# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=266

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

**Page:** 267

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## [export fiducials and 3d models](https://discourse.slicer.org/t/export-fiducials-and-3d-models/19154)

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**Author:** [@mlu](https://discourse.slicer.org/u/mlu)\
**Replies:** 1\
**Last updated:** [August 11, 2021, 4:16pm UTC](https://discourse.slicer.org/t/export-fiducials-and-3d-models/19154 "2021-08-11T16:16:03Z")

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Hi community I’me new to using 3D slicer. I can successfully export my 3D model onto STL files well. I’ve just put 5 fiducial markers on it using the mark up tool. I want export the 3d model with the points on. Anyo…

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## [Silent / Unattended Install](https://discourse.slicer.org/t/silent-unattended-install/6240)

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**Author:** [@cmguog](https://discourse.slicer.org/u/cmguog)\
**Replies:** 2\
**Last updated:** [March 21, 2019, 8:59pm UTC](https://discourse.slicer.org/t/silent-unattended-install/6240 "2019-03-21T20:59:12Z")

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Hi there, Could anyone tell me if there is a way to run a silent / unattended installation of Slicer on Windows 10 please? Many thanks

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## [How to annotate X-Ray or CT images and exporting with that/these annotation information(s) ? ](https://discourse.slicer.org/t/how-to-annotate-x-ray-or-ct-images-and-exporting-with-that-these-annotation-information-s/19079)

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**Author:** [@geonse](https://discourse.slicer.org/u/geonse)\
**Replies:** 4\
**Last updated:** [August 11, 2021, 1:24pm UTC](https://discourse.slicer.org/t/how-to-annotate-x-ray-or-ct-images-and-exporting-with-that-these-annotation-information-s/19079 "2021-08-11T13:24:51Z")

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Hi everyone, I’m completely new for the tool and I’d like to ask that is it possible to annotate medical images let’s say for a brain tumor and exporting that annotation information such as coordinates (Xmin Ymin Xmax Y…

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## [How to get all the observers of a node?](https://discourse.slicer.org/t/how-to-get-all-the-observers-of-a-node/19150)

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**Author:** [@slicer](https://discourse.slicer.org/u/slicer)\
**Replies:** 1\
**Last updated:** [August 11, 2021, 1:21pm UTC](https://discourse.slicer.org/t/how-to-get-all-the-observers-of-a-node/19150 "2021-08-11T13:21:11Z")

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Operating system: Windows Version: 4.11 How to get all the observers of a node?

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## [Upcoming downtime for download.slicer.org and extension manager due to package server transition](https://discourse.slicer.org/t/upcoming-downtime-for-download-slicer-org-and-extension-manager-due-to-package-server-transition/17444)

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**Author:** [@Sam\_Horvath](https://discourse.slicer.org/u/Sam_Horvath)\
**Replies:** 1\
**Last updated:** [August 11, 2021, 10:52am UTC](https://discourse.slicer.org/t/upcoming-downtime-for-download-slicer-org-and-extension-manager-due-to-package-server-transition/17444 "2021-08-11T10:52:02Z")

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Hi all: Over the next two weeks, the Slicer development team at Kitware will be transitioning to new backend servers for hosting the Slicer installer packages and extensions. We are moving to a server built on the newe…

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## [Annotations for separate volumes](https://discourse.slicer.org/t/annotations-for-separate-volumes/19148)

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**Author:** [@caesarsalad](https://discourse.slicer.org/u/caesarsalad)\
**Replies:** 3\
**Last updated:** [August 11, 2021, 4:44am UTC](https://discourse.slicer.org/t/annotations-for-separate-volumes/19148 "2021-08-11T04:44:50Z")

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Hello, I have loaded multiple master volumes as shown: I wish to annotate each volume separately, ex) annotate a slice from volume 1 but have it stay in that volume and not affect volume 2. Is there a way to do this…

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## [Incorrect area result using closed curve markups measurement](https://discourse.slicer.org/t/incorrect-area-result-using-closed-curve-markups-measurement/19114)

