# \#vmtk

**URL:** https://discourse.slicer.org/tag/vmtk/48.md

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

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## [How to extract 2D vessels quickly and accurately?](https://discourse.slicer.org/t/how-to-extract-2d-vessels-quickly-and-accurately/40039)

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**Author:** [@jsalas424](https://discourse.slicer.org/u/jsalas424)\
**Replies:** 4\
**Last updated:** [September 11, 2026, 11:53am UTC](https://discourse.slicer.org/t/how-to-extract-2d-vessels-quickly-and-accurately/40039 "2026-09-11T11:53:04Z")

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Hello, I’m trying to segment out the left anterior descending coronary artery from a contrast enhanced XR image. The goal is to calculate the surface area of the vessel, and then compare this longitudinally within patie…

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## [Slicer crashes on startup due to SlicerVMTK extension](https://discourse.slicer.org/t/slicer-crashes-on-startup-due-to-slicervmtk-extension/47660)

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**Author:** [@aabrown100-git](https://discourse.slicer.org/u/aabrown100-git)\
**Replies:** 6\
**Last updated:** [July 18, 2026, 3:35pm UTC](https://discourse.slicer.org/t/slicer-crashes-on-startup-due-to-slicervmtk-extension/47660 "2026-07-18T15:35:22Z")

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Issue: On Slicer 5.12.2, Slicer crashes on startup after restarting Slicer following installation of SlicerVMTK. The startup log shows module loading failures in SlicerVMTK due to unresolved dylib dependencies, including…

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## [Generate segmentation node (binary label map) from centerline](https://discourse.slicer.org/t/generate-segmentation-node-binary-label-map-from-centerline/26166)

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**Author:** [@RomanStriker](https://discourse.slicer.org/u/RomanStriker)\
**Replies:** 5\
**Last updated:** [February 16, 2026, 1:03am UTC](https://discourse.slicer.org/t/generate-segmentation-node-binary-label-map-from-centerline/26166 "2026-02-16T01:03:58Z")

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Hi, I want to obtain a label map corresponding to centerline generated by VMTK. I would also like to get a different label for voxels belonging to different branches. I have generated centerline tree for a vessel label…

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## [Curvature, torsion from VMTK](https://discourse.slicer.org/t/curvature-torsion-from-vmtk/45652)

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**Author:** [@kuoi](https://discourse.slicer.org/u/kuoi)\
**Replies:** 0\
**Last updated:** [January 1, 2026, 5:24pm UTC](https://discourse.slicer.org/t/curvature-torsion-from-vmtk/45652 "2026-01-01T17:24:12Z")

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Hello, I am using the Extract Centerline module. I obtained one centerline and one table containing a single line with a pair of curvature and torsion values. I noticed that curvature and torsion are reported in the exp…

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## [How to measure vessel diameter](https://discourse.slicer.org/t/how-to-measure-vessel-diameter/13713)

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**Author:** [@Hamid](https://discourse.slicer.org/u/Hamid)\
**Replies:** 6\
**Last updated:** [December 22, 2025, 12:37am UTC](https://discourse.slicer.org/t/how-to-measure-vessel-diameter/13713 "2025-12-22T00:37:44Z")

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I need to measure the diameters of vessels(Descending aorta and 3 vertebral arteries) in my segmented model.How can I do that?Do I need any Extension?

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## [Irregular patch areas using VMTK](https://discourse.slicer.org/t/irregular-patch-areas-using-vmtk/45343)

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**Author:** [@svankuijk](https://discourse.slicer.org/u/svankuijk)\
**Replies:** 0\
**Last updated:** [December 3, 2025, 9:05am UTC](https://discourse.slicer.org/t/irregular-patch-areas-using-vmtk/45343 "2025-12-03T09:05:55Z")

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Dear all, I’m experiencing some issues with surface patching in 3D Slicer (using VMTK) during the post-processing of my carotid steady-state CFD simulations. The CFD run itself appears correct; the WSS output is proper…

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## [how does vmtksurfaceprojection work](https://discourse.slicer.org/t/how-does-vmtksurfaceprojection-work/44629)

