# Segmenting 3D printed heartseg

**URL:** <https://discourse.slicer.org/t/segmenting-3d-printed-heartseg/31617>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [September 8, 2023, 9:25am UTC](https://discourse.slicer.org/t/segmenting-3d-printed-heartseg/31617 "2023-09-08T09:25:46Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [September 8, 2023, 1:17pm UTC](https://discourse.slicer.org/t/segmenting-3d-printed-heartseg/31617/2 "2023-09-08T13:17:53Z")

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TotalSegmentator segments real patient images, which look completely different than the scan of a 3D-printed object. In your 3D object scan, segmenting the “heart wall” is trivial, using thresholding. You can limit segmenting the ventricles inside the heart using [“Wrap Solidify” effect](https://discourse.slicer.org/t/fill-or-extract-cavities-in-segmentations-using-the-new-wrap-solidify-effect/11248/2) (provided by SurfaceWrapSolidify extension), then [splitting the ventricles](https://lassoan.github.io/SlicerSegmentationRecipes/Craniotomy/) using Scissors effect. Once you learned how to use the tools, the whole process should take just a couple of minutes.

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