A F de Geer1,2, M J A van Alphen3, C L Zuur1,4, A J Loeve5, R L P van Veen1, M B Karakullukcu1. 1. Verwelius 3D Lab, Department of Head and Neck Surgery and Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands. 2. Educational Program Technical Medicine, Leiden University Medical Center, Delft University of Technology, Erasmus University Medical Center, Leiden, Delft, Rotterdam, The Netherlands. 3. Verwelius 3D Lab, Department of Head and Neck Surgery and Oncology, Netherlands Cancer Institute, Antoni van Leeuwenhoek, Amsterdam, The Netherlands. m.v.alphen@nki.nl. 4. Department of Otorhinolaryngology, Leiden University Medical Center, Leiden, The Netherlands. 5. Department of BioMechanical Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, The Netherlands.
Abstract
PURPOSE: To utilize navigated mandibular (reconstructive) surgery, accurate registration of the preoperative CT scan with the actual patient in the operating room (OR) is required. In this phantom study, the feasibility of a noninvasive hybrid registration method is assessed. This method consists of a point registration with anatomic landmarks for initialization and a surface registration using the bare mandibular bone surface for optimization. METHODS: Three mandible phantoms with reference notches on two osteotomy planes were 3D printed. An electromagnetic tracking system in combination with 3D Slicer software was used for navigation. Different configurations, i.e., different surface point areas and number and configuration of surface points, were tested with a dentate phantom (A) in a metal-free environment. To simulate the intraoperative environment and different anatomies, the registration procedure was also performed with an OR bed using the dentate phantom and two (partially) edentulous phantoms with atypical anatomy (B and C). The accuracy of the registration was calculated using the notches on the osteotomy planes and was expressed as the target registration error (TRE). TRE values of less than 2.0 mm were considered as clinically acceptable. RESULTS: In all experiments, the mean TRE was less than 2.0 mm. No differences were found using different surface point areas or number or configurations of surface points. Registration accuracy in the simulated intraoperative setting was-mean (SD)-0.96 (0.22), 0.93 (0.26), and 1.50 (0.28) mm for phantom A, phantom B, and phantom C. CONCLUSION: Hybrid registration is a noninvasive method that requires only a small area of the bare mandibular bone surface to obtain high accuracy in phantom setting. Future studies should test this method in clinical setting during actual surgery.
PURPOSE: To utilize navigated mandibular (reconstructive) surgery, accurate registration of the preoperative CT scan with the actual patient in the operating room (OR) is required. In this phantom study, the feasibility of a noninvasive hybrid registration method is assessed. This method consists of a point registration with anatomic landmarks for initialization and a surface registration using the bare mandibular bone surface for optimization. METHODS: Three mandible phantoms with reference notches on two osteotomy planes were 3D printed. An electromagnetic tracking system in combination with 3D Slicer software was used for navigation. Different configurations, i.e., different surface point areas and number and configuration of surface points, were tested with a dentate phantom (A) in a metal-free environment. To simulate the intraoperative environment and different anatomies, the registration procedure was also performed with an OR bed using the dentate phantom and two (partially) edentulous phantoms with atypical anatomy (B and C). The accuracy of the registration was calculated using the notches on the osteotomy planes and was expressed as the target registration error (TRE). TRE values of less than 2.0 mm were considered as clinically acceptable. RESULTS: In all experiments, the mean TRE was less than 2.0 mm. No differences were found using different surface point areas or number or configurations of surface points. Registration accuracy in the simulated intraoperative setting was-mean (SD)-0.96 (0.22), 0.93 (0.26), and 1.50 (0.28) mm for phantom A, phantom B, and phantom C. CONCLUSION: Hybrid registration is a noninvasive method that requires only a small area of the bare mandibular bone surface to obtain high accuracy in phantom setting. Future studies should test this method in clinical setting during actual surgery.
Authors: Kurt Schicho; Michael Figl; Rudolf Seemann; Markus Donat; Michael L Pretterklieber; Wolfgang Birkfellner; Astrid Reichwein; Felix Wanschitz; Franz Kainberger; Helmar Bergmann; Arne Wagner; Rolf Ewers Journal: J Neurosurg Date: 2007-04 Impact factor: 5.115
Authors: S G Brouwer de Koning; T P Ter Braak; F Geldof; R L P van Veen; M J A van Alphen; L H E Karssemakers; W H Schreuder; M B Karakullukcu Journal: Int J Oral Maxillofac Surg Date: 2020-07-15 Impact factor: 2.789
Authors: Jonathan M Bernstein; Michael J Daly; Harley Chan; Jimmy Qiu; David Goldstein; Nidal Muhanna; John R de Almeida; Jonathan C Irish Journal: PLoS One Date: 2017-03-01 Impact factor: 3.240
Authors: S G Brouwer de Koning; F Geldof; R L P van Veen; M J A van Alphen; L H E Karssemakers; J Nijkamp; W H Schreuder; T J M Ruers; M B Karakullukcu Journal: Sci Rep Date: 2021-02-25 Impact factor: 4.379