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**Author:** [@VincentYu](https://discourse.slicer.org/u/VincentYu)\
**Replies:** 2\
**Last updated:** [August 11, 2021, 2:11am UTC](https://discourse.slicer.org/t/incorrect-area-result-using-closed-curve-markups-measurement/19114 "2021-08-11T02:11:41Z")

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OS: Windows10 x64 Slicer version: 4.13.0-2021-08-08 Image used: built-in sample data (Chest CT) video link I found the results of measured area using the closed curve markup with linear curve were inconsistent when I …

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## [Why "closed curve" cannot generate Baffle model in Baffle Planner module?](https://discourse.slicer.org/t/why-closed-curve-cannot-generate-baffle-model-in-baffle-planner-module/19076)

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**Author:** [@StephenLeePeng](https://discourse.slicer.org/u/StephenLeePeng)\
**Replies:** 6\
**Last updated:** [August 10, 2021, 4:39pm UTC](https://discourse.slicer.org/t/why-closed-curve-cannot-generate-baffle-model-in-baffle-planner-module/19076 "2021-08-10T16:39:30Z")

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Operating system: Ubuntu 18.04 Slicer version: self-build, Slicer 4.13.0 Expected behavior: First I load a stl file, then I switch to “Markups” module, and draw a closed curve around the stl model. Then I switch to “B…

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## [Exporting multiple dose distributions to DICOM](https://discourse.slicer.org/t/exporting-multiple-dose-distributions-to-dicom/19101)

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**Author:** [@sokol](https://discourse.slicer.org/u/sokol)\
**Replies:** 4\
**Last updated:** [August 10, 2021, 1:36pm UTC](https://discourse.slicer.org/t/exporting-multiple-dose-distributions-to-dicom/19101 "2021-08-10T13:36:36Z")

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Dear Slicer experts, I am working with a research treatment planning system, and my CTs, as well as the dose distributions, are in the .nrrd format, and I need to convert them to DICOM. So far I’ve been following the s…

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## [vtkIterativeClosestPointTransform - number of points in source and target](https://discourse.slicer.org/t/vtkiterativeclosestpointtransform-number-of-points-in-source-and-target/18789)

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**Author:** [@Greydon\_Gilmore](https://discourse.slicer.org/u/Greydon_Gilmore)\
**Replies:** 5\
**Last updated:** [August 10, 2021, 3:37am UTC](https://discourse.slicer.org/t/vtkiterativeclosestpointtransform-number-of-points-in-source-and-target/18789 "2021-08-10T03:37:00Z")

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Hi, I am using vtkIterativeClosestPointTransform in a pipeline that detects radiopaque stereotactic frame fiducials in a CT/MRI. The geometry of the stereotactic frame is know. For a single CT volume there could be ~700…

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## [How to detect the event when one fiducial is clicked (focused) and how to set the state of this?](https://discourse.slicer.org/t/how-to-detect-the-event-when-one-fiducial-is-clicked-focused-and-how-to-set-the-state-of-this/19119)

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**Author:** [@slicer](https://discourse.slicer.org/u/slicer)\
**Replies:** 1\
**Last updated:** [August 9, 2021, 11:56pm UTC](https://discourse.slicer.org/t/how-to-detect-the-event-when-one-fiducial-is-clicked-focused-and-how-to-set-the-state-of-this/19119 "2021-08-09T23:56:51Z")

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Operating system: Windows Slicer version: 4.11 Expected behavior: Actual behavior: When we click a fiducial in the view window, this fiducial will be focused and three views will be adjusted according to this fiducia…

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## [Export segmentation as image sequence (tif. for ImageJ)](https://discourse.slicer.org/t/export-segmentation-as-image-sequence-tif-for-imagej/19124)

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**Author:** [@Josefin](https://discourse.slicer.org/u/Josefin)\
**Replies:** 1\
**Last updated:** [August 9, 2021, 3:19pm UTC](https://discourse.slicer.org/t/export-segmentation-as-image-sequence-tif-for-imagej/19124 "2021-08-09T15:19:46Z")

