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14th Trinational Meeting of the German Surgical Working Group for Minimally Invasive Surgery (CAMIC), the Austrian Working Group for Minimally Invasive Surgery (AMIC) and the Swiss Association for Laparoscopic and Thoracoscopic Surgery (SALTS) 14. Dreiländertreffen der Deutschen Chirurgischen Arbeitsgemeinschaft für Minimal Invasive Chirurgie (CAMIC), der Österreichischen Arbeitsgemeinschaft Minimal Invasive Chirurgie (AMIC) und der Schweizerischen Arbeitsgemeinschaft für Laparound Thorakoskopische Chirurgie (SALTC) February 18th–19th 2016, Heidelberg, Germany Organizing Committee Prof. Dr. Beat P. Müller-Stich Chirurgische Universitätsklinik Heidelberg Klinik für Allgemein-, Viszeralund Transplantationschirurgie Im Neuenheimer Feld 110 69120 Heidelberg Germany Prof. Dr. Kaja Ludwig Klinikum Südstadt Rostock Klinik für Allgemein-, Viszeral-, Thoraxund Gefäßchirurgie Südring 81 18059 Rostock Germany Congress Venue Kongresshaus Stadthalle Heidelberg Neckarstaden 24 69117 Heidelberg 3D.1 Mobile, real-time and point-of-care augmented reality: a pilot study in a phantom, animal and human model Hannes Kenngott, Anas Preukschas, Martin Wagner, Felix Nickel, Anna-Laura Wekerle, Nadine Bellemann, Boris Radeleff, HansUlrich Kauczor, Michael Müller, Hans-Peter Meinzer, Matthias Gondan, Christian Stock, Markus Büchler, Beat P. Müller-Stich Universitätsklinikum Heidelberg, Heidelberg, Germany; Deutsches Krebsforschungszentrum, Heidelberg, Germany Background: Medical imaging is essential for the diagnosis and therapy of patients. Imaging data is required at the patient’s bedside, but is usually accessed at desktop workstations. Advances in mobile technology makes real-time, point-of-care medical applications possible. Our aim was to evaluate such an augmented reality system for medical diagnosis and therapy with regard to feasibility and accuracy in a pilot study involving phantom, animal, and human models. Methods: After computed tomography imaging a tablet computer was positioned above the patient and a semi-transparent 3D-representation of structures of interest were superimposed on top of the patient’s image. Live camera images and the 3D-Volume were registered by fiducial markers. Feasibility and accuracy were evaluated in a static model using the open source Heidelberg Laparoscopy Phantom. The system was further analyzed in a porcine animal study. Finally the setup was tested with a human volunteer. Results: In the phantom model of the 1380 analyzed AR-positions 83.9 % could be successfully realized. The reprojection error was 2.83 ± 2.68 mm. 95 % of the measurements were below 6.71 mm. In the animal model 79.3 % of the 690 analyzed AR-positions could be successfully realized. In the animal study the reprojection error was 3.52 ± 3.00 mm. 95 % of the measurements were below 9.49 mm. The reprojection error was significantly lower in the phantom model compared to the porcine model (P < 0.001). At last augmented reality was successfully realized in clinical case. Conclusion: Mobile, real-time and point-of-care augmented reality systems for clinical purposes are feasible and accurate in a realistic experimental setting. kenni@gmx.de DOI 10.1007/s00423-015-1368-x Langenbecks Arch Surg (2016) 401:121–132

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14th Trinational Meeting of the German Surgical Working Group for Minimally Invasive Surgery (CAMIC), the Austrian Working Group for Minimally Invasive Surgery (AMIC) and the Swiss Association for Laparoscopic and Thoracoscopic Surgery (SALTS)