# Combine Two Volumes From Two Scans Into A Complete Volume

**URL:** <https://discourse.slicer.org/t/combine-two-volumes-from-two-scans-into-a-complete-volume/10704>\
**Category:** Support\
**Created:** [March 16, 2020, 1:05pm UTC](https://discourse.slicer.org/t/combine-two-volumes-from-two-scans-into-a-complete-volume/10704 "2020-03-16T13:05:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Aryan\_Ghazipour](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/aryan_ghazipour/32/5985_2.png) [@Aryan\_Ghazipour](https://discourse.slicer.org/u/Aryan_Ghazipour)\
**Post date:** [March 16, 2020, 1:05pm UTC](https://discourse.slicer.org/t/combine-two-volumes-from-two-scans-into-a-complete-volume/10704/1 "2020-03-16T13:05:04Z")

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Hello,

I have a volume that was CT scanned two times. There are two DICOM series’, one for each half of the volume. I would like to display the complete volume, both halves, in Slicer. The goal is to align the two volumes and merge them together so that I can extract a particular slice from the complete volume.

Thanks in advance,  
Aryan

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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:** [March 16, 2020, 4:53pm UTC](https://discourse.slicer.org/t/combine-two-volumes-from-two-scans-into-a-complete-volume/10704/2 "2020-03-16T16:53:39Z")

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That should be doable. Basic steps would be to align them first with a transform, if they overlap then you should be able to do this automatically but first manually. Then you would use crop volume to add a margin to one half big enough for the whole thing and also to crop out overlap. Then you can use the add scalar volumes module to put them together.