# rib cartilage segmentation

**URL:** <https://discourse.slicer.org/t/rib-cartilage-segmentation/40252>\
**Category:** Support\
**Created:** [November 18, 2024, 6:16pm UTC](https://discourse.slicer.org/t/rib-cartilage-segmentation/40252 "2024-11-18T18:16:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Vanessa](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/vanessa/32/78559_2.png) [@Vanessa](https://discourse.slicer.org/u/Vanessa)\
**Post date:** [November 18, 2024, 6:16pm UTC](https://discourse.slicer.org/t/rib-cartilage-segmentation/40252/1 "2024-11-18T18:16:39Z")

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How can I do the segmentation of the rib cartilage and measure the volume of the 7th and 8th rib cartilage? I need the volume to measure the degree of calcification for a study.

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [November 18, 2024, 6:40pm UTC](https://discourse.slicer.org/t/rib-cartilage-segmentation/40252/2 "2024-11-18T18:40:02Z")

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If you are working from CT the TotalSegmentator module or Auto3DSeg module should give you a start.

e.g. this model: [Release 3D Slicer MONAI Auto3DSeg models · lassoan/SlicerMONAIAuto3DSeg · GitHub](https://github.com/lassoan/SlicerMONAIAuto3DSeg/releases/tag/ModelsTestResults#:~:text=Entire%20costal%20cartilage-,Ribs%20TS2%20(v2.0.0),-class_map_part_ribs%3A%20Trained%20on)

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<div class="post-metadata">

**Author:** ![Vanessa](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/vanessa/32/78559_2.png) [@Vanessa](https://discourse.slicer.org/u/Vanessa)\
**Post date:** [January 20, 2025, 8:39am UTC](https://discourse.slicer.org/t/rib-cartilage-segmentation/40252/3 "2025-01-20T08:39:25Z")

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Thank you, now I have the total volume. Do you have an idea how I get the calcification volume in between the cartilage? Because for my study I need the total volume of each rib cartilage and the volume of the calcification in the cartilage?