# Accurate positioning of CT slices

**URL:** <https://discourse.slicer.org/t/accurate-positioning-of-ct-slices/14629>\
**Category:** Support\
**Created:** [November 16, 2020, 8:14am UTC](https://discourse.slicer.org/t/accurate-positioning-of-ct-slices/14629 "2020-11-16T08:14:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![1119](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/1119/32/8153_2.png) [@1119](https://discourse.slicer.org/u/1119)\
**Post date:** [November 16, 2020, 8:14am UTC](https://discourse.slicer.org/t/accurate-positioning-of-ct-slices/14629/1 "2020-11-16T08:14:39Z")

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For a given CT slice, can we arbitrarily rotate to a set angle? The show reformat widget can rotate the slices, but this kind of rotation cannot accurately locate the angle I need. , Is there any way to achieve this.  
For example, if I want these two slices to overlap, what should I do?

 ![1605514456(1)](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/1/e1daad37293e088c23dd3c2fe890cb4db5c934e7.jpeg)