MP10-04 SURGEON ASSESSMENT OF A NOVEL MULTI-RESOLUTION FOVEATED LAPAROSCOPE

Abstract

You have accessJournal of UrologySurgical Technology & Simulation: Instrumentation & Technology I (MP10)1 Sep 2021MP10-04 SURGEON ASSESSMENT OF A NOVEL MULTI-RESOLUTION FOVEATED LAPAROSCOPE Mike Nguyen, Jamal Nhabani, Allan Hamilton, Sangyoon Lee, Jeremy Katz, and Hong Hua Mike NguyenMike Nguyen More articles by this author , Jamal NhabaniJamal Nhabani More articles by this author , Allan HamiltonAllan Hamilton More articles by this author , Sangyoon LeeSangyoon Lee More articles by this author , Jeremy KatzJeremy Katz More articles by this author , and Hong HuaHong Hua More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000001983.04AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: To improve safety in minimally invasive surgery, we developed a multi-resolution foveated laparoscope (MRFL) which can simultaneously obtain and display wide and zoomed in views in order to avoid surgical tunnel vision and improve situational awareness. We assessed surgeon objective task performance and subjective attitudes towards the MRFL for ex vivo box trainer tasks and in vivo porcine surgery. METHODS: The MRFL utilizes two sensors to simultaneously obtain a wide-angle view and obtain and pan a high-resolution magnified view. Options for displaying the two images including side by side view, full screen views, and 3 variations of overlaid images. A pedal changes views and controls retargeting of the zoomed view. 6 urologists and 2 general surgeons performed box trainer and porcine surgery tasks with both a standard laparoscope and the MRFL. Task time, use of display options, and subjective assessments were obtained. RESULTS: For box trainer tasks, task time was shorter for standard laparoscopy than MRFL for internal peg transfer tasks (28.5 vs 56.6 secs, p=0.0055) in one of two sessions but was not different for external peg transfer tasks (69.2 vs 77.2 secs, p=0.52 and 124.2 vs 127.5 secs, p=0.93). For porcine nephrectomy, laparoscopy surgical time was significantly shorter than MRFL (17.5 vs 33.3 min, p=0.049). For the simpler oophorectomy surgical task, time did not differ significantly. As a surgeon, participants were most likely to use side by side view (46.4%) followed by full screen overview or zoomed view (26.6%). Assistants predominately used the side-by-side view (80.1%). Subjectively, surgeons rated situational awareness, depth perception, and interference with other instruments as similar between the systems for the trainer session while the MRFL was rated as having less interference for the animal lab session (2 vs 6.3, p=0.0093). MRFL was rated as having lower image quality than laparoscopy in both the trainer (6.4 vs 8.4, p=0.012) and animal lab sessions (3.5 vs 9.2, p=0.0003). Participants rated having different MRFL views as being useful for different roles (8.1 out of a scale of 10) and being likely to use the MRFL for laparoscopic surgery (8.1) and robotic surgery (8.3). CONCLUSIONS: Ex vivo and in vivo surgeon assessments of the MRFL demonstrated its feasibility for performing complex surgery. Surgeons had favorable attitudes towards its functional features and expressed likelihood to use the device if it were available. Users utilized different view types based on different task needs. Poorer image quality of the prototype MRFL was associated with longer task times. Source of Funding: NIH RO1 EB18921 © 2021 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 206Issue Supplement 3September 2021Page: e169-e170 Advertisement Copyright & Permissions© 2021 by American Urological Association Education and Research, Inc.MetricsAuthor Information Mike Nguyen More articles by this author Jamal Nhabani More articles by this author Allan Hamilton More articles by this author Sangyoon Lee More articles by this author Jeremy Katz More articles by this author Hong Hua More articles by this author Expand All Advertisement Loading ...