# Is there a way to segment heart valves from a CTA scan using 3D Slicer

**URL:** <https://discourse.slicer.org/t/is-there-a-way-to-segment-heart-valves-from-a-cta-scan-using-3d-slicer/16121>\
**Category:** Support\
**Created:** [February 21, 2021, 6:51pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-segment-heart-valves-from-a-cta-scan-using-3d-slicer/16121 "2021-02-21T18:51:37Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![dayanjan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dayanjan/32/12889_2.png) [@dayanjan](https://discourse.slicer.org/u/dayanjan)\
**Post date:** [February 21, 2021, 6:51pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-segment-heart-valves-from-a-cta-scan-using-3d-slicer/16121/1 "2021-02-21T18:51:38Z")

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Hello All,

I’ve been tying to figure out a way to do this. Basically, I have a pretty high resolution CTA scan. I want to be able to segment out the heart valves. The only challenge is none of the 3 planes allow me to see a top down picture of any of the heart valves. I am guessing there is a way to rotate the planes so I can get the correct view and segment the heart valves from there? Does anyone know how to do this using CT scans?

Many thanks in advance!

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [February 21, 2021, 10:10pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-segment-heart-valves-from-a-cta-scan-using-3d-slicer/16121/2 "2021-02-21T22:10:03Z")

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You can use the Reformat widget from the slice controller or you can open the Reformat module (search for it with control-F).

[https://slicer.readthedocs.io/en/latest/user\_guide/user\_interface.html?highlight=reformat#slice-view](https://slicer.readthedocs.io/en/latest/user_guide/user_interface.html?highlight=reformat#slice-view)

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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:** [February 21, 2021, 10:42pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-segment-heart-valves-from-a-cta-scan-using-3d-slicer/16121/3 "2021-02-21T22:42:36Z")

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You can also use [Ctrl + Alt + Left-click-and-drag](https://slicer.readthedocs.io/en/latest/user_guide/user_interface.html#slice-views) to align your views with the valve axis (after you enabled [display of slice intersections](https://slicer.readthedocs.io/en/latest/user_guide/user_interface.html#view-cross-reference) using the crosshair toolbar).

Then you can rotate slice views using SlicerHeart extension’s Valve View module.

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**Author:** ![dayanjan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dayanjan/32/12889_2.png) [@dayanjan](https://discourse.slicer.org/u/dayanjan)\
**Post date:** [February 22, 2021, 1:38pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-segment-heart-valves-from-a-cta-scan-using-3d-slicer/16121/4 "2021-02-22T13:38:23Z")

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Thank you Steve! This is most helpful. I just tried it out and it helps a lot!

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**Author:** ![dayanjan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dayanjan/32/12889_2.png) [@dayanjan](https://discourse.slicer.org/u/dayanjan)\
**Post date:** [February 22, 2021, 1:39pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-segment-heart-valves-from-a-cta-scan-using-3d-slicer/16121/5 "2021-02-22T13:39:40Z")

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Many thanks Andras. This helps a lot! This software that you guys created is really amazing!