# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=208

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

**Page:** 209

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## [How to make derived widget and add into Widget Box in Qt Designer?](https://discourse.slicer.org/t/how-to-make-derived-widget-and-add-into-widget-box-in-qt-designer/24929)

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**Author:** [@sunshine](https://discourse.slicer.org/u/sunshine)\
**Replies:** 0\
**Last updated:** [August 25, 2022, 8:30pm UTC](https://discourse.slicer.org/t/how-to-make-derived-widget-and-add-into-widget-box-in-qt-designer/24929 "2022-08-25T20:30:08Z")

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Hi everyone, I am trying to set up two different fonts for a QPushButton, however, the existing one only support one font. I would like to make a RichPushButton derived from QPushButton to support different fonts, and …

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## [\[New user:\] Unable to combine several MRI DICOM series into one volume](https://discourse.slicer.org/t/new-user-unable-to-combine-several-mri-dicom-series-into-one-volume/24928)

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**Author:** [@chris42](https://discourse.slicer.org/u/chris42)\
**Replies:** 0\
**Last updated:** [August 25, 2022, 8:29pm UTC](https://discourse.slicer.org/t/new-user-unable-to-combine-several-mri-dicom-series-into-one-volume/24928 "2022-08-25T20:29:57Z")

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Hi, I am new to slicer. I have a MRI scan of the shoulder broken down into several DICOM series with several images, each. I would like to build one volume from these series. Using the DICOM importer, I manage to impor…

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## [window display problem](https://discourse.slicer.org/t/window-display-problem/24927)

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**Author:** [@yang](https://discourse.slicer.org/u/yang)\
**Replies:** 0\
**Last updated:** [August 25, 2022, 8:29pm UTC](https://discourse.slicer.org/t/window-display-problem/24927 "2022-08-25T20:29:53Z")

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Operating system: win10 Slicer version: 4.11 Expected behavior: I opened the main window of the slicer in full screen, but when I clicked the button, the pop-up dialog was displayed behind the main window. I thought i…

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## [How to do online (real-time) annotation when recording a new sequence of ultrasound stream using the module "Sequences"?](https://discourse.slicer.org/t/how-to-do-online-real-time-annotation-when-recording-a-new-sequence-of-ultrasound-stream-using-the-module-sequences/24923)

<div class="topic-metadata">

**Author:** [@sunshine](https://discourse.slicer.org/u/sunshine)\
**Replies:** 0\
**Last updated:** [August 25, 2022, 7:24pm UTC](https://discourse.slicer.org/t/how-to-do-online-real-time-annotation-when-recording-a-new-sequence-of-ultrasound-stream-using-the-module-sequences/24923 "2022-08-25T19:24:33Z")

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Hi everyone, This topic is to continue a question from I am trying to design my first extension module, similar to the module “Sequences” but with real-time frame annotations from AI image processing for live ultrasou…

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## [How to dynamically update the StringName of ParameterNode?](https://discourse.slicer.org/t/how-to-dynamically-update-the-stringname-of-parameternode/24895)

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**Author:** [@sunshine](https://discourse.slicer.org/u/sunshine)\
**Replies:** 3\
**Last updated:** [August 25, 2022, 7:28pm UTC](https://discourse.slicer.org/t/how-to-dynamically-update-the-stringname-of-parameternode/24895 "2022-08-25T19:28:02Z")

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Hi everyone, I am trying to design my first extension module, similar to the module “Sequences” but with real-time frame annotations from AI image processing for live ultrasound sequence collection. My first question i…

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## [Best & easiest web service to run 3d slicer.](https://discourse.slicer.org/t/best-easiest-web-service-to-run-3d-slicer/24649)

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**Author:** [@MZA](https://discourse.slicer.org/u/MZA)\
**Replies:** 3\
**Last updated:** [August 25, 2022, 7:17pm UTC](https://discourse.slicer.org/t/best-easiest-web-service-to-run-3d-slicer/24649 "2022-08-25T19:17:33Z")

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Hi everyone, What is the easiest appstream or cloud web service I can use to run 3d slicer 5.0.3 for segmentation (files with extension .seg.nrrd & .nii). My laptop cannot run versions beyond 4.8.1 and the segmentation …

