# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=255

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

**Page:** 256

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## [Image orientation issue](https://discourse.slicer.org/t/image-orientation-issue/20139)

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**Author:** [@Vinny](https://discourse.slicer.org/u/Vinny)\
**Replies:** 3\
**Last updated:** [October 14, 2021, 5:22am UTC](https://discourse.slicer.org/t/image-orientation-issue/20139 "2021-10-14T05:22:24Z")

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Hello, I recently started using Slicer 4.13-2021-10-10 and noticed that some images are loading in a near ac-pc alignment even though they were not acquired in that way, and no ac-pc transformation has been applied. I’…

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## [import large files .nii](https://discourse.slicer.org/t/import-large-files-nii/20138)

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**Author:** [@Ilias\_Paraskevas](https://discourse.slicer.org/u/Ilias_Paraskevas)\
**Replies:** 1\
**Last updated:** [October 13, 2021, 6:54pm UTC](https://discourse.slicer.org/t/import-large-files-nii/20138 "2021-10-13T18:54:56Z")

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I have a 31GB .nii file. When I’m tring to import it shows me this message: Error occurred while loading the selected files. Is there any way I can open it? Thanks, Ilias

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## [Volume rendering does not work after reloading scene](https://discourse.slicer.org/t/volume-rendering-does-not-work-after-reloading-scene/20136)

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**Author:** [@stephan13](https://discourse.slicer.org/u/stephan13)\
**Replies:** 1\
**Last updated:** [October 13, 2021, 6:31pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-work-after-reloading-scene/20136 "2021-10-13T18:31:00Z")

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Problem report for Slicer 4.11.20210226 win-amd64: Hi there I cropped a volume and saved everything into a scene. After reloading the scene, I can only see the 3D rendering of the cropped volume. The rendered original…

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## [Slicer on Windows 11](https://discourse.slicer.org/t/slicer-on-windows-11/20085)

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**Author:** [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Replies:** 18\
**Last updated:** [October 13, 2021, 1:23pm UTC](https://discourse.slicer.org/t/slicer-on-windows-11/20085 "2021-10-13T13:23:51Z")

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Now that Windows 11 has been publicly released, I have started to test out Slicer’s compatibility on the new version of the OS. The latest Slicer stable 4.11.20210226 currently starts without issue on Windows 11, howeve…

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## [Determination of the tumor's move by time](https://discourse.slicer.org/t/determination-of-the-tumors-move-by-time/20113)

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**Author:** [@ylcnkzy](https://discourse.slicer.org/u/ylcnkzy)\
**Replies:** 4\
**Last updated:** [October 13, 2021, 12:31pm UTC](https://discourse.slicer.org/t/determination-of-the-tumors-move-by-time/20113 "2021-10-13T12:31:16Z")

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Dear All, I am working with CT data that have been acquired from the same patients at different time points. My aim is to evaluate the tumor shrinkage (I have established it well in the 3D slicer, and works well) and tu…

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## [Slicer crashes when trying to run segment editor threshold](https://discourse.slicer.org/t/slicer-crashes-when-trying-to-run-segment-editor-threshold/20109)

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**Author:** [@Saima](https://discourse.slicer.org/u/Saima)\
**Replies:** 4\
**Last updated:** [October 13, 2021, 12:17pm UTC](https://discourse.slicer.org/t/slicer-crashes-when-trying-to-run-segment-editor-threshold/20109 "2021-10-13T12:17:51Z")

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Hi, Any support in this Switch to module: “SegmentEditor” QLayout::addChildLayout: layout “” already has a parent ctkSliderWidget::setSingleStep() 0 is out of bounds. 0 10 1 error: \[/home/saima/Downloads/Downloads…

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## [Compare two dicom image before and after injection](https://discourse.slicer.org/t/compare-two-dicom-image-before-and-after-injection/13186)

