# Can I register between 2d images and 3d model

**URL:** <https://discourse.itk.org/t/can-i-register-between-2d-images-and-3d-model/755>\
**Category:** Beginner Questions\
**Created:** [March 11, 2018, 1:58pm UTC](https://discourse.itk.org/t/can-i-register-between-2d-images-and-3d-model/755 "2018-03-11T13:58:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![timeanddoctor](https://discourse.itk.org/user_avatar/discourse.itk.org/timeanddoctor/32/1473_2.png) [@timeanddoctor](https://discourse.itk.org/u/timeanddoctor)\
**Post date:** [March 11, 2018, 1:58pm UTC](https://discourse.itk.org/t/can-i-register-between-2d-images-and-3d-model/755/1 "2018-03-11T13:58:14Z")

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In order to surgery navigation, can I register 2d images by intraoperative X-ray with the preoperative CT (DICOM).  
There is no O-army scanner in my hospital, and a preoperative CT of spinal is extremly significant.So, I try to get two 2d-images, such as Lateral position and Frontal position, from intraopterative X-ray for a patient. Some marks have been attached to the patient body before the surgery.  
Can I register between 2d images and 3d images?

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**Author:** ![dzenanz](https://discourse.itk.org/user_avatar/discourse.itk.org/dzenanz/32/1093_2.png) [@dzenanz](https://discourse.itk.org/u/dzenanz)\
**Post date:** [March 12, 2018, 1:52pm UTC](https://discourse.itk.org/t/can-i-register-between-2d-images-and-3d-model/755/2 "2018-03-12T13:52:49Z")

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You might find the links in [this](https://itk.org/pipermail/insight-users/2014-November/051300.html) message helpful. There is also a [module](https://itk.org/Doxygen/html/group__TwoProjectionRegistration.html) in ITK which probably does what you want.