# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=265

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

**Page:** 266

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## [Diffusion brain: DICOM to NRRD conversion](https://discourse.slicer.org/t/diffusion-brain-dicom-to-nrrd-conversion/19129)

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**Author:** [@rahulpaul](https://discourse.slicer.org/u/rahulpaul)\
**Replies:** 4\
**Last updated:** [August 18, 2021, 12:45pm UTC](https://discourse.slicer.org/t/diffusion-brain-dicom-to-nrrd-conversion/19129 "2021-08-18T12:45:25Z")

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Operating system: MacOS Slicer version: 4.11 I am having little difficulty in converting the Dicom images to NRRD using DWIConvert. I believe something is not happening correctly during conversion as after conversion I…

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## [Main application response, sub threading rendering](https://discourse.slicer.org/t/main-application-response-sub-threading-rendering/19225)

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**Author:** [@xianger-qi](https://discourse.slicer.org/u/xianger-qi)\
**Replies:** 7\
**Last updated:** [August 18, 2021, 12:14pm UTC](https://discourse.slicer.org/t/main-application-response-sub-threading-rendering/19225 "2021-08-18T12:14:36Z")

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I have a question. If my application window has 2 slicer rendering windows, and each rendering window consumes 50ms to render a framerate, and backend sends rendering request with 10 frequency. that indicate the applica…

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## [Scissor operation in Segmentation Editor](https://discourse.slicer.org/t/scissor-operation-in-segmentation-editor/19249)

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**Author:** [@Manav\_Kothari](https://discourse.slicer.org/u/Manav_Kothari)\
**Replies:** 1\
**Last updated:** [August 18, 2021, 11:35am UTC](https://discourse.slicer.org/t/scissor-operation-in-segmentation-editor/19249 "2021-08-18T11:35:30Z")

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I would like to generate a complex domain from a DICOM file by specifying the software of the domain in each and every slide/image. However, the scissor tool operates through the entire segmentation. Is there any way to …

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## [Module list missing on Mac](https://discourse.slicer.org/t/module-list-missing-on-mac/19234)

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**Author:** [@Alex\_MK](https://discourse.slicer.org/u/Alex_MK)\
**Replies:** 2\
**Last updated:** [August 18, 2021, 9:29am UTC](https://discourse.slicer.org/t/module-list-missing-on-mac/19234 "2021-08-18T09:29:28Z")

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Operating system: Mac OS 10.14 Slicer version: 4.13 and 4.11 Expected behavior: start Actual behavior: does not find module list Hi there, I am trying to get 3D Slicer run on a Mac (10.14). The program does start and…

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## [Segmentation in 3D](https://discourse.slicer.org/t/segmentation-in-3d/19222)

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**Author:** [@teresabaena](https://discourse.slicer.org/u/teresabaena)\
**Replies:** 2\
**Last updated:** [August 18, 2021, 8:52am UTC](https://discourse.slicer.org/t/segmentation-in-3d/19222 "2021-08-18T08:52:08Z")

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Sistema operativo: Mac Versión de la rebanadora: Comportamiento esperado: Comportamiento real: Hello good morning, I would like to know how to be able to segment in 3D by selecting a plane, that is, I need to select …

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## [Getting slice index from background layer](https://discourse.slicer.org/t/getting-slice-index-from-background-layer/19197)

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**Author:** [@sogo](https://discourse.slicer.org/u/sogo)\
**Replies:** 6\
**Last updated:** [August 17, 2021, 10:39pm UTC](https://discourse.slicer.org/t/getting-slice-index-from-background-layer/19197 "2021-08-17T22:39:21Z")

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Hi, We want to use this code to get the slice number/index (found it on script repository but now the code is gone and we are unable to refer back to it as script repository documentation is updated) and wanted to confi…

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## [Slicer IGT extension build errors in visual studio 2019](https://discourse.slicer.org/t/slicer-igt-extension-build-errors-in-visual-studio-2019/19236)

