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PubMed · 16122598

Template-based registration for image-guided maxillofacial surgery.

Georg Eggers·Joachim Mühling·Rüdiger Marmulla
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Abstract

PURPOSE: Fiducial marker registration using bone screws is a proved and tested method for patient-to-image registration for image-guided surgery of the head. The use of intraoral fiducial markers mounted on a template for the maxillary dentition is a less invasive alternative and is in use for intraoral image-guided surgery. The aim of this study was to verify if this method is sufficiently accurate for extraoral use. MATERIALS AND METHODS: Registration was performed using 243 different configurations of fiducial markers mounted on a maxillary template. The accuracy of the identification of artificial skull-mounted targets located in surgically relevant locations was determined for each registration. RESULTS: Targeting accuracy was sufficient for image-guided surgery of the maxilla, the midface, the orbit, and the pterygopalatine fossa. In the regions of the calvarium, however, average target registration error was > or =1.5 mm. Average target registration error was >3 mm. CONCLUSION: Fiducial marker registration based on a maxillary template is a safe and non-invasive alternative to bone-mounted fiducial markers for image-guided surgery in the regions of orbit, face, maxilla, and pterygopalatine fossa.

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Bone ScrewsFacial BonesHumansImage Processing, Computer-AssistedMaxillaOral Surgical ProceduresOrbitPalateSphenoid BoneSplintsStereotaxic TechniquesSurgery, Computer-AssistedJournal Article

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BibTeXRIS

Georg Eggers, Joachim Mühling, Rüdiger Marmulla. 2005. Template-based registration for image-guided maxillofacial surgery.. https://doi.org/10.1016/j.joms.2005.05.312

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