# How to apply displacement to new volume?

**URL:** <https://discourse.slicer.org/t/how-to-apply-displacement-to-new-volume/25445>\
**Category:** Support\
**Tags:** registration\
**Created:** [September 27, 2022, 12:21pm UTC](https://discourse.slicer.org/t/how-to-apply-displacement-to-new-volume/25445 "2022-09-27T12:21:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ryu](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ryu/32/16780_2.png) [@ryu](https://discourse.slicer.org/u/ryu)\
**Post date:** [September 27, 2022, 12:21pm UTC](https://discourse.slicer.org/t/how-to-apply-displacement-to-new-volume/25445/1 "2022-09-27T12:21:08Z")

</div>

Hello, 3D slicer experts!

I want to register images from two modalities (CT and CBCT) with 3D Slicer.

First, I apply the deformable register to adjust CT image (moving volume) to CBCT (fixed volume) using “Elastix extension”

 ![1](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/7/275158b70a492ab710cecb78624b82d7df3c106b.jpeg)

and I saved the computed displacement field named .

However, when I applied the displacement field to origin CT image using “Transforms module”, it takes the wrong place.

 ![그림2](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/b/7bb94e1b705ba04ffe16651a3192ee238101e9d8.jpeg)

Am I wrong? How can I apply displacement to a new volume?

Thanks a lot