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## [Amygdala Parametrization Issue](https://discourse.slicer.org/t/amygdala-parametrization-issue/24287)

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**Author:** [@Khalid\_Saifullah](https://discourse.slicer.org/u/Khalid_Saifullah)\
**Replies:** 5\
**Last updated:** [August 25, 2022, 6:05pm UTC](https://discourse.slicer.org/t/amygdala-parametrization-issue/24287 "2022-08-25T18:05:40Z")

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Hi, I am generating the spharm-pdm output of amygdala shapes for my shape analysis. Previously, I did it for hippocampus on around 400 subjects. Thank you @styner for your support throughout. For generating the sph…

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## [Saving RTSTRUCT Nodes as Nifti Files](https://discourse.slicer.org/t/saving-rtstruct-nodes-as-nifti-files/24843)

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**Author:** [@enamdar](https://discourse.slicer.org/u/enamdar)\
**Replies:** 1\
**Last updated:** [August 24, 2022, 8:52pm UTC](https://discourse.slicer.org/t/saving-rtstruct-nodes-as-nifti-files/24843 "2022-08-24T20:52:48Z")

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Hi everyone. I have loaded a patient volume, its segmentation, and the corresponding RTSTURCT. I need to save the components of the RTSTRUCT as separate nifti files using the python command line, but I have no idea how…

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## [Loading a .bmp sequence from directory as a LabelMap](https://discourse.slicer.org/t/loading-a-bmp-sequence-from-directory-as-a-labelmap/24802)

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**Author:** [@Windy](https://discourse.slicer.org/u/Windy)\
**Replies:** 8\
**Last updated:** [August 24, 2022, 2:53pm UTC](https://discourse.slicer.org/t/loading-a-bmp-sequence-from-directory-as-a-labelmap/24802 "2022-08-24T14:53:34Z")

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Operating system: Windows 10 Education Slicer version: 5.0.2 Expected behavior: I have a set of segmented slices in a directory. It has 2 classes (0 and 255). The image format is .bmp. I want to load them as a segment…

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## [Switching between different volume display](https://discourse.slicer.org/t/switching-between-different-volume-display/24860)

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**Author:** [@AMK](https://discourse.slicer.org/u/AMK)\
**Replies:** 2\
**Last updated:** [August 24, 2022, 12:32pm UTC](https://discourse.slicer.org/t/switching-between-different-volume-display/24860 "2022-08-24T12:32:06Z")

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Hi, I have imported a Dicom file containing various volumes of pelvic and ankle of different slice thicknesses. The view window always shows the last volume imported. I can switch between different volumes by going to t…

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## [Why the MultiVolumExplorer is not running smoothly in 5.0.2 and 5.0.3?](https://discourse.slicer.org/t/why-the-multivolumexplorer-is-not-running-smoothly-in-5-0-2-and-5-0-3/24905)

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**Author:** [@researchtomliu](https://discourse.slicer.org/u/researchtomliu)\
**Replies:** 0\
**Last updated:** [August 24, 2022, 9:53am UTC](https://discourse.slicer.org/t/why-the-multivolumexplorer-is-not-running-smoothly-in-5-0-2-and-5-0-3/24905 "2022-08-24T09:53:33Z")

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Dear Friends, When I analyze the PWI images in the module of MultiVolumExplorer, I find out the plotting of PWI is too choppy when I move my mouse on the PWI images. The corresponding speed of the plotting is very delay…

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## [Unchanged Markup Position and Sequences](https://discourse.slicer.org/t/unchanged-markup-position-and-sequences/24869)

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**Author:** [@ChristophG123](https://discourse.slicer.org/u/ChristophG123)\
**Replies:** 6\
**Last updated:** [August 24, 2022, 5:26am UTC](https://discourse.slicer.org/t/unchanged-markup-position-and-sequences/24869 "2022-08-24T05:26:15Z")

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Slicer Version: 5.1.0-2022-07-17 OS: Windows 10 Hi, I made a sequence where I tracked 1 transformed markup list at 22 different positions (as 22 sequences). However, when I try copy and pasting each of the unique mark…

