# Calculate thickness of thin muscle

**URL:** <https://discourse.slicer.org/t/calculate-thickness-of-thin-muscle/13444>\
**Category:** Support\
**Created:** [September 11, 2020, 5:42pm UTC](https://discourse.slicer.org/t/calculate-thickness-of-thin-muscle/13444 "2020-09-11T17:42:43Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![lmach](https://avatars.discourse-cdn.com/v4/letter/l/ecae2f/32.png) [@lmach](https://discourse.slicer.org/u/lmach)\
**Post date:** [September 14, 2020, 10:48am UTC](https://discourse.slicer.org/t/calculate-thickness-of-thin-muscle/13444/3 "2020-09-14T10:48:38Z")

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Thanks for your reply, and sorry for the unclearness. I tried your described workflow here:

> [@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…

And since I followed your method, I got similar results as in your example, except for the thin green line that your example has but not mine… I suppose that is the actual medial surface? If so, what does the colours red, green and blue illustrate?

I will look into your tips, thanks!

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