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**Author:** [@Zahed\_Tavangari](https://discourse.slicer.org/u/Zahed_Tavangari)\
**Replies:** 2\
**Last updated:** [October 13, 2021, 10:52am UTC](https://discourse.slicer.org/t/compare-two-dicom-image-before-and-after-injection/13186 "2021-10-13T10:52:43Z")

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Hello, i have two dicom image(before and after contrast agent) i just want to contour the contrast agent by comparing this two images. how to do that? yours, zahed

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## [How to find and install AnomalousFilters in 3D Slicer 4.13.0?](https://discourse.slicer.org/t/how-to-find-and-install-anomalousfilters-in-3d-slicer-4-13-0/20124)

<div class="topic-metadata">

**Author:** [@kai.cheng.ias](https://discourse.slicer.org/u/kai.cheng.ias)\
**Replies:** 1\
**Last updated:** [October 13, 2021, 3:28am UTC](https://discourse.slicer.org/t/how-to-find-and-install-anomalousfilters-in-3d-slicer-4-13-0/20124 "2021-10-13T03:28:33Z")

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Hello, How to find and install AnomalousFilters in 3D Slicer 4.13.0? I couldn’t find it in the Extensions Manager. Thank you. Kai

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## [Reformat keyboard shorcuts?](https://discourse.slicer.org/t/reformat-keyboard-shorcuts/20089)

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**Author:** [@sronen71](https://discourse.slicer.org/u/sronen71)\
**Replies:** 5\
**Last updated:** [October 13, 2021, 2:57am UTC](https://discourse.slicer.org/t/reformat-keyboard-shorcuts/20089 "2021-10-13T02:57:52Z")

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Hi, I know we can obtain oblique views via the reformat widget in a slice view. Clicking the reformat widget tool shows an arrow on the 3D view that can be dragged by mouse. Are there keyboard shortcuts for this proce…

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## [Starting Slicer in Ubuntu 20.04](https://discourse.slicer.org/t/starting-slicer-in-ubuntu-20-04/20078)

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**Author:** [@ogdenk](https://discourse.slicer.org/u/ogdenk)\
**Replies:** 6\
**Last updated:** [October 12, 2021, 5:12pm UTC](https://discourse.slicer.org/t/starting-slicer-in-ubuntu-20-04/20078 "2021-10-12T17:12:49Z")

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Hi Everyone, I am starting to use 3D Slicer in Linux. Overall it seems to be working great, but I have an issue with associating the application with the .mrml file format. I am not a long time Linux user, and I can’t…

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## [Starting Error in Windows computer showing Insufficient Graphics capability](https://discourse.slicer.org/t/starting-error-in-windows-computer-showing-insufficient-graphics-capability/9569)

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**Author:** [@muntahi398](https://discourse.slicer.org/u/muntahi398)\
**Replies:** 11\
**Last updated:** [October 12, 2021, 1:52am UTC](https://discourse.slicer.org/t/starting-error-in-windows-computer-showing-insufficient-graphics-capability/9569 "2021-10-12T01:52:09Z")

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Operating system: WIndows 10 Slicer version: 4.11 Expected behavior: Starting normally, as RTX2080 card is there Actual behavior: Shows error in starting saying Graphics capabilities of this computer: Renderer does n…

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## [Extracting Slices from a 3D MRI volume using Reformat Module](https://discourse.slicer.org/t/extracting-slices-from-a-3d-mri-volume-using-reformat-module/5843)

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**Author:** [@nish91](https://discourse.slicer.org/u/nish91)\
**Replies:** 9\
**Last updated:** [October 11, 2021, 11:12pm UTC](https://discourse.slicer.org/t/extracting-slices-from-a-3d-mri-volume-using-reformat-module/5843 "2021-10-11T23:12:50Z")

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I used reformat module to fix an arbitrary plane using a normal vector and then visualized the slices by moving the plane on that normal. However, I am not able to extract all the slices from the defined plane and Reform…

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## [3D Slicer not responding on cuts with scissor tool and quantification](https://discourse.slicer.org/t/3d-slicer-not-responding-on-cuts-with-scissor-tool-and-quantification/20096)

