# Osteolytic lesions due to polyethylene wear

**URL:** <https://discourse.slicer.org/t/osteolytic-lesions-due-to-polyethylene-wear/36685>\
**Category:** Support\
**Created:** [June 10, 2024, 1:23pm UTC](https://discourse.slicer.org/t/osteolytic-lesions-due-to-polyethylene-wear/36685 "2024-06-10T13:23:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![darko\_talevski](https://avatars.discourse-cdn.com/v4/letter/d/a587f6/32.png) [@darko\_talevski](https://discourse.slicer.org/u/darko_talevski)\
**Post date:** [June 10, 2024, 1:23pm UTC](https://discourse.slicer.org/t/osteolytic-lesions-due-to-polyethylene-wear/36685/1 "2024-06-10T13:23:42Z")

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Dear Slicing community :),  
Does someone knows how to measure volume of osteolytic lesions due to polyethylene wear of THR, both on acetabular(pelvic) and femoral side?

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**Author:** ![LeidyMoraV](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/leidymorav/32/70144_2.png) [@LeidyMoraV](https://discourse.slicer.org/u/LeidyMoraV)\
**Post date:** [June 17, 2024, 2:35pm UTC](https://discourse.slicer.org/t/osteolytic-lesions-due-to-polyethylene-wear/36685/2 "2024-06-17T14:35:22Z")

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I guess you would need to have the diagnostics images (MRI, CT, etc), then segment the structures of interest and the use ‘Segment Comparision’ to compare both volumes.