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Hi! I’d like to export a segmentation as an image sequence/tif.file, that can be opened with ImageJ. The volume rendering is less important in this case, I’m mostly interested in the individual slices of the segmented v…

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## [Recommended approach to store tutorial materials](https://discourse.slicer.org/t/recommended-approach-to-store-tutorial-materials/9235)

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**Author:** [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Replies:** 6\
**Last updated:** [November 26, 2019, 3:16pm UTC](https://discourse.slicer.org/t/recommended-approach-to-store-tutorial-materials/9235 "2019-11-26T15:16:40Z")

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Today I discovered that a PDF linked from a documentation wiki page disappeared (wiki page: https://www.slicer.org/wiki/Documentation/Nightly/Modules/MultiVolumeExplorer, broken link: https://www.slicer.org/slicerWiki/im…

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## [Midpoint of an Open Curve](https://discourse.slicer.org/t/midpoint-of-an-open-curve/13766)

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**Author:** [@NiinaIn3D](https://discourse.slicer.org/u/NiinaIn3D)\
**Replies:** 3\
**Last updated:** [August 8, 2021, 2:02pm UTC](https://discourse.slicer.org/t/midpoint-of-an-open-curve/13766 "2021-08-08T14:02:47Z")

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Hi there, is there a way to determine a midpoint of an Open curve created in Markups? I.e. midpoint of the length, not centreline. Or if not with Open curve, possibly for a curve model created using Curve Maker? Many t…

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## [Radius of Centreline Curve](https://discourse.slicer.org/t/radius-of-centreline-curve/19103)

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**Author:** [@AshvinGupta](https://discourse.slicer.org/u/AshvinGupta)\
**Replies:** 1\
**Last updated:** [August 6, 2021, 3:57pm UTC](https://discourse.slicer.org/t/radius-of-centreline-curve/19103 "2021-08-06T15:57:25Z")

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Hello, I am trying to find the radius of vessels using the extract centreline module. From reading previous posts on 3D slicer, I am able to find the radius of vessels if I create a centreline model using the following c…

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## [Girder Integration](https://discourse.slicer.org/t/girder-integration/19084)

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**Author:** [@vickyapril02](https://discourse.slicer.org/u/vickyapril02)\
**Replies:** 4\
**Last updated:** [August 6, 2021, 8:08am UTC](https://discourse.slicer.org/t/girder-integration/19084 "2021-08-06T08:08:34Z")

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Hi, We are a newbie to 3D Slicer , and we are using Girder as a Data Management Tool for our project. We are planning to integrate Girder with 3D Slicer. Any leads would be a great help for our team Thanks and Regar…

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## [Slicer crashes when trying to open xtekct .vol files](https://discourse.slicer.org/t/slicer-crashes-when-trying-to-open-xtekct-vol-files/19077)

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**Author:** [@Ntizopoulos\_K](https://discourse.slicer.org/u/Ntizopoulos_K)\
**Replies:** 2\
**Last updated:** [August 5, 2021, 8:38pm UTC](https://discourse.slicer.org/t/slicer-crashes-when-trying-to-open-xtekct-vol-files/19077 "2021-08-05T20:38:03Z")

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Hi, there!! I am trying to load some .vol files, but the software keeps crashing.

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## [How do I set segmentation resolution](https://discourse.slicer.org/t/how-do-i-set-segmentation-resolution/19068)

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**Author:** [@Alberto\_Paredes](https://discourse.slicer.org/u/Alberto_Paredes)\
**Replies:** 3\
**Last updated:** [August 5, 2021, 8:21pm UTC](https://discourse.slicer.org/t/how-do-i-set-segmentation-resolution/19068 "2021-08-05T20:21:38Z")

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Operating system: Windows 10 Slicer version: Slicer 4.11.20210226 Question: I am completely new to 3D Slicer. I was working on a segmentation and when trying to make it hollow, I was not able to with my desired shell t…