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**Author:** [@Raj\_Kumar\_Ranabhat](https://discourse.slicer.org/u/Raj_Kumar_Ranabhat)\
**Replies:** 1\
**Last updated:** [August 17, 2021, 6:06pm UTC](https://discourse.slicer.org/t/slicer-igt-extension-build-errors-in-visual-studio-2019/19236 "2021-08-17T18:06:51Z")

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Hi @lassoan I was able to build slicer both on debug and release mode. I would like to build Slicer IGT extension which is required for my project but I am getting several errors. Steps I have used to build is from Doc…

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## [How to save labelmap information in a volumetric mesh?](https://discourse.slicer.org/t/how-to-save-labelmap-information-in-a-volumetric-mesh/19163)

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**Author:** [@Matheus](https://discourse.slicer.org/u/Matheus)\
**Replies:** 5\
**Last updated:** [August 17, 2021, 6:01pm UTC](https://discourse.slicer.org/t/how-to-save-labelmap-information-in-a-volumetric-mesh/19163 "2021-08-17T18:01:13Z")

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Hello everyone! I segmented some DICOM files and turned the segmentation into a volumetric mesh. I have different segments for different biological tissues and I want to store the segment ID information after transformi…

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## [Export image series in different projections from .nii file](https://discourse.slicer.org/t/export-image-series-in-different-projections-from-nii-file/19186)

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**Author:** [@Emporio](https://discourse.slicer.org/u/Emporio)\
**Replies:** 3\
**Last updated:** [August 17, 2021, 5:40am UTC](https://discourse.slicer.org/t/export-image-series-in-different-projections-from-nii-file/19186 "2021-08-17T05:40:55Z")

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Hello dear experts. My English is very bad and therefore I am writing to you via google translate. I have a problem. How to get and save a series of photos from a .nii file from different projections in headless mode. I …

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## [Registering only one branch of a segment](https://discourse.slicer.org/t/registering-only-one-branch-of-a-segment/19218)

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**Author:** [@parvaneh.a](https://discourse.slicer.org/u/parvaneh.a)\
**Replies:** 3\
**Last updated:** [August 17, 2021, 3:44am UTC](https://discourse.slicer.org/t/registering-only-one-branch-of-a-segment/19218 "2021-08-17T03:44:48Z")

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Operating system:ubuntu Slicer version: Expected behavior:Registering only one branch of a segment Actual behavior: Hi, I have a segment like the figure below. As you see there are four branches connected to the main…

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## [Feedbacks / Updating segment editor node after each paint/erase effect](https://discourse.slicer.org/t/feedbacks-updating-segment-editor-node-after-each-paint-erase-effect/19187)

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**Author:** [@Raj\_Kumar\_Ranabhat](https://discourse.slicer.org/u/Raj_Kumar_Ranabhat)\
**Replies:** 2\
**Last updated:** [August 17, 2021, 2:02am UTC](https://discourse.slicer.org/t/feedbacks-updating-segment-editor-node-after-each-paint-erase-effect/19187 "2021-08-17T02:02:11Z")

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Hi andras, @lassoan Are there any way to check programmatically using python whether erase/paint has been done? In our project, we are using erase effect to erase the portion of the segmentation node. First, we set vo…

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## [How to reveal jaw with teeth over skull](https://discourse.slicer.org/t/how-to-reveal-jaw-with-teeth-over-skull/19194)

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**Author:** [@Fatih\_Hamircu](https://discourse.slicer.org/u/Fatih_Hamircu)\
**Replies:** 4\
**Last updated:** [August 16, 2021, 11:16pm UTC](https://discourse.slicer.org/t/how-to-reveal-jaw-with-teeth-over-skull/19194 "2021-08-16T23:16:29Z")

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Hello, From the skull, I want to reveal the lower jaw together with the teeth. I want to see 3D. I want to reveal it in Stl format and make a model from a 3D printer. I saw the videos on YouTube. I do the tissue togeth…

