# Registration for CT data and stl data couldnt finish

**URL:** <https://discourse.slicer.org/t/registration-for-ct-data-and-stl-data-couldnt-finish/40451>\
**Category:** Support\
**Tags:** registration\
**Created:** [November 30, 2024, 5:28am UTC](https://discourse.slicer.org/t/registration-for-ct-data-and-stl-data-couldnt-finish/40451 "2024-11-30T05:28:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![JamesMengFly](https://avatars.discourse-cdn.com/v4/letter/j/b5ac83/32.png) [@JamesMengFly](https://discourse.slicer.org/u/JamesMengFly)\
**Post date:** [November 30, 2024, 5:28am UTC](https://discourse.slicer.org/t/registration-for-ct-data-and-stl-data-couldnt-finish/40451/1 "2024-11-30T05:28:44Z")

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When I use 3D Slicer to registration for CT data and .stl data，Fixed Image Volume is CT data ,why I couldnt choose .stl data for Moving Image Volume?