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**Author:** [@furiabuia](https://discourse.slicer.org/u/furiabuia)\
**Replies:** 0\
**Last updated:** [September 29, 2025, 11:48pm UTC](https://discourse.slicer.org/t/how-does-vmtksurfaceprojection-work/44629 "2025-09-29T23:48:02Z")

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Hi, I’m new to vmtk and I was trying to use vmtksurfaceprojection to project coordinates points of a centerline to another centerline. The problem is that what I obtain in output is a centerline with the same geometry an…

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## [Fail to instantiate module "vtkvmtk"](https://discourse.slicer.org/t/fail-to-instantiate-module-vtkvmtk/35681)

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**Author:** [@michaelli](https://discourse.slicer.org/u/michaelli)\
**Replies:** 1\
**Last updated:** [September 29, 2025, 2:29am UTC](https://discourse.slicer.org/t/fail-to-instantiate-module-vtkvmtk/35681 "2025-09-29T02:29:07Z")

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I have installed the extension SlicerVMTK and restarted slicer 3d. This also happened to v5.7.0, v5.6.0, and v5.4.0 on Windows 10. So I installed the laterest version, v5.7.0-2024-04-19. But the error is the same. I ca…

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## [Is branch splitting like VMTK tutorial possible in Slicer?](https://discourse.slicer.org/t/is-branch-splitting-like-vmtk-tutorial-possible-in-slicer/44273)

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**Author:** [@mikebind](https://discourse.slicer.org/u/mikebind)\
**Replies:** 2\
**Last updated:** [August 29, 2025, 10:21pm UTC](https://discourse.slicer.org/t/is-branch-splitting-like-vmtk-tutorial-possible-in-slicer/44273 "2025-08-29T22:21:30Z")

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I am interested in carrying out branch splitting exactly as shown in this tutorial: Branch Splitting | vmtk - the Vascular Modelling Toolkit I am familiar with using vmtk for single centerlines, and am now exploring it…

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## [VMTK generated centerline curves missing structure hierarchy](https://discourse.slicer.org/t/vmtk-generated-centerline-curves-missing-structure-hierarchy/36586)

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**Author:** [@RomanStriker](https://discourse.slicer.org/u/RomanStriker)\
**Replies:** 6\
**Last updated:** [April 29, 2025, 7:59am UTC](https://discourse.slicer.org/t/vmtk-generated-centerline-curves-missing-structure-hierarchy/36586 "2025-04-29T07:59:47Z")

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Hi, I am using the Extract Centerline module of VMTK extension to generate network and centerline curves for the network and centerline models. The problem is that the network curve generated is missing the hierarchical…

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## [Error after installing VMTK extension: "vtkvmtk module is not loaded"](https://discourse.slicer.org/t/error-after-installing-vmtk-extension-vtkvmtk-module-is-not-loaded/42008)

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**Author:** [@feiyu](https://discourse.slicer.org/u/feiyu)\
**Replies:** 9\
**Last updated:** [March 9, 2025, 3:54am UTC](https://discourse.slicer.org/t/error-after-installing-vmtk-extension-vtkvmtk-module-is-not-loaded/42008 "2025-03-09T03:54:20Z")

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I tried to use the VMTK extension for vessel segmentation, but I can’t find it in the Modules. However, I can see that the latest version of VMTK has been downloaded in the extension manager. Can anyone help me with this…

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## [VMTK Centerline Tree Model Implementation Problem](https://discourse.slicer.org/t/vmtk-centerline-tree-model-implementation-problem/41760)

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**Author:** [@yoonjh119](https://discourse.slicer.org/u/yoonjh119)\
**Replies:** 0\
**Last updated:** [February 18, 2025, 4:39pm UTC](https://discourse.slicer.org/t/vmtk-centerline-tree-model-implementation-problem/41760 "2025-02-18T16:39:04Z")

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Hello, I am implementing the centerline function of VMTK so that it can be executed with Python code. Recently, I have completed the implementation of the network model and am implementing the tree model. After loading t…