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## [Slice view freeze when using tablet](https://discourse.slicer.org/t/slice-view-freeze-when-using-tablet/14831)

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**Author:** [@hherhold](https://discourse.slicer.org/u/hherhold)\
**Replies:** 4\
**Last updated:** [August 16, 2021, 2:47pm UTC](https://discourse.slicer.org/t/slice-view-freeze-when-using-tablet/14831 "2021-08-16T14:47:11Z")

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Sometimes when using my Wacom tablet and Segment Editor, a slice view will freeze up and become unresponsive. The remaining slice views will work just fine. It seems like this happens when the slice view gets a lot of ev…

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## [MultiVolumeExplorer - labeling chart error](https://discourse.slicer.org/t/multivolumeexplorer-labeling-chart-error/15508)

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**Author:** [@Diana](https://discourse.slicer.org/u/Diana)\
**Replies:** 15\
**Last updated:** [August 16, 2021, 8:49am UTC](https://discourse.slicer.org/t/multivolumeexplorer-labeling-chart-error/15508 "2021-08-16T08:49:33Z")

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Hi there, I am expieriencing an error when I try using the static plotting in MultiVolumeExplorer when I want to plot signal drop with time: Traceback (most recent call last): File “C:/Users/Diana/AppData/Local/NA-MI…

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## [Visible human project - loading volume from PNG stack](https://discourse.slicer.org/t/visible-human-project-loading-volume-from-png-stack/18819)

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**Author:** [@CP\_HO](https://discourse.slicer.org/u/CP_HO)\
**Replies:** 4\
**Last updated:** [August 15, 2021, 7:55pm UTC](https://discourse.slicer.org/t/visible-human-project-loading-volume-from-png-stack/18819 "2021-08-15T19:55:08Z")

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Operating system: windows 10 professional Slicer version:4.11 Expected behavior: open header Actual behavior: cannot open header Dear all: I wish to use the data in the Visual Human Anatomy project to do 3D renderin…

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## [Cannot find Curved Planar reformat Module in the Extension Manager](https://discourse.slicer.org/t/cannot-find-curved-planar-reformat-module-in-the-extension-manager/19183)

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**Author:** [@xiaolin](https://discourse.slicer.org/u/xiaolin)\
**Replies:** 1\
**Last updated:** [August 13, 2021, 8:06pm UTC](https://discourse.slicer.org/t/cannot-find-curved-planar-reformat-module-in-the-extension-manager/19183 "2021-08-13T20:06:48Z")

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Hi Everyone, I am here again. I am trying to add a centerline into my animal heart model in 3D Slicer (Win. 4.11.20210226) as the tutorial New vessel branch extraction module for 3D Slicer - YouTube. But I cannot find t…

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## [Combine Models(difference operation) sometimes result empty mesh?](https://discourse.slicer.org/t/combine-models-difference-operation-sometimes-result-empty-mesh/19169)

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**Author:** [@StephenLeePeng](https://discourse.slicer.org/u/StephenLeePeng)\
**Replies:** 2\
**Last updated:** [August 13, 2021, 2:08pm UTC](https://discourse.slicer.org/t/combine-models-difference-operation-sometimes-result-empty-mesh/19169 "2021-08-13T14:08:39Z")

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@lassoan , I have searched surface cut for some time. I loaded a liver stl model, then I created a closed curve in Markups module, and generate a Baffle model in Baffle Planner module(in SlicerHeart extension), then I s…

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## [Readjusting threshold on singular segment](https://discourse.slicer.org/t/readjusting-threshold-on-singular-segment/19164)

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**Author:** [@jrickman](https://discourse.slicer.org/u/jrickman)\
**Replies:** 3\
**Last updated:** [August 13, 2021, 8:13am UTC](https://discourse.slicer.org/t/readjusting-threshold-on-singular-segment/19164 "2021-08-13T08:13:49Z")

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How are you able to readjust the threshold of a singular segment excluding others? For context: trying to analyze singular bones from scan of multiple bones in a tube. Used threshold to select the bones and then segment…

