# Calculate surface area of a XCT Volume

**URL:** <https://discourse.slicer.org/t/calculate-surface-area-of-a-xct-volume/20797>\
**Category:** Support\
**Created:** [November 26, 2021, 9:17am UTC](https://discourse.slicer.org/t/calculate-surface-area-of-a-xct-volume/20797 "2021-11-26T09:17:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lolamartinalonso](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lolamartinalonso/32/12727_2.png) [@lolamartinalonso](https://discourse.slicer.org/u/lolamartinalonso)\
**Post date:** [November 26, 2021, 9:17am UTC](https://discourse.slicer.org/t/calculate-surface-area-of-a-xct-volume/20797/1 "2021-11-26T09:17:54Z")

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Operating system:64 bit  
Slicer version:4.11.20210226  
Expected behavior:  
Actual behavior:

I would want to calculate the surface area of an XCT Volume. Could anyone help me with some ideas of how to approach it?

I attach the screen with the volume.

Thanks

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/e/2e900652de4eb2436c7fc841bc5c219104ac18dc.jpeg)

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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:** [November 26, 2021, 2:07pm UTC](https://discourse.slicer.org/t/calculate-surface-area-of-a-xct-volume/20797/2 "2021-11-26T14:07:01Z")

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You can just segment it (probably just threshold) with the Segment Editor and then use the [SegmentStatistics](https://slicer.readthedocs.io/en/latest/user_guide/modules/segmentstatistics.html) module.