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## [Draw persistent line](https://discourse.slicer.org/t/draw-persistent-line/24899)

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**Author:** [@shomal](https://discourse.slicer.org/u/shomal)\
**Replies:** 0\
**Last updated:** [August 24, 2022, 3:26am UTC](https://discourse.slicer.org/t/draw-persistent-line/24899 "2022-08-24T03:26:04Z")

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Hello. I need to draw a line, which stay persistence when I scroll down and up to different sections. The segment editor allow me to do that but when I want to add measurements with markups the line will be disappeared. …

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## [Fix Image Resolutions and number of slices of CT images to fit with pet image](https://discourse.slicer.org/t/fix-image-resolutions-and-number-of-slices-of-ct-images-to-fit-with-pet-image/24772)

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**Author:** [@morgenmuesli](https://discourse.slicer.org/u/morgenmuesli)\
**Replies:** 1\
**Last updated:** [August 23, 2022, 6:42pm UTC](https://discourse.slicer.org/t/fix-image-resolutions-and-number-of-slices-of-ct-images-to-fit-with-pet-image/24772 "2022-08-23T18:42:01Z")

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Hello, I am a total beginner with 3d Slicer so please excuse me and feel free to direct me to the appropriate page if the question is trivial. I’ve got a Dataset of labeled PET/CT Volumes, where there are Full Body PET …

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## [Why are the dicom files disordered after I added them into the DICOM database?](https://discourse.slicer.org/t/why-are-the-dicom-files-disordered-after-i-added-them-into-the-dicom-database/24891)

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**Author:** [@Dawn\_GreyHouse](https://discourse.slicer.org/u/Dawn_GreyHouse)\
**Replies:** 1\
**Last updated:** [August 23, 2022, 5:51pm UTC](https://discourse.slicer.org/t/why-are-the-dicom-files-disordered-after-i-added-them-into-the-dicom-database/24891 "2022-08-23T17:51:00Z")

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I have converted 1000+ consecutive CT scanning TIFF files into DICOM files in the right order, but when I add the folder with all the converted files, 3D slicer made them into the wrong order. I checked the converted fil…

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## [the draw function on segmentation editor doesn't work while the paint function works](https://discourse.slicer.org/t/the-draw-function-on-segmentation-editor-doesnt-work-while-the-paint-function-works/24890)

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**Author:** [@Danny\_Jang](https://discourse.slicer.org/u/Danny_Jang)\
**Replies:** 0\
**Last updated:** [August 23, 2022, 5:11pm UTC](https://discourse.slicer.org/t/the-draw-function-on-segmentation-editor-doesnt-work-while-the-paint-function-works/24890 "2022-08-23T17:11:22Z")

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Hello, I’ve noticed that the draw function of the segment editor doesn’t work on some axial CT images, while the paint function works fine. Interestingly, the draw function works on the sagittal plane, but I’d like to …

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## [Change the size of interaction handles programmatically](https://discourse.slicer.org/t/change-the-size-of-interaction-handles-programmatically/24889)

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**Author:** [@seanchoi0519](https://discourse.slicer.org/u/seanchoi0519)\
**Replies:** 2\
**Last updated:** [August 23, 2022, 5:10pm UTC](https://discourse.slicer.org/t/change-the-size-of-interaction-handles-programmatically/24889 "2022-08-23T17:10:20Z")

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Hello, would there be a way to reduce the size of these interaction handles via python programmatically? Thanks a lot

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## [GE VScan Extend 3D reconstruction](https://discourse.slicer.org/t/ge-vscan-extend-3d-reconstruction/24884)

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**Author:** [@paperhuman465](https://discourse.slicer.org/u/paperhuman465)\
**Replies:** 0\
**Last updated:** [August 23, 2022, 11:06am UTC](https://discourse.slicer.org/t/ge-vscan-extend-3d-reconstruction/24884 "2022-08-23T11:06:44Z")

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Hi, I am a Masters Student trying to use a GE Vscan Extend Ultrasound to perform a 3D reconstruction in real-time for my project. However, I don’t think 3DslicerIGT is compatible with GE. Then I saw a forum where you can…