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## [Vmtk centerlines/network metrics](https://discourse.slicer.org/t/vmtk-centerlines-network-metrics/40362)

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**Author:** [@LB95](https://discourse.slicer.org/u/LB95)\
**Replies:** 0\
**Last updated:** [November 24, 2024, 11:59pm UTC](https://discourse.slicer.org/t/vmtk-centerlines-network-metrics/40362 "2024-11-24T23:59:17Z")

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Hi, I’ve been doing a lot of reading on these forums and managed to piece together a lot, however I’m still having some difficulty solving my problem. My aim is to extract the centerline of a vessel tree in order to com…

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## [What is the best way to segment renal arteries to an interlobar level?](https://discourse.slicer.org/t/what-is-the-best-way-to-segment-renal-arteries-to-an-interlobar-level/40209)

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**Author:** [@ntzvetkov](https://discourse.slicer.org/u/ntzvetkov)\
**Replies:** 7\
**Last updated:** [November 23, 2024, 7:47pm UTC](https://discourse.slicer.org/t/what-is-the-best-way-to-segment-renal-arteries-to-an-interlobar-level/40209 "2024-11-23T19:47:28Z")

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I’ve been struggling with the segmentation of the renal artery branches for so long. From what I have read VMTK would be a good tool to do a proper segmentation, but I just can’t figure out how to apply it. There is an m…

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## [Develop an extension for coronary tortuosity evaluation](https://discourse.slicer.org/t/develop-an-extension-for-coronary-tortuosity-evaluation/33135)

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**Author:** [@michelaf](https://discourse.slicer.org/u/michelaf)\
**Replies:** 3\
**Last updated:** [August 27, 2024, 10:11am UTC](https://discourse.slicer.org/t/develop-an-extension-for-coronary-tortuosity-evaluation/33135 "2024-08-27T10:11:12Z")

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Hi everyone, I am a first year PhD student in biomedical engineering. For my MSc thesis I worked with 3D Slicer to create an extension for an ongoing project at the local hospital. The aim of the project is to develop …

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## [Error while attempting to extract Network Properties](https://discourse.slicer.org/t/error-while-attempting-to-extract-network-properties/37755)

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**Author:** [@THartman](https://discourse.slicer.org/u/THartman)\
**Replies:** 2\
**Last updated:** [August 8, 2024, 10:15am UTC](https://discourse.slicer.org/t/error-while-attempting-to-extract-network-properties/37755 "2024-08-08T10:15:25Z")

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I’m working on batch processing several vessel networks to extract the network properties tables, but I am getting the following error on all of the vessels in my dataset. Does anyone have any information on what exactl…

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## [Exporting Curvature Data](https://discourse.slicer.org/t/exporting-curvature-data/23181)

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**Author:** [@heiko](https://discourse.slicer.org/u/heiko)\
**Replies:** 24\
**Last updated:** [August 6, 2024, 6:03am UTC](https://discourse.slicer.org/t/exporting-curvature-data/23181 "2024-08-06T06:03:47Z")

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Hello everyone, I am using the Slicer VMTK extension in order to extract centerlines from a vascular tree. In addition to radius, I would also like to have the curvature at every point of the centerline (like I would ge…

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## [How to set Segmentation for a .stl while BranchClipper in VMTK?](https://discourse.slicer.org/t/how-to-set-segmentation-for-a-stl-while-branchclipper-in-vmtk/36747)

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**Author:** [@gpu](https://discourse.slicer.org/u/gpu)\
**Replies:** 1\
**Last updated:** [July 1, 2024, 3:30pm UTC](https://discourse.slicer.org/t/how-to-set-segmentation-for-a-stl-while-branchclipper-in-vmtk/36747 "2024-07-01T15:30:24Z")

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how to set Segmentation for a .stl while BranchClipper in VMTK? load a .stl file into 3D Slicer; Extract Centerlines by VMTK; while Branch Clipper, it’s not able to set the Segmentation which seems must be set. Thanks…

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## [VMTK go to the endpoints when extract centerline](https://discourse.slicer.org/t/vmtk-go-to-the-endpoints-when-extract-centerline/35209)

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**Author:** [@Ethan\_Penn](https://discourse.slicer.org/u/Ethan_Penn)\
**Replies:** 4\
**Last updated:** [June 20, 2024, 4:07pm UTC](https://discourse.slicer.org/t/vmtk-go-to-the-endpoints-when-extract-centerline/35209 "2024-06-20T16:07:28Z")

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when I extract the centerline in slicer, it does not go all the way to the endpoints, just close, is there a way to make it so the centerline will go all the way to the endpoints?

