer.org/u/Liang_Ma)\
**Replies:** 10\
**Last updated:** [September 19, 2023, 8:44pm UTC](https://discourse.slicer.org/t/python-example-that-convert-the-multiple-label-segmentation-to-binary-label-segmentation/31765 "2023-09-19T20:44:23Z")

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Hello all, I have a dataset from TCIA, which are multiple-label segmentation file (NOT nrrd but dcm file). the label map is something like this that I can read out by leveraging pydicom: {'Segment\_1': {'Label': 'Liver'…

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## [Update to Slicer Pipelines](https://discourse.slicer.org/t/update-to-slicer-pipelines/31797)

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**Author:** [@Harald\_Scheirich](https://discourse.slicer.org/u/Harald_Scheirich)\
**Replies:** 0\
**Last updated:** [September 19, 2023, 8:29pm UTC](https://discourse.slicer.org/t/update-to-slicer-pipelines/31797 "2023-09-19T20:29:11Z")

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SlicerPipelines are Slicer’s way to create workflows combining functionality from multiple modules together in one single module. The module created by SlicerPipelines can then be run by themselves or used for batch proc…

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## [Chest Imaging Platform is dead?](https://discourse.slicer.org/t/chest-imaging-platform-is-dead/31771)

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**Author:** [@volkodavmyx](https://discourse.slicer.org/u/volkodavmyx)\
**Replies:** 2\
**Last updated:** [September 18, 2023, 6:55pm UTC](https://discourse.slicer.org/t/chest-imaging-platform-is-dead/31771 "2023-09-18T18:55:35Z")

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Hi everyone! 5.2.2 is the last release on witch Chest Imaging Platform is available in Extension Manager. On 5.3.0 and 5.4.0 you can only install Lung segmenter as a part of CIP. There are no more updates for module p…

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## [Is there an extension in 3D Slicer for breast cancer?](https://discourse.slicer.org/t/is-there-an-extension-in-3d-slicer-for-breast-cancer/31761)

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**Author:** [@mhdabdellahi](https://discourse.slicer.org/u/mhdabdellahi)\
**Replies:** 4\
**Last updated:** [September 18, 2023, 1:33pm UTC](https://discourse.slicer.org/t/is-there-an-extension-in-3d-slicer-for-breast-cancer/31761 "2023-09-18T13:33:14Z")

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Hello everyone, I’m curious to know if there is an extension in 3D Slicer specifically designed for breast cancer analysis or related tasks. I would greatly appreciate any information or recommendations regarding this m…

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## [How does 3D Slicer overlay the RTDOSE and Image data in the correct position?](https://discourse.slicer.org/t/how-does-3d-slicer-overlay-the-rtdose-and-image-data-in-the-correct-position/8924)

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**Author:** [@Iman\_Shokatian](https://discourse.slicer.org/u/Iman_Shokatian)\
**Replies:** 22\
**Last updated:** [September 18, 2023, 12:54pm UTC](https://discourse.slicer.org/t/how-does-3d-slicer-overlay-the-rtdose-and-image-data-in-the-correct-position/8924 "2023-09-18T12:54:13Z")

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Hello, I’m currently an MS student in Medical Physics and I have a great need to be able to overlay an isodose distribution from an RTDOSE file onto a CT image from a .dcm file set. I’ve managed to extract the image an…

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## [Surface Cut and Fiducial Placement Issue](https://discourse.slicer.org/t/surface-cut-and-fiducial-placement-issue/9249)

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**Author:** [@Marjorie](https://discourse.slicer.org/u/Marjorie)\
**Replies:** 8\
**Last updated:** [November 21, 2019, 3:10pm UTC](https://discourse.slicer.org/t/surface-cut-and-fiducial-placement-issue/9249 "2019-11-21T15:10:30Z")

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Hello, My apologies if it was asked or discussed elsewhere: I went through the documentation but I did not see anything. I discovered the software very recently (i’m working with Slicer 4.10.2 on Mac Catalina), I have …

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## [SlicerTMS extension does not work in Slicer-5.4 on macOS](https://discourse.slicer.org/t/slicertms-extension-does-not-work-in-slicer-5-4-on-macos/31763)

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**Author:** [@lopezchau](https://discourse.slicer.org/u/lopezchau)\
**Replies:** 0\
**Last updated:** [September 17, 2023, 11:22pm UTC](https://discourse.slicer.org/t/slicertms-extension-does-not-work-in-slicer-5-4-on-macos/31763 "2023-09-17T23:22:25Z")

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Dear community and developers Does this solution applies to this neuronavigation and electric field simulator third party extension? I managed to make it work with version 5.2.2 but with 5.4 the module is recognized b…

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## [Can't select presets in Volume Rendering](https://discourse.slicer.org/t/cant-select-presets-in-volume-rendering/31746)

