# Use of transforms to co-register echo and cardiac mri

**URL:** <https://discourse.slicer.org/t/use-of-transforms-to-co-register-echo-and-cardiac-mri/42701>\
**Category:** Support\
**Created:** [April 26, 2025, 8:11pm UTC](https://discourse.slicer.org/t/use-of-transforms-to-co-register-echo-and-cardiac-mri/42701 "2025-04-26T20:11:48Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![RGhosh](https://avatars.discourse-cdn.com/v4/letter/r/ce73a5/32.png) [@RGhosh](https://discourse.slicer.org/u/RGhosh)\
**Post date:** [April 26, 2025, 8:11pm UTC](https://discourse.slicer.org/t/use-of-transforms-to-co-register-echo-and-cardiac-mri/42701/1 "2025-04-26T20:11:48Z")

</div>

I have segmented several structures from 3D echo. I would like to export these structures into another Slicer file created from a cardiac MRI. When I copy and paste the part, or convert it to an STL and then import the part, it displays in the wrong place. How can I create a transform to display the echo segmentations in the MRI file?  
I am pasting 2 images below for reference:

Thank you

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/1/214c0b44d83bc94a7503a6d234e01310b7a4be7d.jpeg)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/0/70a5f4135e2cd421a67a3340448a4bc20c6a64ca.jpeg)