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## [Avoid creating multiple module widget instances from a python script](https://discourse.slicer.org/t/avoid-creating-multiple-module-widget-instances-from-a-python-script/36717)

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**Author:** [@RomanStriker](https://discourse.slicer.org/u/RomanStriker)\
**Replies:** 1\
**Last updated:** [June 12, 2024, 10:55am UTC](https://discourse.slicer.org/t/avoid-creating-multiple-module-widget-instances-from-a-python-script/36717 "2024-06-12T10:55:08Z")

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Hi, I am trying to generate centerlines for a batch of segmentation masks. I use a python script that uses the VMTK Extract Centerline widget. The issue is that for every new segmentation, Slicer opens a new Extract Cen…

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## [Any tutorial about using VMTK in C++ project?and organize the result of BranchClipper as multi-branch tree?](https://discourse.slicer.org/t/any-tutorial-about-using-vmtk-in-c-project-and-organize-the-result-of-branchclipper-as-multi-branch-tree/36639)

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**Author:** [@gpu](https://discourse.slicer.org/u/gpu)\
**Replies:** 0\
**Last updated:** [June 7, 2024, 9:57am UTC](https://discourse.slicer.org/t/any-tutorial-about-using-vmtk-in-c-project-and-organize-the-result-of-branchclipper-as-multi-branch-tree/36639 "2024-06-07T09:57:45Z")

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any tutorial about using VMTK in C++ project? and organize the result of BranchClipper as multi-branch tree? Thanks!

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## [Vmtk surface clipping contribution](https://discourse.slicer.org/t/vmtk-surface-clipping-contribution/30456)

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**Author:** [@DavidM](https://discourse.slicer.org/u/DavidM)\
**Replies:** 16\
**Last updated:** [June 7, 2024, 9:01am UTC](https://discourse.slicer.org/t/vmtk-surface-clipping-contribution/30456 "2024-06-07T09:01:43Z")

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I have developed a vmtk module that truncates/clips a vessel at user specified markup points (see image). This is a task that is commonly required for CFD software. I am wondering whether there is interest in contributin…

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## [Seeking Advice on Multi-Color Branching for Vascular Models](https://discourse.slicer.org/t/seeking-advice-on-multi-color-branching-for-vascular-models/36292)

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**Author:** [@petit223](https://discourse.slicer.org/u/petit223)\
**Replies:** 6\
**Last updated:** [May 29, 2024, 2:13pm UTC](https://discourse.slicer.org/t/seeking-advice-on-multi-color-branching-for-vascular-models/36292 "2024-05-29T14:13:31Z")

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Hello everyone, I am currently working on a project where I aim to color different branches of a vascular model with distinct colors. I start by selecting a main vessel and use the first branching point as an anchor. Fr…

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## [Coronary artery centerline extraction using VMTK slicer extension](https://discourse.slicer.org/t/coronary-artery-centerline-extraction-using-vmtk-slicer-extension/36139)

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**Author:** [@Kavita\_C](https://discourse.slicer.org/u/Kavita_C)\
**Replies:** 1\
**Last updated:** [May 14, 2024, 11:19am UTC](https://discourse.slicer.org/t/coronary-artery-centerline-extraction-using-vmtk-slicer-extension/36139 "2024-05-14T11:19:20Z")

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I am trying to extract centerline using extract centerline from VMTK module. But I’m able to extract only one part of branch ,not other part of branch of coronary vessels. How do I extract both branches centerlines. Can …

