PURPOSE: Large volumes of information in the OR are ignored by surgeons when the amount outpaces human mental processing abilities. We developed an augmented reality (AR) system for dental implant surgery that acts as an automatic information filter, selectively displaying only relevant information. The purpose is to reduce information overflow and offer intuitive image guidance. The system was evaluated in a pig cadaver experiment. METHODS: Information filtering is implemented via rule-based situation interpretation with description logics. The interpretation is based on intraoperative distances measurement between anatomical structures and the dental drill with optical tracking. For AR, a head-mounted display is used, which was calibrated with a novel method based on SPAAM. To adapt to surgeon specific preferences, we offer two alternative display formats: one with static and another with contact analog AR. RESULTS: The system made the surgery easier and showed ergonomical benefits, as assessed by a questionnaire. All relevant phases were recognized reliably. The new calibration showed significant improvements, while the deviation of the realized implants was <2.5 mm. CONCLUSION: The system allowed the surgeon to fully concentrate on the surgery itself. It offered greater flexibility since the surgeon received all relevant information, but was free to deviate from it. Accuracy of the realized implants remains an open issue and part of future work.
PURPOSE: Large volumes of information in the OR are ignored by surgeons when the amount outpaces human mental processing abilities. We developed an augmented reality (AR) system for dental implant surgery that acts as an automatic information filter, selectively displaying only relevant information. The purpose is to reduce information overflow and offer intuitive image guidance. The system was evaluated in a pig cadaver experiment. METHODS: Information filtering is implemented via rule-based situation interpretation with description logics. The interpretation is based on intraoperative distances measurement between anatomical structures and the dental drill with optical tracking. For AR, a head-mounted display is used, which was calibrated with a novel method based on SPAAM. To adapt to surgeon specific preferences, we offer two alternative display formats: one with static and another with contact analog AR. RESULTS: The system made the surgery easier and showed ergonomical benefits, as assessed by a questionnaire. All relevant phases were recognized reliably. The new calibration showed significant improvements, while the deviation of the realized implants was <2.5 mm. CONCLUSION: The system allowed the surgeon to fully concentrate on the surgery itself. It offered greater flexibility since the surgeon received all relevant information, but was free to deviate from it. Accuracy of the realized implants remains an open issue and part of future work.
Authors: Felix Wanschitz; Wolfgang Birkfellner; Michael Figl; Sanda Patruta; Arne Wagner; Franz Watzinger; Kaan Yerit; Kurt Schicho; Rudolf Hanel; Franz Kainberger; Herwig Imhof; H Bergmann; Rolf Ewers Journal: Clin Oral Implants Res Date: 2002-12 Impact factor: 5.977
Authors: Darko Katić; Anna-Laura Wekerle; Jochen Görtler; Patrick Spengler; Sebastian Bodenstedt; Sebastian Röhl; Stefan Suwelack; Hannes Götz Kenngott; Martin Wagner; Beat Peter Müller-Stich; Rüdiger Dillmann; Stefanie Speidel Journal: Comput Med Imaging Graph Date: 2013-03-29 Impact factor: 4.790
Authors: Thomas Neumuth; Pierre Jannin; Juliane Schlomberg; Jürgen Meixensberger; Peter Wiedemann; Oliver Burgert Journal: Int J Comput Assist Radiol Surg Date: 2010-06-06 Impact factor: 2.924
Authors: K Kalaiarasan; Lavanya Prathap; M Ayyadurai; P Subhashini; T Tamilselvi; T Avudaiappan; I Infant Raj; Samson Alemayehu Mamo; Amine Mezni Journal: Evid Based Complement Alternat Med Date: 2022-05-11 Impact factor: 2.650