We added a completely new module that makes vessel (or airway or any other tree structure) centerline extraction much faster, flexible, and robust. It can quickly extract a network, determine branch endpoints automatically, allows editing of endpoints, computing centerlines, branches, and quantitative metrics (radius, curvature, torsion, etc). The new “Extract Centerline” module is available in SlicerVMTK extension for latest Slicer-4.11 release (it replaces the old “Centerline Computation” module). Video demonstrating vessel segmentation, centerline extraction, centerline curve editing, curved planar reformatting (straightening), branch extraction and quantification: [New vessel branch extraction module for 3D Slicer] The video uses these modules: SlicerVMTK extension (for “Extract Centerline” module) SegmentEditorExtraEffects extension (for “Local threshold” Segment Editor effect) Sandbox extension (for “Curved Planar Reformat” module)

These should be doable. Can you describe with a bit more details and sketches or screenshots about what exactly you would like to show and measure? Create a new topic.

I followed this video step by step and got stuck at making the centerline. I was unable to select a surface input in the Extract Centerline module. I believe it has something to do with the endpoints and centerline curve shown at 1:02. Can anyone care to explain what step I’m missing? I’m using 3d Slicer 4.11.0-2020-06-27 on Windows 10 and I have MarkupsToModel, SegementEditorExtraEffects, and SlicerVMTK extentions installed. [greyed_endpoints.PNG] [no_endpoints.PNG] [installed_extentions]

I have been working on this module in the last couple of days. Please install the latest Slicer Preview Release (4.11.0-2020-06-30) and let me know if you run into any issues with this version.

I downloaded the 4.11.0-2020-07-04 preview release and now Extract Centerline is working as expected, thank you.

Dear Mr. Lasso, I would like to have tested the newest module with the newest 3D-Slicer version (4.11.0), unfortunately the program keeps crashing immediately after starting. I have reinstalled it several times and tested it on different computers (Windows 10). I hope you can help me. best regards

Yes, sorry, today’s build is corrupted, it’ll be fixed by tomorrow. See more information and workaround here: [image] Issues running latest preview on macOS/Windows 10 Support Sure, you can access previous releases by specifying a date or number of days to go back. See details here. Good news: I can reproduce the problem, so it will be fixed by tomorrow.

Thank you very much, I can now open the latest version of the 3D-Slicer (4.11.0), but I cannot load my CT-dataset with this version, although I do nothing else than with the stable version (4.10.2)

Use the DICOM module to import and then load the CT. If it does not work then post the details (how did you try to load the data, what error message is displayed, etc) in a new topic.

Excuse me, I have used this method to measure the vessel related morphology, and I feel it is very great. However, I have a question, does the radius measured here refer to the average radius of the vessel in this segment?

I had a quick look at the code and it seems the radius in the “Centerline properties” table is computed as the mean of the maximum inscribed sphere radii in the branch.

New module: Extract Centerline (in SlicerVMTK extension)

Support

lassoan (Andras Lasso) July 7, 2020, 7:15pm 10

Yes, sorry, today’s build is corrupted, it’ll be fixed by tomorrow. See more information and workaround here:

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New module: Extract Centerline (in SlicerVMTK extension)

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