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A non-invasive patient registration and reference system for interactive intraoperative localization in intranasal sinus surgery.

R Hauser·B Westermann·R Probst
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Abstract

A basic problem common to all systems for computer assisted surgery (CAS) is patient referencing, or the transfer of preoperative image data to the intraoperative pathology. The authors describe a highly precise CAS system with non-invasive referencing that can be used in ear, nose and throat (ENT) surgery of the paranasal sinuses. It is based on optical digitizing with several custom-made self-localizing surgical instruments. The accuracy of the system was tested in an experimental model using a plastic head. Measurements of repositioning the reference bow had a mean error of 0.81 mm +/- 0.31 mm. The system was evaluated clinically with 11 patients who received surgery for different pathologies of the paranasal sinuses. These trials met with a high rate of success and specific results are reported.

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BiopsyHumansIntraoperative CareParanasal Sinus DiseasesPhantoms, ImagingPosturePreoperative CareRadiographic Image EnhancementReoperationReproducibility of ResultsTherapy, Computer-AssistedTomography, X-Ray ComputedClinical TrialJournal ArticleResearch Support, Non-U.S. Gov't

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R Hauser, B Westermann, R Probst. 1997. A non-invasive patient registration and reference system for interactive intraoperative localization in intranasal sinus surgery.. https://doi.org/10.1243/0954411971534458

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