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Improving vision for surgeons during laparoscopy: the Enhanced Laparoscopic Vision System ELViS

Abstract : Background: For many abdominal surgical interventions, laparotomy has gradually been replaced by laparoscopy, with numerous benefits for the patient in terms of post-operative recovery. However, during laparoscopy, the endoscope only provides a single viewpoint to the surgeon, leaving numerous blind-spots and opening the way to peri-operative adverse events. Alternative camera systems have been proposed, but many lack the requisite resolution/robustness for use during surgery or cannot provide real-time images. Here, we present the added value of the Enhanced Laparoscopic Vision System (ELViS) which overcomes these limitations and provides a broad view of the surgical field in addition to the usual high-resolution endoscope. Methods: Experienced laparoscopy surgeons performed several typical procedure steps on a live pig model. The time-to-completion for surgical exercises performed by conventional endoscopy and ELViSassisted surgery was measured. A debriefing interview following each operating session was conducted by an ergonomist, and a System Usability Scale (SUS) score was determined. Results: Proof of concept of ELVIS was achieved in an animal model with 7 expert surgeons without peroperative adverse events related to the surgical device. No differences were found in time-tocompletion. Mean SUS score was 74.7, classifying the usability of the ELViS as "good". During the debriefing interview, surgeons highlighted several situations where the ELViS provided a real advantage (such as during instrument insertion, exploration of the abdominal cavity or for orientation during close work), and also suggested avenues for improvement of the system. Conclusions: This first test of the ELViS prototype on a live animal model demonstrated its usability and provided promising and useful feedback for further development.
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https://www.hal.inserm.fr/inserm-03208307
Contributeur : Sandrine Voros <>
Soumis le : lundi 26 avril 2021 - 14:31:48
Dernière modification le : mardi 1 juin 2021 - 16:02:01

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Bertrand Trilling, Adrian Mancini, Gaëlle Fiard, Pierre Alain Barraud, Marion Decrouez, et al.. Improving vision for surgeons during laparoscopy: the Enhanced Laparoscopic Vision System ELViS. Surgical Endoscopy, Springer Verlag (Germany), 2021, 35 (5), pp.2403-2415. ⟨10.1007/s00464-021-08369-2⟩. ⟨inserm-03208307⟩

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