# Issue with segmentation on non-axial volume

**URL:** <https://discourse.slicer.org/t/issue-with-segmentation-on-non-axial-volume/1021>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [September 8, 2017, 1:18pm UTC](https://discourse.slicer.org/t/issue-with-segmentation-on-non-axial-volume/1021 "2017-09-08T13:18:45Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [September 8, 2017, 1:29pm UTC](https://discourse.slicer.org/t/issue-with-segmentation-on-non-axial-volume/1021/2 "2017-09-08T13:29:34Z")

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You have a non-axis-aligned volume. For slice-by-slice segmentation it may be easier to align slice views with the image plane as described in this topic:

> [@Display issue with RT structs and MR volume](https://discourse.slicer.org/t/display-issue-with-rt-structs-and-mr-volume/546/3):
>
> It seems that your MR volume axes are not aligned with patient anatomical axes. It’s not a problem, Slicer just shows slice viewers aligned with anatomical axes by default. Click “Rotate to volume plane” button in the slice view controller to align slice viewers to volume planes: [image] In the treatment planning software, did you draw contours with variable distance between them?

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