# How to make AI software to mapping cortical bone thickness

**URL:** <https://discourse.slicer.org/t/how-to-make-ai-software-to-mapping-cortical-bone-thickness/43183>\
**Category:** Support\
**Tags:** segmentation, quantitative\
**Created:** [June 1, 2025, 6:37pm UTC](https://discourse.slicer.org/t/how-to-make-ai-software-to-mapping-cortical-bone-thickness/43183 "2025-06-01T18:37:07Z")\
**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:** [June 2, 2025, 12:54am UTC](https://discourse.slicer.org/t/how-to-make-ai-software-to-mapping-cortical-bone-thickness/43183/2 "2025-06-02T00:54:10Z")

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To measure cortical bone thickness, first segment the cortical bone (not the spongy cancellous bone). You can then proceed with measuring the bone thickness with one of the methods described in this topic:

> [@How to analyze the thickness of the model](https://discourse.slicer.org/t/how-to-analyze-the-thickness-of-the-model/2735/2):
>
> “Thickness” is not a very well defined term for models (surface meshes), but for shell-like meshes it is probably not too difficult to estimate it robustly and accurately. Potential approaches: A. Extract medial surface and estimate thickness as 2x of distance from medial surface. There are various ways of computing these in Slicer. One possible workflow: Compute medial surface using Simple Filters module - BinaryThinningImageFilter. Compute distance map using Simple Filters module - Daniels…

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