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## [Math behind vtkPrincipalAxesAlign and ACPCTransform ](https://discourse.slicer.org/t/math-behind-vtkprincipalaxesalign-and-acpctransform/24867)

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**Author:** [@Brandon\_Z](https://discourse.slicer.org/u/Brandon_Z)\
**Replies:** 1\
**Last updated:** [August 22, 2022, 10:39pm UTC](https://discourse.slicer.org/t/math-behind-vtkprincipalaxesalign-and-acpctransform/24867 "2022-08-22T22:39:04Z")

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Hello all, I am not sure this is the right place to ask this question, but I’m wondering about the math behind the PCA implementation in “vtkPrincipalAxesAlign” as well as some other steps in the ACPCTransform module. I…

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## [Very new, Can't seem to load a 4D CT scanning sequence in DICOM format](https://discourse.slicer.org/t/very-new-cant-seem-to-load-a-4d-ct-scanning-sequence-in-dicom-format/24866)

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**Author:** [@MrTomatosoup](https://discourse.slicer.org/u/MrTomatosoup)\
**Replies:** 3\
**Last updated:** [August 22, 2022, 7:50pm UTC](https://discourse.slicer.org/t/very-new-cant-seem-to-load-a-4d-ct-scanning-sequence-in-dicom-format/24866 "2022-08-22T19:50:42Z")

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Hi all, as said in the title, I am very new to Slicer and its applications. I want to analyze a series of 4-dimensional CT-scans (xyzt). I have the files in DICOM format. It seems I have the same problem as posted in th…

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## [Restore overwritten segmentation](https://discourse.slicer.org/t/restore-overwritten-segmentation/24870)

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**Author:** [@kopachini](https://discourse.slicer.org/u/kopachini)\
**Replies:** 1\
**Last updated:** [August 22, 2022, 5:38pm UTC](https://discourse.slicer.org/t/restore-overwritten-segmentation/24870 "2022-08-22T17:38:46Z")

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Hello everyone, I desperately need your help. I have segmentation with needed anatomical structures… Today, by accident I have added one more structure (skin) but unfortunately, I have lost other organs and didn’t reali…

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## [Error using the closing function of the segment editor in semi-automated segmentation using python](https://discourse.slicer.org/t/error-using-the-closing-function-of-the-segment-editor-in-semi-automated-segmentation-using-python/24773)

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**Author:** [@FOosterbaan](https://discourse.slicer.org/u/FOosterbaan)\
**Replies:** 3\
**Last updated:** [August 22, 2022, 8:49am UTC](https://discourse.slicer.org/t/error-using-the-closing-function-of-the-segment-editor-in-semi-automated-segmentation-using-python/24773 "2022-08-22T08:49:27Z")

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Hi all! I’m fairly new to using slicer so I might have made a mistake somewhere but I keep getting an error while running my script and I can not figure out why. I have written a script to automate part of the segmentat…

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## [How to create two segmentations that are the exact same size?](https://discourse.slicer.org/t/how-to-create-two-segmentations-that-are-the-exact-same-size/24750)

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**Author:** [@MatthewVanOirschot](https://discourse.slicer.org/u/MatthewVanOirschot)\
**Replies:** 2\
**Last updated:** [August 22, 2022, 7:57am UTC](https://discourse.slicer.org/t/how-to-create-two-segmentations-that-are-the-exact-same-size/24750 "2022-08-22T07:57:30Z")

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Operating system: Windows 10 Slicer version: 4.11.20210226 Expected behavior: I am working on a radiomics project that utilizes a sphere-shaped region as the input region. The goal of the study is to determine whether…

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## [What are the units of distance between any two points?](https://discourse.slicer.org/t/what-are-the-units-of-distance-between-any-two-points/24853)

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**Author:** [@jsalas424](https://discourse.slicer.org/u/jsalas424)\
**Replies:** 1\
**Last updated:** [August 21, 2022, 8:52pm UTC](https://discourse.slicer.org/t/what-are-the-units-of-distance-between-any-two-points/24853 "2022-08-21T20:52:12Z")

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Clarifying question: If I calculate the euclidean distance between any two x,y,z point using data exported from a slicer mesh, what are the units?