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## [Volume Rendering does not work](https://discourse.slicer.org/t/volume-rendering-does-not-work/19045)

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**Author:** [@Jakob\_Timme](https://discourse.slicer.org/u/Jakob_Timme)\
**Replies:** 8\
**Last updated:** [August 5, 2021, 12:42pm UTC](https://discourse.slicer.org/t/volume-rendering-does-not-work/19045 "2021-08-05T12:42:08Z")

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Hello everyone! I am using Slicer to find 3D anatomical landmarks on lungs and was trying to use the volume rendering option, but it is not letting me use my file with this feature. Does my computer not support volume re…

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## [3D cardiac CT to 4D in 3D Slicer?](https://discourse.slicer.org/t/3d-cardiac-ct-to-4d-in-3d-slicer/19038)

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**Author:** [@xiaolin](https://discourse.slicer.org/u/xiaolin)\
**Replies:** 5\
**Last updated:** [August 5, 2021, 8:02am UTC](https://discourse.slicer.org/t/3d-cardiac-ct-to-4d-in-3d-slicer/19038 "2021-08-05T08:02:36Z")

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Hello, I want to use the 3D cardiac CT to get the 4D data. Does anybody know there is a special module in 3D slicer that can perform? Thanks in advance.

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## [Get a leftmost/rightmost coordinate with SimpleITK](https://discourse.slicer.org/t/get-a-leftmost-rightmost-coordinate-with-simpleitk/18811)

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**Author:** [@sandyaa0313](https://discourse.slicer.org/u/sandyaa0313)\
**Replies:** 7\
**Last updated:** [August 5, 2021, 7:31am UTC](https://discourse.slicer.org/t/get-a-leftmost-rightmost-coordinate-with-simpleitk/18811 "2021-08-05T07:31:49Z")

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Operating system: windows Slicer version: 4.11.20200930 I create a labelmap volume node and read it as a SimpleITKimage. Now I show this labelmap volume in red, green and yellow slice window. I want to know how to ge…

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## [Dicom too large and upside down](https://discourse.slicer.org/t/dicom-too-large-and-upside-down/19054)

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**Author:** [@B4D](https://discourse.slicer.org/u/B4D)\
**Replies:** 1\
**Last updated:** [August 4, 2021, 6:35pm UTC](https://discourse.slicer.org/t/dicom-too-large-and-upside-down/19054 "2021-08-04T18:35:41Z")

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I have a problem with a dicom file. The segmentation model is very large and the dicom is upside down. I would think that this would be caused by the equipment or software used to create the dicom? The CBCT equipment is…

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## [Separating Cortical and trabecular region of Talus bone](https://discourse.slicer.org/t/separating-cortical-and-trabecular-region-of-talus-bone/19049)

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**Author:** [@Manav\_Kothari](https://discourse.slicer.org/u/Manav_Kothari)\
**Replies:** 4\
**Last updated:** [August 4, 2021, 3:56pm UTC](https://discourse.slicer.org/t/separating-cortical-and-trabecular-region-of-talus-bone/19049 "2021-08-04T15:56:13Z")

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I am interested in separating cortical and trabecular region of Talus bone and generate individual STL file. There is one add-on in Analyze Direct software named Bone Microarchitecture Analysis (BMA). Is there any simila…

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## [Is there an event detecting the change of the time in time sequence browser?](https://discourse.slicer.org/t/is-there-an-event-detecting-the-change-of-the-time-in-time-sequence-browser/19055)

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**Author:** [@slicer](https://discourse.slicer.org/u/slicer)\
**Replies:** 1\
**Last updated:** [August 4, 2021, 2:47pm UTC](https://discourse.slicer.org/t/is-there-an-event-detecting-the-change-of-the-time-in-time-sequence-browser/19055 "2021-08-04T14:47:22Z")

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Operating system: Windows 10 Slicer version: 4.11 Is there an event detecting the change of the time in time sequence browser? I want to build my own extension and how can I detect the real-time change of the time valu…