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**Author:** [@ErikW](https://discourse.slicer.org/u/ErikW)\
**Replies:** 3\
**Last updated:** [October 11, 2021, 7:55pm UTC](https://discourse.slicer.org/t/3d-slicer-not-responding-on-cuts-with-scissor-tool-and-quantification/20096 "2021-10-11T19:55:37Z")

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Hello, new user here. As the title states, the program becomes unresponsive when these features are used. Hardware is not the issue as I have a rather capable computer

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## [Create a Volumen from axial,sagital and coronal series](https://discourse.slicer.org/t/create-a-volumen-from-axial-sagital-and-coronal-series/20093)

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**Author:** [@MAURICIO\_ALBERTO\_LED](https://discourse.slicer.org/u/MAURICIO_ALBERTO_LED)\
**Replies:** 2\
**Last updated:** [October 11, 2021, 5:41pm UTC](https://discourse.slicer.org/t/create-a-volumen-from-axial-sagital-and-coronal-series/20093 "2021-10-11T17:41:25Z")

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Operating system: Linux Ubuntu Slicer version: 4.11.20210226 Hello my name is Mauricio and i am currently working on determining the trajectory of bullets in head wounds. I have a problem and is that when the radiolog…

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## [Merge CT and RT Dose File](https://discourse.slicer.org/t/merge-ct-and-rt-dose-file/20098)

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**Author:** [@Cody\_Xie](https://discourse.slicer.org/u/Cody_Xie)\
**Replies:** 2\
**Last updated:** [October 11, 2021, 2:04pm UTC](https://discourse.slicer.org/t/merge-ct-and-rt-dose-file/20098 "2021-10-11T14:04:12Z")

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Hi to all, I have three files: a CT data set, a RS structures file and a RT Dose file. After importing these three data into Slicer, I found that the CT and Dose data cannot be visualized at the same time (see the pictu…

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## [New module to customize lighting in 3D view](https://discourse.slicer.org/t/new-module-to-customize-lighting-in-3d-view/8804)

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**Author:** [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Replies:** 22\
**Last updated:** [October 11, 2021, 11:58am UTC](https://discourse.slicer.org/t/new-module-to-customize-lighting-in-3d-view/8804 "2021-10-11T11:58:04Z")

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A new experimental module, “Lights”, was added to “Sandbox” extension that allows you to change lightkit parameters with a simple GUI. See a short demo video here: If we get the feedback that this module is useful then…

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## [Erosion model, when contacted with another model](https://discourse.slicer.org/t/erosion-model-when-contacted-with-another-model/20067)

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**Author:** [@xianger-qi](https://discourse.slicer.org/u/xianger-qi)\
**Replies:** 8\
**Last updated:** [October 9, 2021, 2:51pm UTC](https://discourse.slicer.org/t/erosion-model-when-contacted-with-another-model/20067 "2021-10-09T14:51:51Z")

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In the scene, there are a probe model, and femur model . I control the probe to grind femur, I want to erode the femur gradually when the probe model contact the femur model. The effect just like below. how can i implem…

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## [Is there a way to export lines, angles, and planes as an STL? Or other 3d object file type?](https://discourse.slicer.org/t/is-there-a-way-to-export-lines-angles-and-planes-as-an-stl-or-other-3d-object-file-type/20073)

<div class="topic-metadata">

**Author:** [@alexjamesmajor](https://discourse.slicer.org/u/alexjamesmajor)\
**Replies:** 2\
**Last updated:** [October 10, 2021, 2:43pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-export-lines-angles-and-planes-as-an-stl-or-other-3d-object-file-type/20073 "2021-10-10T14:43:21Z")

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I see that segmentations can be exported as STL, but this would not be as clean as having lines and planes. My colleague is hoping to take this information and load it into Solidworks to design a part. Any tips would be …

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## [Make vtkMRMLMarkupsFiducialNode unselectable](https://discourse.slicer.org/t/make-vtkmrmlmarkupsfiducialnode-unselectable/20081)

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**Author:** [@xianger-qi](https://discourse.slicer.org/u/xianger-qi)\
**Replies:** 3\
**Last updated:** [October 10, 2021, 2:02pm UTC](https://discourse.slicer.org/t/make-vtkmrmlmarkupsfiducialnode-unselectable/20081 "2021-10-10T14:02:51Z")

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Default, the vtkMRMLMarkupsFiducailNode can be selected by left mouse press, But In my application, i want vtkMRMLMarkupsFiducailNode can’t be selected by mouse press, how can i implement it? Thanks for your help!

