Operating system: windows Slicer version: 4.11 Expected behavior: Actual behavior: I need a perpendicular cross sectional area along centerline in vessel segmentation model. I can extract centerline using VMTK extension and get diameter along centerline using centerline metrics extension. Howe…

You can use “Cross-section analysis” module in recent versions of SlicerVMTK (you need to install Slicer at least to the latest stable release).

At a stenotic point, whether in curved or straight arterial part, the contrasted lumen’s surface area won’t be helpful to measure the vessel’s diameter. It will always be underestimated because, well, it is by definition decreased. With the Cross-Section Analysis module, you can place a slice view …

Unless I misunderstood : Class vtkVmtk/ComputationalGeometry/vtkvmtkPolyDataCenterlineSections.h computes Area Min Size Max Size Shape Closed for a centerline. This file is not included anywhere, hence it does not seem to be used. It has an interesting ::RequestData function, this is not publi…

vtkvmtkPolyDataCenterlineSection just gives a value for each centerline section (region between two bifurcations), so it is not very useful for analyzing a single vessel branch. [image] chir.set: It has an interesting ::RequestData function, this is not public however. RequestData is never p…

[image] lassoan: vtkvmtkPolyDataCenterlineSection just gives a value for each centerline section My bad is now clarified. [image] lassoan: to show “Diameter” in “More” section. I’ll update Cross-Section Analysis module and send a PR.

[image] lassoan: Most recent Slicer versions can now store and visualize scalar arrays associated with centerlines. I’ve now updated “Extract Centerline” module in SlicerVMTK to add radius array to the curve node I could not update Cross Section Analysis module to show diameters along a cente…

[image] chir.set: Radii are available at control points only, with arrayFromMarkupsControlPointData. They are not available at curve points, could not find a function like ‘arrayFromMarkupsCurvePointData’. Control points are fewer than curve points and reslicing is performed along curve points. …

I think I didn’t enable it by default for performance reasons. We can try enabling it by default and see if it becomes a problem or not. Otherwise I can add this option to the json storage as you suggest.

Probably the best would be to remove this variable and always compute the array. We can improve the performance later. Probably at some point we will need to implement a delayed update mechanism: whenever something is changed then hide measurements, scalar overlays, etc. and request a measurement u…

See PR here ENH: Always interpolate control point measurements in markups by cpinter · Pull Request #5392 · Slicer/Slicer · GitHub

perpendicular cross sectional area along centerline

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Perpendicular cross sectional area along centerline Support	2	374	January 16, 2021
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perpendicular cross sectional area along centerline

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