# Elastix registration toolbox is now available in Slicer

**URL:** <https://discourse.slicer.org/t/elastix-registration-toolbox-is-now-available-in-slicer/165>\
**Category:** Support\
**Tags:** registration, feature\
**Created:** [April 21, 2017, 3:22pm UTC](https://discourse.slicer.org/t/elastix-registration-toolbox-is-now-available-in-slicer/165 "2017-04-21T15:22:52Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![brhoom](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/brhoom/32/1228_2.png) [@brhoom](https://discourse.slicer.org/u/brhoom)\
**Post date:** [April 27, 2017, 7:07pm UTC](https://discourse.slicer.org/t/elastix-registration-toolbox-is-now-available-in-slicer/165/4 "2017-04-27T19:07:35Z")

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Looks great. Elastix is one of the best registration tools. I can not find it in the extension manager, do I miss something?  
Quick question. did you integrate elastix within Slicer? or do you run elastix in the background? I think the first option is better as writing/reading the images from/to the hdd is time consuming.  
best!

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