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## [Reducing noise in large object CT scans](https://discourse.slicer.org/t/reducing-noise-in-large-object-ct-scans/18978)

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**Author:** [@CETUS](https://discourse.slicer.org/u/CETUS)\
**Replies:** 2\
**Last updated:** [August 4, 2021, 1:18pm UTC](https://discourse.slicer.org/t/reducing-noise-in-large-object-ct-scans/18978 "2021-08-04T13:18:34Z")

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Hi everyone, I am relatively new to Slicer. I was interested to inquire what options 3D slicer has for reducing noise in CT scans of large objects. In this case I am using archived scans of large animal specimens. My pla…

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## [Have the "open surface editing" extension or function is published?](https://discourse.slicer.org/t/have-the-open-surface-editing-extension-or-function-is-published/18923)

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**Author:** [@StephenLeePeng](https://discourse.slicer.org/u/StephenLeePeng)\
**Replies:** 8\
**Last updated:** [August 4, 2021, 3:05am UTC](https://discourse.slicer.org/t/have-the-open-surface-editing-extension-or-function-is-published/18923 "2021-08-04T03:05:31Z")

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Operating system: Ubuntu 18.04 Slicer version: self-build, 4.13.0-2021-07-07 Expected behavior: As the question topic: " How to create an open surface constrained by markup points，and split the current segment by this…

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## [Draw effect sometimes not applying](https://discourse.slicer.org/t/draw-effect-sometimes-not-applying/19046)

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**Author:** [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Replies:** 5\
**Last updated:** [August 4, 2021, 2:27am UTC](https://discourse.slicer.org/t/draw-effect-sometimes-not-applying/19046 "2021-08-04T02:27:12Z")

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Does anyone know what might be going on here? I created the new segmentation from an option in the SegmentEditor segmentation node combobox and then the foreground volume (“FusedVolume”) was selected instead of the “Sele…

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## [Tiff Stack Loading Problem - 1 view strange](https://discourse.slicer.org/t/tiff-stack-loading-problem-1-view-strange/19047)

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**Author:** [@ebryson](https://discourse.slicer.org/u/ebryson)\
**Replies:** 4\
**Last updated:** [August 4, 2021, 1:15am UTC](https://discourse.slicer.org/t/tiff-stack-loading-problem-1-view-strange/19047 "2021-08-04T01:15:42Z")

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Hi, I loaded a tiff stack with Image Stacks, the files were in order and I think the spacing is correct but my middle view as you can see from the photo is not the mouse skulls… any idea where I went wrong? (The far rig…

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## [Scale Mesh in Surface Toolbox Module trouble with centers](https://discourse.slicer.org/t/scale-mesh-in-surface-toolbox-module-trouble-with-centers/19016)

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**Author:** [@apparrilla](https://discourse.slicer.org/u/apparrilla)\
**Replies:** 2\
**Last updated:** [August 3, 2021, 5:39pm UTC](https://discourse.slicer.org/t/scale-mesh-in-surface-toolbox-module-trouble-with-centers/19016 "2021-08-03T17:39:30Z")

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Hi everyone, I´m trying to scale a model with Scale Mesh Tool of Surface Toolbox Module and I have some problem with the way it works with centers. An example: Red model is the result of a 2x scale operation of the…

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## [How to create 3D format for FEA analysis](https://discourse.slicer.org/t/how-to-create-3d-format-for-fea-analysis/13514)

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**Author:** [@masud407](https://discourse.slicer.org/u/masud407)\
**Replies:** 1\
**Last updated:** [August 3, 2021, 4:26pm UTC](https://discourse.slicer.org/t/how-to-create-3d-format-for-fea-analysis/13514 "2021-08-03T16:26:23Z")

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Hello, I segmented a CT data using slicer and saved the file as STP format. I would like to mesh it using HyperMesh which was unable to take that STL data. I tried to convert the STL format into STEP/IGES/SLD format usi…

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