# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=281

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

**Page:** 282

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## [How to cut multivolume dicom into single ones?](https://discourse.slicer.org/t/how-to-cut-multivolume-dicom-into-single-ones/17570)

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**Author:** [@Mikolaj\_Drab](https://discourse.slicer.org/u/Mikolaj_Drab)\
**Replies:** 2\
**Last updated:** [May 13, 2021, 6:16am UTC](https://discourse.slicer.org/t/how-to-cut-multivolume-dicom-into-single-ones/17570 "2021-05-13T06:16:17Z")

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Operating system: Windows 10 Slicer version: 4.11 Expected behavior: I load multivolume (contrast enhaced dyn) dicom to make a subtraction. Actual behavior: When the multivolume dicom is loaded, Slicer only shows the …

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## [Vessel Segmentation version 4.11.20210226](https://discourse.slicer.org/t/vessel-segmentation-version-4-11-20210226/17575)

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**Author:** [@Gonzalo\_Rojas\_Costa](https://discourse.slicer.org/u/Gonzalo_Rojas_Costa)\
**Replies:** 1\
**Last updated:** [May 13, 2021, 5:48am UTC](https://discourse.slicer.org/t/vessel-segmentation-version-4-11-20210226/17575 "2021-05-13T05:48:57Z")

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How can I do the a vessel segmentation using 3D Slicer 4.11.20210226 or 4.11.20200930 ?

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## [displayed inverted left and right](https://discourse.slicer.org/t/displayed-inverted-left-and-right/17584)

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**Author:** [@jhchoi](https://discourse.slicer.org/u/jhchoi)\
**Replies:** 1\
**Last updated:** [May 13, 2021, 5:36am UTC](https://discourse.slicer.org/t/displayed-inverted-left-and-right/17584 "2021-05-13T05:36:06Z")

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I am working by importing the dicom file obtained through Rat’s heart micro ct. Unlike the actual captured image, like the screenshot, the 3d slicer’s working image is displayed inverted left and right. Is there a way to…

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## [The coordinates of points in stl model after voxelization](https://discourse.slicer.org/t/the-coordinates-of-points-in-stl-model-after-voxelization/17515)

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**Author:** [@wangyunning](https://discourse.slicer.org/u/wangyunning)\
**Replies:** 1\
**Last updated:** [May 13, 2021, 5:02am UTC](https://discourse.slicer.org/t/the-coordinates-of-points-in-stl-model-after-voxelization/17515 "2021-05-13T05:02:13Z")

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Hello everyone, I am learning about computer-assisted spine surgery planning.in slicer, how to obtain the coordinates of points on the intersection line between the plane and the STL model. The positional relationship…

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## [Draw multiple tubes](https://discourse.slicer.org/t/draw-multiple-tubes/17507)

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**Author:** [@Luca](https://discourse.slicer.org/u/Luca)\
**Replies:** 1\
**Last updated:** [May 13, 2021, 4:56am UTC](https://discourse.slicer.org/t/draw-multiple-tubes/17507 "2021-05-13T04:56:53Z")

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Hi, I am using Slicer 4.11.20210226 on Windows 10. Is it possible to use the “Draw tube” tool to define more than one tube on the same mask? As far as I tested, once seeds have been placed, the “apply” button creates a…

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## [Get displacement vector fields within a segment from vector volume](https://discourse.slicer.org/t/get-displacement-vector-fields-within-a-segment-from-vector-volume/17511)

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**Author:** [@marianaslicer](https://discourse.slicer.org/u/marianaslicer)\
**Replies:** 1\
**Last updated:** [May 13, 2021, 4:52am UTC](https://discourse.slicer.org/t/get-displacement-vector-fields-within-a-segment-from-vector-volume/17511 "2021-05-13T04:52:03Z")

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Hi everyone, I used the Transforms module to convert a transform in a vector volume node because I’m interested in getting the motion of a ROI in the three directions. I think I was able to get the magnitude of the mot…

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## [adding render actors to model node](https://discourse.slicer.org/t/adding-render-actors-to-model-node/17589)

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**Author:** [@jimbo](https://discourse.slicer.org/u/jimbo)\
**Replies:** 2\
**Last updated:** [May 13, 2021, 4:41am UTC](https://discourse.slicer.org/t/adding-render-actors-to-model-node/17589 "2021-05-13T04:41:45Z")

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Dear all, I am new to slicer and I am having some issues creating model nodes. I have some code to render splines and surfaces which I render by creating mappers, actors and then adding the actors to render window. Is …

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## [DICOM Web module?](https://discourse.slicer.org/t/dicom-web-module/17596)

