# 3D DICOM Thorax Registration

**URL:** https://discourse.itk.org/t/3d-dicom-thorax-registration/3953
**Category:** Beginner Questions
**Tags:** dicom, simpleitk, registration, python
**Created:** [March 11, 2021, 8:19pm UTC](https://discourse.itk.org/t/3d-dicom-thorax-registration/3953 "2021-03-11T20:19:07Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![michel.atieh](https://discourse.itk.org/letter_avatar_proxy/v4/letter/m/f07891/32.png) [@michel.atieh](https://discourse.itk.org/u/michel.atieh)
#### Post date: [March 11, 2021, 8:19pm UTC](https://discourse.itk.org/t/3d-dicom-thorax-registration/3953/1 "2021-03-11T20:19:07Z")

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Dear all,

I am completely new to the world of image registration.  
Can anyone please help me define the steps that I should take to register 3D CT images of 2 different patient? for instance to what type should I change the images, resampling etc

your help would be much appreciated.

Thanks in advance.

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### Author: ![zivy](https://discourse.itk.org/user_avatar/discourse.itk.org/zivy/32/1726_2.png) [@zivy](https://discourse.itk.org/u/zivy)
#### Post date: [March 11, 2021, 8:39pm UTC](https://discourse.itk.org/t/3d-dicom-thorax-registration/3953/2 "2021-03-11T20:39:56Z")

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Hello @michel.atieh,

If you want a quick solution with GUI based control then I would suggest using [3D slicer](https://www.slicer.org/), see [registration related documentation here](https://slicer.readthedocs.io/en/latest/user_guide/registration.html).

If you are looking to implement your own (e.g. you want to write a script that processes many images), then try SimpleITK. A general overview of the toolkit’s fundamental concepts is [available here](https://simpleitk.readthedocs.io/en/master/fundamentalConcepts.html) with registration overview [available here](https://simpleitk.readthedocs.io/en/master/registrationOverview.html). Registration examples are available both on the toolkit’s [read the docs pages](https://simpleitk.readthedocs.io/en/master/index.html) and in the [Jupyter notebook repository](https://github.com/InsightSoftwareConsortium/SimpleITK-Notebooks) (6\* series).

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### Author: ![michel.atieh](https://discourse.itk.org/letter_avatar_proxy/v4/letter/m/f07891/32.png) [@michel.atieh](https://discourse.itk.org/u/michel.atieh)
#### Post date: [March 11, 2021, 9:55pm UTC](https://discourse.itk.org/t/3d-dicom-thorax-registration/3953/3 "2021-03-11T21:55:13Z")

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ok thanks a lot for your help!