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## [How to group fiducial markups?](https://discourse.slicer.org/t/how-to-group-fiducial-markups/19890)

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**Author:** [@Kruthi](https://discourse.slicer.org/u/Kruthi)\
**Replies:** 22\
**Last updated:** [October 10, 2021, 4:48am UTC](https://discourse.slicer.org/t/how-to-group-fiducial-markups/19890 "2021-10-10T04:48:27Z")

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Hello, I am having issues grouping the individual folders of fiducial markups into a single folder so I can edit them at the parent level to reflect the changes made to all of it. From the picture attached, t how do …

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## [what thing do I miss to create volume sequence from tiff](https://discourse.slicer.org/t/what-thing-do-i-miss-to-create-volume-sequence-from-tiff/20039)

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**Author:** [@BingYen](https://discourse.slicer.org/u/BingYen)\
**Replies:** 5\
**Last updated:** [October 9, 2021, 7:49pm UTC](https://discourse.slicer.org/t/what-thing-do-i-miss-to-create-volume-sequence-from-tiff/20039 "2021-10-09T19:49:26Z")

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Hi, I’m new to Slicer and Python I want to load 512x512x619x9 uint16 data from microscopy into Slicer as volume sequence data. First, I save ome.tiff as nrrd (C2withmeta.nrrd) via Fiji after I checked the properties. …

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## [Some regions of loaded CT data are not showing in 3d slicer](https://discourse.slicer.org/t/some-regions-of-loaded-ct-data-are-not-showing-in-3d-slicer/20084)

<div class="topic-metadata">

**Author:** [@Sliceeeeee](https://discourse.slicer.org/u/Sliceeeeee)\
**Replies:** 1\
**Last updated:** [October 9, 2021, 7:44pm UTC](https://discourse.slicer.org/t/some-regions-of-loaded-ct-data-are-not-showing-in-3d-slicer/20084 "2021-10-09T19:44:34Z")

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When I am loading the data into 3d slicer some of its regions are not showing , but somehow when I am changing the master volume that regions are showing but I am not able to paint(Or edit them ) . Please help me in this …

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## [Blood Flow Simulation from cardiac Cine-MRi](https://discourse.slicer.org/t/blood-flow-simulation-from-cardiac-cine-mri/20036)

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**Author:** [@xiaolin](https://discourse.slicer.org/u/xiaolin)\
**Replies:** 5\
**Last updated:** [October 8, 2021, 3:33pm UTC](https://discourse.slicer.org/t/blood-flow-simulation-from-cardiac-cine-mri/20036 "2021-10-08T15:33:27Z")

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Hi everyone, I’m a medical student and working on cardiac Cine-MRI. I’m gonna use the cardiac Cine-MRI to perform blood flow simulation and analysis, as well as the cardiac function. Does anyone know how to realize this …

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## [Label image defects after saving](https://discourse.slicer.org/t/label-image-defects-after-saving/20062)

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**Author:** [@MachadoL](https://discourse.slicer.org/u/MachadoL)\
**Replies:** 3\
**Last updated:** [October 8, 2021, 2:02pm UTC](https://discourse.slicer.org/t/label-image-defects-after-saving/20062 "2021-10-08T14:02:38Z")

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Guys, I am not sure if that is the correct place to ask that, BUT I have nowhere to run. I used nrrd and slicerio extensions to separate .seg.nrrd files into separated segments or label images. Great. It gives me array…