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## [Application crashes when extracting centerline](https://discourse.slicer.org/t/application-crashes-when-extracting-centerline/34751)

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**Author:** [@Paula\_Feldman](https://discourse.slicer.org/u/Paula_Feldman)\
**Replies:** 2\
**Last updated:** [March 7, 2024, 12:33pm UTC](https://discourse.slicer.org/t/application-crashes-when-extracting-centerline/34751 "2024-03-07T12:33:09Z")

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Unfortunatelly the forum won´t allow me to upload the mesh. i´ve analyzed it and found no clue as to why it fails, with some meshes it works smoothly I´m using the latest slicer stable release

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## [Problem displaying 2 surfaces together in one window, in Python way](https://discourse.slicer.org/t/problem-displaying-2-surfaces-together-in-one-window-in-python-way/34159)

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**Author:** [@guozhi0302](https://discourse.slicer.org/u/guozhi0302)\
**Replies:** 1\
**Last updated:** [February 7, 2024, 1:53pm UTC](https://discourse.slicer.org/t/problem-displaying-2-surfaces-together-in-one-window-in-python-way/34159 "2024-02-07T13:53:20Z")

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The official tutorial Computing Centerlines has demonstrated displaying multiple surfaces (or centerlines) in one window with Pype commands. vmtksurfacereader -ifile foo.vtp --pipe vmtkcenterlines --pipe vmtkrenderer --…

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## [Centerline errors - help](https://discourse.slicer.org/t/centerline-errors-help/33945)

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**Author:** [@tahmidullah](https://discourse.slicer.org/u/tahmidullah)\
**Replies:** 3\
**Last updated:** [January 26, 2024, 2:46am UTC](https://discourse.slicer.org/t/centerline-errors-help/33945 "2024-01-26T02:46:32Z")

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Hi all, I am having some trouble deriving the centerline from my stl. I have attached some pictures of the settings and the issues with the centerline when using the vascular modeling toolkit extension. Thank you so muc…

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## [3D slicer crashes when using VMTK extension's extract centerline in Slicer-5.2](https://discourse.slicer.org/t/3d-slicer-crashes-when-using-vmtk-extensions-extract-centerline-in-slicer-5-2/24091)

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**Author:** [@gfurnari](https://discourse.slicer.org/u/gfurnari)\
**Replies:** 10\
**Last updated:** [January 23, 2024, 2:25pm UTC](https://discourse.slicer.org/t/3d-slicer-crashes-when-using-vmtk-extensions-extract-centerline-in-slicer-5-2/24091 "2024-01-23T14:25:37Z")

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Hi everyone, when i try to compute centerline model using extractcenterline module, both by code or manually, the software crashes everytime. I’m using 4.13.0 version for windows (i tried 5.1 version for macOS bu the pr…

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## [VMTK automatic centerline and export control points as XYZ coordinates](https://discourse.slicer.org/t/vmtk-automatic-centerline-and-export-control-points-as-xyz-coordinates/33841)

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**Author:** [@RD\_morph](https://discourse.slicer.org/u/RD_morph)\
**Replies:** 0\
**Last updated:** [January 17, 2024, 7:52pm UTC](https://discourse.slicer.org/t/vmtk-automatic-centerline-and-export-control-points-as-xyz-coordinates/33841 "2024-01-17T19:52:06Z")

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Operating system: Windows 10 Slicer version: 5.6.1 Expected behavior: Use the ExtractCenterline.py code to automatically generate centerlines for existing models and export XYZ control points of centerlines Actual beh…

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## [how to remove flow extensions from a model](https://discourse.slicer.org/t/how-to-remove-flow-extensions-from-a-model/32865)

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**Author:** [@federica.chieffallo](https://discourse.slicer.org/u/federica.chieffallo)\
**Replies:** 0\
**Last updated:** [November 16, 2023, 5:02pm UTC](https://discourse.slicer.org/t/how-to-remove-flow-extensions-from-a-model/32865 "2023-11-16T17:02:57Z")

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Hi! How can I remove flow extension from a model in vmtk? Thank you for your kind help

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