# Accuracy assessment of stl model

**URL:** <https://discourse.slicer.org/t/accuracy-assessment-of-stl-model/4688>\
**Category:** Support\
**Created:** [November 8, 2018, 6:13pm UTC](https://discourse.slicer.org/t/accuracy-assessment-of-stl-model/4688 "2018-11-08T18:13:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Doaa](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/doaa/32/2549_2.png) [@Doaa](https://discourse.slicer.org/u/Doaa)\
**Post date:** [November 8, 2018, 6:13pm UTC](https://discourse.slicer.org/t/accuracy-assessment-of-stl-model/4688/1 "2018-11-08T18:13:46Z")

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Hello  
I’m new user to 3D slicer .  
How can i know the accuracy of stl model from ct scan data in 3d slicer?