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**Author:** [@radiodid](https://discourse.slicer.org/u/radiodid)\
**Replies:** 7\
**Last updated:** [September 17, 2023, 7:15pm UTC](https://discourse.slicer.org/t/cant-select-presets-in-volume-rendering/31746 "2023-09-17T19:15:25Z")

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I want to create a 3D reconstruction for CBCT, but Slicer won’t let me choose a preset if I’ve already created segmentation. But if I run only the NRRD file without segmentations, everything works fine. What is the caus…

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## [Dicom RT dose export error: patient UID](https://discourse.slicer.org/t/dicom-rt-dose-export-error-patient-uid/31285)

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**Author:** [@jborsavage](https://discourse.slicer.org/u/jborsavage)\
**Replies:** 3\
**Last updated:** [September 17, 2023, 2:37pm UTC](https://discourse.slicer.org/t/dicom-rt-dose-export-error-patient-uid/31285 "2023-09-17T14:37:58Z")

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3D Slicer community, I am trying to convert 3ddose files generated in EGSnrc’s dosxyz to dicom RT dose volumes for analysis in Eclipse. However, I am unable to import the dcm files due to errors regarding the plan UID. …

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## [Attenuation percentage within a segment](https://discourse.slicer.org/t/attenuation-percentage-within-a-segment/31371)

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**Author:** [@Frederico\_Lisboa\_Nog](https://discourse.slicer.org/u/Frederico_Lisboa_Nog)\
**Replies:** 3\
**Last updated:** [September 16, 2023, 9:25pm UTC](https://discourse.slicer.org/t/attenuation-percentage-within-a-segment/31371 "2023-09-16T21:25:32Z")

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I am quite new at 3D Slicer. I have done some muscle segmentations (HU between -29 to 150) and I would like to further classify the percentage of the segmented area according to a range of attenuation. Example: 20% betw…

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## [Scalar Color Mapping has too many control points](https://discourse.slicer.org/t/scalar-color-mapping-has-too-many-control-points/31741)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 9\
**Last updated:** [September 16, 2023, 7:15pm UTC](https://discourse.slicer.org/t/scalar-color-mapping-has-too-many-control-points/31741 "2023-09-16T19:15:32Z")

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In the latest stable on Linux, when I enable volume rendering in one of my 16 bit scans (without using a preset), too many control points on the scalar color map is created. This makes it too tedious to reorganize color…

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## [SlicerDMRI extension in 3D Slicer 4.8.1](https://discourse.slicer.org/t/slicerdmri-extension-in-3d-slicer-4-8-1/31738)

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**Author:** [@Galiah](https://discourse.slicer.org/u/Galiah)\
**Replies:** 1\
**Last updated:** [September 16, 2023, 1:41pm UTC](https://discourse.slicer.org/t/slicerdmri-extension-in-3d-slicer-4-8-1/31738 "2023-09-16T13:41:17Z")

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Hi All, I am trying to access the Slicer DMRI extension in slicer 4.8.1 version, does this extension has different name but with same capability?? Thank you

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## [Extract Center of masses from binary LabelMapVolume and convert to Fiducials?](https://discourse.slicer.org/t/extract-center-of-masses-from-binary-labelmapvolume-and-convert-to-fiducials/3488)

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**Author:** [@shahrokh](https://discourse.slicer.org/u/shahrokh)\
**Replies:** 4\
**Last updated:** [September 16, 2023, 1:04pm UTC](https://discourse.slicer.org/t/extract-center-of-masses-from-binary-labelmapvolume-and-convert-to-fiducials/3488 "2023-09-16T13:04:25Z")

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Hi Slicer developers I have a binary labelMapVolume (512x512x173). It contains a large number of regions almost circular (approximately each area of about 20 pixels) at its axial sections. I have two questions: 1- Ho…

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## [5.4 VR testride](https://discourse.slicer.org/t/5-4-vr-testride/31252)

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**Author:** [@rbumm](https://discourse.slicer.org/u/rbumm)\
**Replies:** 6\
**Last updated:** [September 16, 2023, 6:53am UTC](https://discourse.slicer.org/t/5-4-vr-testride/31252 "2023-09-16T06:53:31Z")

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Short 5.4.0 VR testride (Windows 11, Quest 2, connected with USB Link cable) Installing the VR extension was without error. The model appears in free space after pressing the VR button - approximately 5 x the size of t…

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## [Standardizing Volume Measurement](https://discourse.slicer.org/t/standardizing-volume-measurement/31725)

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**Author:** [@JasmineFlake](https://discourse.slicer.org/u/JasmineFlake)\
**Replies:** 3\
**Last updated:** [September 15, 2023, 4:20pm UTC](https://discourse.slicer.org/t/standardizing-volume-measurement/31725 "2023-09-15T16:20:03Z")

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Hello, I am trying to calculate the volume of a lesion around a tooth. After I am able to identify the lesion using “grow seeds” function I go to segment statistics to calculate the volume. Even though my partner and I …

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