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## [How to export Segmentation as gtlf using python code](https://discourse.slicer.org/t/how-to-export-segmentation-as-gtlf-using-python-code/24852)

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**Author:** [@Sirius\_Chen](https://discourse.slicer.org/u/Sirius_Chen)\
**Replies:** 0\
**Last updated:** [August 21, 2022, 3:20pm UTC](https://discourse.slicer.org/t/how-to-export-segmentation-as-gtlf-using-python-code/24852 "2022-08-21T15:20:28Z")

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Greetings! I need to export Segmentation as ONE gtlf file. I noticed I can use SlicerOpenAnatomy, but using the python code—— exporter = vtk.vtkGLTFExporter() exporter.SetRenderWindow(slicer.app.layoutManager().threeDW…

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## [How to display a line with interaction handles by python?](https://discourse.slicer.org/t/how-to-display-a-line-with-interaction-handles-by-python/19282)

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**Author:** [@jumbojing](https://discourse.slicer.org/u/jumbojing)\
**Replies:** 13\
**Last updated:** [August 21, 2022, 2:58pm UTC](https://discourse.slicer.org/t/how-to-display-a-line-with-interaction-handles-by-python/19282 "2022-08-21T14:58:49Z")

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How to display a line (vtkMRMLMarkupsLineNode) with interaction handles by python? @lassoan@Juicy@jamesobutler @jcfr @pieper like that:

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## [Printing volume renderings in plastic](https://discourse.slicer.org/t/printing-volume-renderings-in-plastic/3017)

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**Author:** [@pieper](https://discourse.slicer.org/u/pieper)\
**Replies:** 16\
**Last updated:** [August 19, 2022, 3:40pm UTC](https://discourse.slicer.org/t/printing-volume-renderings-in-plastic/3017 "2022-08-19T15:40:32Z")

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A question that comes up on this forum from time to time is why we can’t just 3D print the volume rendered view. We explain that most printers today expect STL surface models and we go into the difference between volume…

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## [CommonTK Documentation](https://discourse.slicer.org/t/commontk-documentation/24780)

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**Author:** [@tossin](https://discourse.slicer.org/u/tossin)\
**Replies:** 1\
**Last updated:** [August 19, 2022, 3:31pm UTC](https://discourse.slicer.org/t/commontk-documentation/24780 "2022-08-19T15:31:45Z")

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Hello all, I’ve started playing around with writing Scriptable Extensions in Slicer. I wanted to try some CommonTK widgets, but I had trouble finding documentation. The Image Gallery on the Common TK website is helpfu…

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## [Error loading mrml working file](https://discourse.slicer.org/t/error-loading-mrml-working-file/24830)

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**Author:** [@Ti\_n\_D\_t\_Ha](https://discourse.slicer.org/u/Ti_n_D_t_Ha)\
**Replies:** 0\
**Last updated:** [August 19, 2022, 9:11am UTC](https://discourse.slicer.org/t/error-loading-mrml-working-file/24830 "2022-08-19T09:11:32Z")

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I can’t load the mrml Scene file. Slicer said I have to increase Virtual Memory in Window 10 Settings, so I did it. But I still can’t load the mrml, now Slicer change the notification to this My laptop have 16GB …

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## [I want to measure the length and width of a vertebra?](https://discourse.slicer.org/t/i-want-to-measure-the-length-and-width-of-a-vertebra/24829)

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**Author:** [@sandigeeup](https://discourse.slicer.org/u/sandigeeup)\
**Replies:** 0\
**Last updated:** [August 19, 2022, 8:04am UTC](https://discourse.slicer.org/t/i-want-to-measure-the-length-and-width-of-a-vertebra/24829 "2022-08-19T08:04:40Z")

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Hi, I have an ongoing project and am at the stage I need to measure the height (of the midpoint of the vertebral body) of L2 and L5, and length (in CT scans)? I have approx. 20 data sets to complete. I have used the segm…

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