AI Article Synopsis
- A non-invasive optical method using a tracked monocular endoscope is proposed for accurate patient registration in navigated surgery, addressing the limitations of existing invasive or time-consuming methods.
- This approach employs photogrammetric techniques to create a 3D reconstruction of the surgical scene, which helps align pre-operative data with the actual procedure.
- The system achieves high precision with a 0.1 mm reconstruction accuracy and 0.5 mm tracking accuracy, validated through experiments on cadaver models.
Article Abstract
Accurate patient registration and referencing is a key element in navigated surgery. Unfortunately all existing methods are either invasive or very time consuming. We propose a fully non-invasive optical approach using a tracked monocular endoscope to reconstruct the surgical scene in 3D using photogrammetric methods. The 3D reconstruction can then be used for matching the pre-operative data to the intra-operative scene. In order to cope with the near real-time requirements for referencing, we use a novel, efficient 3D point management method during 3D model reconstruction. The presented prototype system provides a reconstruction accuracy of 0.1 mm and a tracking accuracy of 0.5 mm on phantom data. The ability to cope with real data is demonstrated by cadaver experiments.
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| http://dx.doi.org/10.1007/11866565_100 | DOI Listing |
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