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**Author:** [@spycolyf](https://discourse.slicer.org/u/spycolyf)\
**Replies:** 3\
**Last updated:** [May 12, 2021, 6:05pm UTC](https://discourse.slicer.org/t/dicom-web-module/17596 "2021-05-12T18:05:42Z")

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My team is interested in needing an example of a DICOM WEB function. Does Slicer have a module that I can set up to illustrate DICOM WEB functionality? I hope that question makes sense as I don’t have experience with DI…

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## [Subject Level visibility button works only partially](https://discourse.slicer.org/t/subject-level-visibility-button-works-only-partially/17582)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 10\
**Last updated:** [May 12, 2021, 3:55pm UTC](https://discourse.slicer.org/t/subject-level-visibility-button-works-only-partially/17582 "2021-05-12T15:55:35Z")

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It appears that setting the visibility off in subject level does not hide volume in slice views. To replicate: Download and render MRHead. Create a single fiducial on MRHead 3D view. Center the slice views on fiducial c…

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## [Subtracting volumes from two different scans](https://discourse.slicer.org/t/subtracting-volumes-from-two-different-scans/17580)

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**Author:** [@Shrb\_Show](https://discourse.slicer.org/u/Shrb_Show)\
**Replies:** 3\
**Last updated:** [May 12, 2021, 1:52am UTC](https://discourse.slicer.org/t/subtracting-volumes-from-two-different-scans/17580 "2021-05-12T01:52:11Z")

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Hi, I am a beginner at 3D Slicers and would like some suggestion on how can I subtract volumes from two different CT scans. My goal is obtained the amount (Volume) of bone removed from the first image by comparing to it…

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## [Problem with importing files](https://discourse.slicer.org/t/problem-with-importing-files/16103)

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**Author:** [@Shrb\_Show](https://discourse.slicer.org/u/Shrb_Show)\
**Replies:** 3\
**Last updated:** [May 12, 2021, 1:16am UTC](https://discourse.slicer.org/t/problem-with-importing-files/16103 "2021-05-12T01:16:11Z")

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Hi, I am a beginner and I am trying to do the segmentation of femur. While using the software I am facing couple of problems. Whenever I try to import a new data I am getting distorted slices Whenever I try to …

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## [ Registration MR and CT images](https://discourse.slicer.org/t/registration-mr-and-ct-images/17066)

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**Author:** [@berileker](https://discourse.slicer.org/u/berileker)\
**Replies:** 3\
**Last updated:** [May 12, 2021, 12:07am UTC](https://discourse.slicer.org/t/registration-mr-and-ct-images/17066 "2021-05-12T00:07:24Z")

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Operating system:registraiton Slicer version:4.11.20200930 Expected behavior:Registration MRI and CT images without any trouble Actual behavior:Since the CT image I have is cut from the lower part of the noise,many st…

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## [Export volume to PLY point cloud?](https://discourse.slicer.org/t/export-volume-to-ply-point-cloud/4801)

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**Author:** [@Stephan.st](https://discourse.slicer.org/u/Stephan.st)\
**Replies:** 6\
**Last updated:** [May 11, 2021, 7:58pm UTC](https://discourse.slicer.org/t/export-volume-to-ply-point-cloud/4801 "2021-05-11T19:58:07Z")

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Hello everyone! This is my first post here on the forum. I am looking for a way to export data from Slicer as a 3D point cloud, preferable in PLY format. Is there a plugin / extension that can be used for this? Otherwis…

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## [Mac M1 support?](https://discourse.slicer.org/t/mac-m1-support/17545)

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**Author:** [@jdx-john](https://discourse.slicer.org/u/jdx-john)\
**Replies:** 1\
**Last updated:** [May 10, 2021, 9:37pm UTC](https://discourse.slicer.org/t/mac-m1-support/17545 "2021-05-10T21:37:15Z")

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Since I last was involved with Slicer, the new MacM1 platform has appeared (and 32bit Mac app support dropped in OS). How does Slicer support the dual Intel/Arm architecture? Did Slicer already have Arm support for Linux…

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## [How to export slices into system without loosing information](https://discourse.slicer.org/t/how-to-export-slices-into-system-without-loosing-information/17532)

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**Author:** [@pranaysingh](https://discourse.slicer.org/u/pranaysingh)\
**Replies:** 9\
**Last updated:** [May 11, 2021, 7:31pm UTC](https://discourse.slicer.org/t/how-to-export-slices-into-system-without-loosing-information/17532 "2021-05-11T19:31:56Z")

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Hi, I want to save the slices of dicom files into my computer. The slices are parallel to the plane of the volume. What I was doing until now was using Screen capture module and save all the slices of a view(say, Corona…

