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- W2895501436 abstract "Introduction: Augmented reality (AR) is ubiquitous in industries like entertainment, but it also has the potential to emerge into medicine. Especially during laparoscopic surgery, fusing virtual or preoperative information with the live laparoscopic video could improve intraoperative visualization. In this study, we evaluated technical feasibility of an AR navigation system (CAS-One AR, CAScination AG, Switzerland) for laparoscopic liver surgery. Methods: For navigation, a 3D laparoscope (Einstein Vision 3, Aesculap, Germany), a grasper and an overholt were equipped with optical markers and calibrated. Registration of the preoperative 3D model was performed using four surface landmarks. A fused view of the underlying anatomy (tumors, liver segments, hepatic/portal vein and hepatic artery), the instruments and the live video was shown on the 3D screen. Results: To date, the system was applied in one patient with three lesions selected for non-anatomical resection. Time required for laparoscope and instrument calibration was 1:39 minutes. In total, four registration attempts were required with gradually decreasing registration errors from 22.9 mm to 6.1 mm and an average duration of 4 minutes each. Conclusions: The AR system was mainly used during the initial phase of the surgery, where the 3D view of the underlying anatomy allowed fast localization of the tumors and was helpful for resection planning. We consider the additional time required for setup and registration to be acceptable for the first use in clinics. Based on our previous experience, we expect that the additional efforts and registration errors will decrease over time." @default.
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- W2895501436 date "2018-09-01" @default.
- W2895501436 modified "2023-09-29" @default.
- W2895501436 title "An augmented reality navigation system for laparoscopic liver surgery – First experiences" @default.
- W2895501436 doi "https://doi.org/10.1016/j.hpb.2018.06.216" @default.
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