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## [Merging Prostate Dose with Planning CT using segmented objects](https://discourse.slicer.org/t/merging-prostate-dose-with-planning-ct-using-segmented-objects/7735)

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**Author:** [@hexagram](https://discourse.slicer.org/u/hexagram)\
**Replies:** 8\
**Last updated:** [October 8, 2021, 1:56pm UTC](https://discourse.slicer.org/t/merging-prostate-dose-with-planning-ct-using-segmented-objects/7735 "2021-10-08T13:56:19Z")

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Hi, I have two imaeges in DICOM which I need to import into slices. The two images are a prostate dose (treatment plan) and a patient CT featuring segmented a prostate. The prostate dose is of a different size than the p…

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## [Volumes registration takes too long](https://discourse.slicer.org/t/volumes-registration-takes-too-long/20068)

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**Author:** [@lolamartinalonso](https://discourse.slicer.org/u/lolamartinalonso)\
**Replies:** 1\
**Last updated:** [October 8, 2021, 12:19pm UTC](https://discourse.slicer.org/t/volumes-registration-takes-too-long/20068 "2021-10-08T12:19:35Z")

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Operating system: 64 bit Slicer version: 4.11.20210226 Expected behavior: Volume registration taking 5 min not more Actual behavior: I am performing a volume registration of two volumes of 1700x1700x1737 slices with …

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## [Rotation center moves in Ctrl+Alt+Drag](https://discourse.slicer.org/t/rotation-center-moves-in-ctrl-alt-drag/19986)

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**Author:** [@gaoyi.cn](https://discourse.slicer.org/u/gaoyi.cn)\
**Replies:** 5\
**Last updated:** [October 8, 2021, 9:56am UTC](https://discourse.slicer.org/t/rotation-center-moves-in-ctrl-alt-drag/19986 "2021-10-08T09:56:37Z")

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Dear All, I’m trying to use the Ctrl+Alt+Drag to rotate the volume interactively. However the Center seems moving with rotation. But this only seems happen when I have a customized layout (shown in the video…

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## [Problem during segmentation of MRI scans and image spacing](https://discourse.slicer.org/t/problem-during-segmentation-of-mri-scans-and-image-spacing/20033)

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**Author:** [@Jonathan](https://discourse.slicer.org/u/Jonathan)\
**Replies:** 4\
**Last updated:** [October 8, 2021, 6:17am UTC](https://discourse.slicer.org/t/problem-during-segmentation-of-mri-scans-and-image-spacing/20033 "2021-10-08T06:17:31Z")

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Hi there! I encountered two issues while trying to segment and reconstruct cardiac MRI scans. While trying to perform manual segmentation of the images using paint (segmentation Editor). I was only able to segment t…

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## [Exporting Segment as OBJ through Python](https://discourse.slicer.org/t/exporting-segment-as-obj-through-python/10802)

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**Author:** [@Queen\_Rei](https://discourse.slicer.org/u/Queen_Rei)\
**Replies:** 7\
**Last updated:** [March 27, 2020, 7:01pm UTC](https://discourse.slicer.org/t/exporting-segment-as-obj-through-python/10802 "2020-03-27T19:01:09Z")

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Heya there! I would love to get some advice on how to export a segment I created to a file. I found this code from another topic and was wondering how and where I can the info. needed to do this for a .obj. Write to STL…

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## [Delays in 'Paint' function using Wacom Cintiq22](https://discourse.slicer.org/t/delays-in-paint-function-using-wacom-cintiq22/19952)

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**Author:** [@softdent](https://discourse.slicer.org/u/softdent)\
**Replies:** 3\
**Last updated:** [October 8, 2021, 1:33am UTC](https://discourse.slicer.org/t/delays-in-paint-function-using-wacom-cintiq22/19952 "2021-10-08T01:33:24Z")

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We’are using a Wacom Cintiq 22. and 3D slicer for 3D segmentation job for our research. Thank your for your great effort for the great software. In your 3D slicer version 4.11.20210226, if we use the ‘Paint’ function w…

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