Evaluation of the precision of navigation-assisted endoscopy according to the navigation tool setup and the type of endoscopes

Article Article scientifique Article Evaluation of the precision of navigation-assisted endoscopy according to the navigation tool setup and the type of endoscopes eng 2022-06-28 2022-09 author Chavaz Lara Marie 0000-0002-8253-465X Faculty of Medicine, University of Geneva, Geneva, Switzerland. 849945 Département de Pédiatrie, Gynécologie et Obstétrique (PETRI) author Davidovic Alexis Alioucha Faculty of Medicine, University of Geneva, Geneva, Switzerland. 851475 Structure enseignement (ENSI) author Meling Torstein 0000-0001-6595-0873 Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of Neurosurgery, Department of Clinical Neurosciences, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland. 914537 author Momjian Shahan Marc 0000-0002-3886-0159 Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of Neurosurgery, Department of Clinical Neurosciences, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland. 84022 Département des neurosciences cliniques (OTONO) author Schaller Karl Lothard Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of Neurosurgery, Department of Clinical Neurosciences, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland. 658606 Département des neurosciences cliniques (OTONO) author Bijlenga Philippe Alexandre Pierre 0000-0002-3586-2757 Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of Neurosurgery, Department of Clinical Neurosciences, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland. 104899 Département des neurosciences cliniques (OTONO) author Haemmerli Julien 0000-0001-5998-8541 Division of Neurosurgery, Department of Clinical Neurosciences, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland. Julien.haemmerli@hcuge.ch. 659636 2375-2383 10.1007/s00701-022-05276-w 35764694 0001-6268 PMC9427865 https://link.springer.com/article/10.1007/s00701-022-05276-w Object : Preoperative image-based neuronavigation-assisted endoscopy during intracranial procedures is gaining great interest. This study aimed to analyze the precision of navigation-assisted endoscopy according to the navigation setup, the type of optic and its working angulation. Methods : A custom-made box with four screws was referenced. The navigation-assisted endoscope was aligned on the screws (targets). The precision on the navigation screen was defined as the virtual distance-to-target between the tip of the endoscope and the center of the screws. Three modifiers were assessed: (1) the distance D between the box and the reference array (CLOSE 13 cm – MIDDLE 30 cm – FAR 53 cm), (2) the distance between the tip of the endoscope and the navigation array on the endoscope (close 5 cm – middle 10 cm – far 20 cm), (3) the working angulation of the endoscope (0°-endoscope and 30°-endoscope angled at 90° and 45° with the box). Results : The median precision was 1.3 mm (Q1: 1.1; Q3: 1.7) with the best setting CLOSE/close. The best setting in surgical condition (CLOSE/far) showed a distance-to-target of 2.3 mm (Q1: 1.9; Q3: 2.5). The distance D was correlated to the precision (Spearman rho = 0.82), but not the distance d (Spearman rho = 0.04). The type of optic and its angulation with the box were also correlated to the precision (Spearman rho = − 0.37). The best setting was the use of a 30°-endoscope angled at 45° (1.4 mm (Q1: 1.0; Q3: 1.9)). Conclusion : Navigated-assisted endoscopy is feasible and offers a good precision. The navigation setup should be optimized, reducing the risk of inadvertent perifocal damage. Endoscopy Navigation-assisted endoscopy Neuroendoscopy Neuronavigation Neurosurgery Dewey 616.8 61 Département des neurosciences cliniques 226 false 513 Groupe Schaller Karl Lothard (neurochirurgie) 851 Acta neurochirurgica 164 9 fd2cdd0a-6a06-495f-82ba-8917d82a3fc6 Article (Published version) Public Article_scientifique_from_unpaywall.pdf 1299363 application/pdf CC BY-4.0 3bdbce5636ed50591776d90b2c7079999cf0a4cf16f450661676bae06abe0857 openAccess Faculté de médecine / Section de médecine clinique / Département des neurosciences cliniques

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Evaluation of the precision of navigation-assisted endoscopy according to the navigation tool setup and the type of endoscopes	Acta neurochirurgica			2022	61	144

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