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## [Other brush shapes for paint effect](https://discourse.slicer.org/t/other-brush-shapes-for-paint-effect/12147)

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**Author:** [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Replies:** 10\
**Last updated:** [May 11, 2021, 7:02pm UTC](https://discourse.slicer.org/t/other-brush-shapes-for-paint-effect/12147 "2021-05-11T19:02:34Z")

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I am trying to measure trabecular bone properties from different regions of mouse proximal and distal femur epiphyses. Paint brush, with sphere brush enabled, works really well to draw a region of specific diameter. Then…

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## [LongitudinalPETCT](https://discourse.slicer.org/t/longitudinalpetct/14709)

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**Author:** [@Jakub\_Mitura](https://discourse.slicer.org/u/Jakub_Mitura)\
**Replies:** 5\
**Last updated:** [May 11, 2021, 10:12am UTC](https://discourse.slicer.org/t/longitudinalpetct/14709 "2021-05-11T10:12:45Z")

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System : Windows 10 Version of 3dSlicer 4.11.20200930 When I try to load PET/CT data I got information that I should install LongitudinalPETCT extension Hovewer when I query the Extension manager nothing shows up, wha…

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## [Create a Draw tube and move it](https://discourse.slicer.org/t/create-a-draw-tube-and-move-it/13856)

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**Author:** [@Hamid](https://discourse.slicer.org/u/Hamid)\
**Replies:** 23\
**Last updated:** [November 12, 2020, 1:03am UTC](https://discourse.slicer.org/t/create-a-draw-tube-and-move-it/13856 "2020-11-12T01:03:15Z")

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I created a tube using Draw tube, I want to move it to connect to another part.How can I move it?

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## [Metric Test Module Error!](https://discourse.slicer.org/t/metric-test-module-error/17279)

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**Author:** [@HodaGH](https://discourse.slicer.org/u/HodaGH)\
**Replies:** 3\
**Last updated:** [May 11, 2021, 4:36am UTC](https://discourse.slicer.org/t/metric-test-module-error/17279 "2021-05-11T04:36:53Z")

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Hi all, I’m using macOS Mojave. I get this following error when I try to get the MMI value while having a transform file. I tried other transform files too but I get the same error. And no error without a transform file…

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## [Virtual reconstruction of a brain](https://discourse.slicer.org/t/virtual-reconstruction-of-a-brain/17552)

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**Author:** [@Marta\_Fernandez](https://discourse.slicer.org/u/Marta_Fernandez)\
**Replies:** 1\
**Last updated:** [May 11, 2021, 4:05am UTC](https://discourse.slicer.org/t/virtual-reconstruction-of-a-brain/17552 "2021-05-11T04:05:12Z")

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Hi. I would like to create a brain from a skull. The problem is that the object is an STL and I cant create a volume from it. Someone know how can I create a virtual brain from it? Thanks in advice for the answer

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## [Single STL file](https://discourse.slicer.org/t/single-stl-file/17557)

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**Author:** [@Valentina\_Mejia\_Gall](https://discourse.slicer.org/u/Valentina_Mejia_Gall)\
**Replies:** 1\
**Last updated:** [May 11, 2021, 2:53am UTC](https://discourse.slicer.org/t/single-stl-file/17557 "2021-05-11T02:53:21Z")

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Hello, i have tree bones in stl format, i want to save this as one to later opened in solidworks or a CAD program (saved it as one file allows me to preserve the coordinate system and relative positions between the bones…

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## [Unable to load slicer extension website](https://discourse.slicer.org/t/unable-to-load-slicer-extension-website/17554)

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**Author:** [@banderies](https://discourse.slicer.org/u/banderies)\
**Replies:** 1\
**Last updated:** [May 10, 2021, 10:47pm UTC](https://discourse.slicer.org/t/unable-to-load-slicer-extension-website/17554 "2021-05-10T22:47:49Z")

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I have been trying to load the slicer extension website via the extension manager and manually via @KitwareMedical/slicer-extensions-webapp. Initially, it would only load on my Mac and not on my Linux installation, but n…

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## [ThresholdEffect in Editor](https://discourse.slicer.org/t/thresholdeffect-in-editor/17551)

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**Author:** [@flotrum](https://discourse.slicer.org/u/flotrum)\
**Replies:** 1\
**Last updated:** [May 10, 2021, 9:34pm UTC](https://discourse.slicer.org/t/thresholdeffect-in-editor/17551 "2021-05-10T21:34:07Z")

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Hi, I am using 3D Slicer to make models out of micro-CT png. files. Therefore I am using the Editor module. After I chose a certain threshold in the “ThresholdEffect”, I go to the “MakeModelEffect” and create the model…