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## [How to measure distance along the surface of segmented or volume rendering aorta?](https://discourse.slicer.org/t/how-to-measure-distance-along-the-surface-of-segmented-or-volume-rendering-aorta/19135)

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**Author:** [@chendong9416](https://discourse.slicer.org/u/chendong9416)\
**Replies:** 4\
**Last updated:** [August 13, 2021, 6:02am UTC](https://discourse.slicer.org/t/how-to-measure-distance-along-the-surface-of-segmented-or-volume-rendering-aorta/19135 "2021-08-13T06:02:20Z")

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i want to measure distance between 2 points along the surface of aorta, how can i achieve it? thanks!

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## [Embed html file into the scripted module](https://discourse.slicer.org/t/embed-html-file-into-the-scripted-module/18975)

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**Author:** [@Hualin](https://discourse.slicer.org/u/Hualin)\
**Replies:** 4\
**Last updated:** [August 13, 2021, 2:48am UTC](https://discourse.slicer.org/t/embed-html-file-into-the-scripted-module/18975 "2021-08-13T02:48:41Z")

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Operating system: Ubuntu18.04 Slicer version: 4.13.0-2021-07-21 r3042 / 2a223c0 Hello， I am trying to generate a scripted module with embed html. Then I use webEngineView and set the webEngineView url to my html file.…

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## [VMTK library is not found and extensions are imcompatibe with slicer (MAC and Win, 4.13.0 built 2021-08-11 )](https://discourse.slicer.org/t/vmtk-library-is-not-found-and-extensions-are-imcompatibe-with-slicer-mac-and-win-4-13-0-built-2021-08-11/19166)

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**Author:** [@xiaolin](https://discourse.slicer.org/u/xiaolin)\
**Replies:** 2\
**Last updated:** [August 12, 2021, 6:15pm UTC](https://discourse.slicer.org/t/vmtk-library-is-not-found-and-extensions-are-imcompatibe-with-slicer-mac-and-win-4-13-0-built-2021-08-11/19166 "2021-08-12T18:15:23Z")

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Hi everyone. Yesterday I downloaded Slicer 4.13.0 2021-08-11 in Mac and Windows, but there are some issues regarding the extensions ( incompatible with slicer) , VMTK library is not found when I used the " ExtractCenterl…

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## [stl export coordinate system?](https://discourse.slicer.org/t/stl-export-coordinate-system/19078)

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**Author:** [@Benjamin-Fouquet](https://discourse.slicer.org/u/Benjamin-Fouquet)\
**Replies:** 3\
**Last updated:** [August 12, 2021, 12:48pm UTC](https://discourse.slicer.org/t/stl-export-coordinate-system/19078 "2021-08-12T12:48:08Z")

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Hello everybody, I would like to understand in what coordinate system an .stl is exported when exporting a segmentation. From what I understand from: Coordinate systems - Slicer Wiki is that it would be exported in anat…

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## [anyone know of any good databases for knee ct scans](https://discourse.slicer.org/t/anyone-know-of-any-good-databases-for-knee-ct-scans/18853)

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**Author:** [@Liam\_Butler](https://discourse.slicer.org/u/Liam_Butler)\
**Replies:** 1\
**Last updated:** [August 12, 2021, 5:24am UTC](https://discourse.slicer.org/t/anyone-know-of-any-good-databases-for-knee-ct-scans/18853 "2021-08-12T05:24:51Z")

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would need images where the knee has undergone a knee replacement

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## [Where can I find Shoulder/Knee MRI DICOM file?](https://discourse.slicer.org/t/where-can-i-find-shoulder-knee-mri-dicom-file/19088)

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**Author:** [@arif](https://discourse.slicer.org/u/arif)\
**Replies:** 1\
**Last updated:** [August 12, 2021, 5:24am UTC](https://discourse.slicer.org/t/where-can-i-find-shoulder-knee-mri-dicom-file/19088 "2021-08-12T05:24:23Z")

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Hi I need shoulder and knee MRI files for a research. Any ideas on where I can find it? Thanks!

