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Tele-assessment of bandwidth limitation for remote robotics surgery

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Title: Tele-assessment of bandwidth limitation for remote robotics surgery
Authors: Ebihara, Yuma Browse this author →KAKEN DB
Oki, Eiji Browse this author
Hirano, Satoshi Browse this author →KAKEN DB
Takano, Hironobu Browse this author
Ota, Mitsuhiko Browse this author
Morohashi, Hajime Browse this author
Hakamada, Kenichi Browse this author
Urushidani, Shigeo Browse this author
Mori, Masaki Browse this author
Keywords: Robotic surgery
Remote robotics surgery
Packet loss
Communication delay
Issue Date: 1-Nov-2022
Publisher: Springer
Journal Title: Surgery today
Volume: 52
Issue: 11
Start Page: 1653
End Page: 1659
Publisher DOI: 10.1007/s00595-022-02497-5
Abstract: Purpose We investigated the communication bandwidth (CB) limitation for remote robotics surgery (RRS) using hinotori (TM) (Medicaroid, Kobe, Japan). Methods The operating rooms of the Hokkaido University Hospital and Kyushu University Hospital were connected using the Science Information NETwork (SINET). The minimum required CB for the RRS was verified by decreasing the CB from 500 to 100 Mbps. Ten surgeons were tested on a task (intracorporeal suturing) at different levels of video compression (VC) (VC1: 120 Mbps, VC2: 40 Mbps, VC3: 20 Mbps) with the minimum required CB, and assessed based on the task completion time, Global Evaluative Assessment of Robotic Skills (GEARS), and System and Piper Fatigue Scale-12 (PFS-12). Results Packet loss was observed at 3-7% and image degradation was observed at 145 Mbps CB. The task performance with VC1 was significantly worse than that with VC2 and VC3 according to the task completion time (VC1 vs VC2, P = 0.032; VC1 vs. VC3, P = 0.032), GEARS (VC1 vs VC2; P = 0.029, VC1 vs VC3; P = 0.031), and PFS-12 (VC1 vs. VC2; P = 0.032, VC1 vs. VC3; P = 0.032) with 145 Mbps. Conclusion Our findings provide evidence that RRS using hinotori (TM) requires a CB >= 150 Mbps. We also found that when there is insufficient CB, RRS can be continued by compressing the image.
Rights: This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at:
Type: article (author version)
Appears in Collections:北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 海老原 裕磨

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