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## [Access 3d renderer for multiple view](https://discourse.slicer.org/t/access-3d-renderer-for-multiple-view/17265)

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**Author:** [@pj-rit](https://discourse.slicer.org/u/pj-rit)\
**Replies:** 4\
**Last updated:** [May 10, 2021, 2:18pm UTC](https://discourse.slicer.org/t/access-3d-renderer-for-multiple-view/17265 "2021-05-10T14:18:47Z")

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Hi, I am wondering if it is possible to access the renderer that is associated with a view node. I am currently grabbing the view node using slicer.util.getFirstNodeByName('View1'), but I don’t know know how to grab the…

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## [How to display a line with projection in 2Dslicer by python?](https://discourse.slicer.org/t/how-to-display-a-line-with-projection-in-2dslicer-by-python/17518)

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**Author:** [@jumbojing](https://discourse.slicer.org/u/jumbojing)\
**Replies:** 2\
**Last updated:** [May 10, 2021, 2:02pm UTC](https://discourse.slicer.org/t/how-to-display-a-line-with-projection-in-2dslicer-by-python/17518 "2021-05-10T14:02:52Z")

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def p2pline(P0, P1, width=1,modelName="Line",color = "blue"): points = vtk.vtkPoints() points.SetNumberOfPoints(2) points.SetPoint(0, P0\[0\], P0\[1\], P0\[2\]) points.SetPoint(1, P1\[0\], P1\[1\], P1\[2\]) l…

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## [Lung airway diameter quantification](https://discourse.slicer.org/t/lung-airway-diameter-quantification/17524)

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**Author:** [@Harrison](https://discourse.slicer.org/u/Harrison)\
**Replies:** 1\
**Last updated:** [May 10, 2021, 4:46am UTC](https://discourse.slicer.org/t/lung-airway-diameter-quantification/17524 "2021-05-10T04:46:28Z")

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Operating system: Window10 Slicer version: 4.11 I am a newbie in 3D slicer. I would like to calculate the airway diameter in the lung at each generation. Is there a simple way to implement it? I see the chest imaging p…

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## [Export what is seen in the viewport as a PNG shot?](https://discourse.slicer.org/t/export-what-is-seen-in-the-viewport-as-a-png-shot/17528)

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**Author:** [@NoobForSlicer](https://discourse.slicer.org/u/NoobForSlicer)\
**Replies:** 2\
**Last updated:** [May 10, 2021, 4:05am UTC](https://discourse.slicer.org/t/export-what-is-seen-in-the-viewport-as-a-png-shot/17528 "2021-05-10T04:05:45Z")

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Is there a way to export one shot of what is seen in the viewport as a PNG image file? I know I could take a screenshot but it would be really great to have it losless and to have an ability to set the resolution or som…

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## [Failure to open saved scene](https://discourse.slicer.org/t/failure-to-open-saved-scene/17396)

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**Author:** [@arif](https://discourse.slicer.org/u/arif)\
**Replies:** 13\
**Last updated:** [May 9, 2021, 8:01pm UTC](https://discourse.slicer.org/t/failure-to-open-saved-scene/17396 "2021-05-09T20:01:11Z")

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Hello all ; When I try to load the slicer format of my saved work, I often get nothing or an error message. My saved work consists fusion images (MRI and PET images) and maybe that is the reason for that. Do you have an…

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## [Export segmentation as bitmap images](https://discourse.slicer.org/t/export-segmentation-as-bitmap-images/3442)

<div class="topic-metadata">

**Author:** [@slojanko](https://discourse.slicer.org/u/slojanko)\
**Replies:** 5\
**Last updated:** [May 9, 2021, 3:20pm UTC](https://discourse.slicer.org/t/export-segmentation-as-bitmap-images/3442 "2021-05-09T15:20:42Z")

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Hello, I’m in need of some assistance with exporting one segmentation to a sequence of bitmap (png) images so I can do some calculation on the success of automatic segmentation. Are there any plugins that go through the…

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## [Is there a way to constantly show lines on all viewports so that we know where each view is?](https://discourse.slicer.org/t/is-there-a-way-to-constantly-show-lines-on-all-viewports-so-that-we-know-where-each-view-is/17529)

<div class="topic-metadata">

**Author:** [@NoobForSlicer](https://discourse.slicer.org/u/NoobForSlicer)\
**Replies:** 1\
**Last updated:** [May 8, 2021, 3:53pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-constantly-show-lines-on-all-viewports-so-that-we-know-where-each-view-is/17529 "2021-05-08T15:53:49Z")

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In other words, I would like to know if there is a way to show lines where each view is on other viewports? For example on the horizontal viewport to show a line where a vertical one is?

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