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## [Getting DICOM information from Volume in Jupyter Notebook](https://discourse.slicer.org/t/getting-dicom-information-from-volume-in-jupyter-notebook/18895)

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**Author:** [@JoieLiu](https://discourse.slicer.org/u/JoieLiu)\
**Replies:** 1\
**Last updated:** [August 12, 2021, 4:48am UTC](https://discourse.slicer.org/t/getting-dicom-information-from-volume-in-jupyter-notebook/18895 "2021-08-12T04:48:52Z")

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I have loaded a volume into Jupyter Notebook from Python and I am looking to find the birthday of the patient in that volume. Is there a simple way to do this? I have looked at ways regarding the volume’s DICOM data, but…

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## [How to perform rigid registration, and copy roi from moving image to fixed image?](https://discourse.slicer.org/t/how-to-perform-rigid-registration-and-copy-roi-from-moving-image-to-fixed-image/18954)

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**Author:** [@yuanzilong0213](https://discourse.slicer.org/u/yuanzilong0213)\
**Replies:** 1\
**Last updated:** [August 12, 2021, 4:46am UTC](https://discourse.slicer.org/t/how-to-perform-rigid-registration-and-copy-roi-from-moving-image-to-fixed-image/18954 "2021-08-12T04:46:59Z")

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Hi, everyone！I want to know how to perform rigid registration, and copy roi from moving image to fixed image? Thanks！

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## [3D Slicer not launching even after reinstall](https://discourse.slicer.org/t/3d-slicer-not-launching-even-after-reinstall/18977)

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**Author:** [@Dfroerer](https://discourse.slicer.org/u/Dfroerer)\
**Replies:** 1\
**Last updated:** [August 12, 2021, 4:45am UTC](https://discourse.slicer.org/t/3d-slicer-not-launching-even-after-reinstall/18977 "2021-08-12T04:45:41Z")

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Hi all, Hopefully someone can help me fix the issue I have been having. I recently updated the GPU in my computer from a 1070 to an RTX 3070 Ti. All drivers are up to date, running the most updated version of windows on…

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## [Extensions--Slicer-Wasp](https://discourse.slicer.org/t/extensions-slicer-wasp/19152)

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**Author:** [@skyhsu](https://discourse.slicer.org/u/skyhsu)\
**Replies:** 3\
**Last updated:** [August 12, 2021, 4:29am UTC](https://discourse.slicer.org/t/extensions-slicer-wasp/19152 "2021-08-12T04:29:15Z")

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Hi , I am search for some tool that can do simple segmentation job, I found the extension Slicer-Wasp and install it, but it can’t run normally, Are there any steps to fix? Thanks Sky

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## [Combine Models vtkbool error](https://discourse.slicer.org/t/combine-models-vtkbool-error/19162)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 2\
**Last updated:** [August 12, 2021, 1:23am UTC](https://discourse.slicer.org/t/combine-models-vtkbool-error/19162 "2021-08-12T01:23:47Z")

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Hello, I’ve been trying to use the new “Combine Models” module from the Sandbox extension, but have run into errors. Specifically, the error is “Contact ends suddenly at point 2.” from VTK, and the created union model is…

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## [Vertebra segmentation for volume masking](https://discourse.slicer.org/t/vertebra-segmentation-for-volume-masking/19143)

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**Author:** [@ni5h](https://discourse.slicer.org/u/ni5h)\
**Replies:** 5\
**Last updated:** [August 11, 2021, 4:35pm UTC](https://discourse.slicer.org/t/vertebra-segmentation-for-volume-masking/19143 "2021-08-11T16:35:25Z")

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@lassoan Operating system: windows Slicer version: 4.11.2021 Expected behavior: i need to annotate off one level only (L1). I cannot crop this because this is not we require for analysis (we need all of the anatomy to…

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