Article Text

Download PDFPDF

E-080 Impact of image latency and frame rate on simulated remote robotic-assisted neurovascular procedures
Free
  1. N Cancelliere1,2,
  2. A Consoli2,
  3. G Charbonnier2,
  4. T Baena Moura2,
  5. K Gaber2,
  6. E Liu1,2,
  7. V Mendes Pereira1,2
  1. 1Department of Neurosurgery, St. Michael’s Hospital, Toronto, ON, Canada
  2. 2Li Ka-shing Knowledge Institute, RADIS Lab, Unity Health Toronto, Toronto, ON, Canada

Abstract

Background and Aim In the past 5 years, our group and others have shown the feasibility and safety of robotic-assisted neurointerventional procedures. Remote robotics for treatment of acute ischemic stroke in remote communities holds great promise, however many challenges, such as connectivity parameters, will need to be evaluated in anticipation of making remote stroke treatment a reality. The goal of this study was to determine the maximum acceptable latency and minimum refreshment frame rate (RFR) for neuroendovascular procedures in a double-blinded simulated remote setting.

Methods Using an neuroendovascular robotic system and a virtual simulator, 7 operators performed 8 simulated aneurysm and stroke procedures both manually and with robotic-assistance, during which the interventional imaging was randomly altered with different latencies (between 100 - 800 ms) and RFR (between 10- 30 frames/s). Operators rated their experience performing the procedure for each latency and RFR using a modified Acceptability Score (AS) and dangerous uncontrolled maneuvers (DUMs) were evaluated by an independent observer.

Results Maximum acceptable latency was defined at 100 ms for manually performed procedures and at 250 ms for robotic-assisted procedures, whereas minimum acceptable RFR was defined at 15 fps. A total of 74 DUMs were recorded, most of which occurred at latencies ≥450ms and with RFRs of 10fps.

Conclusion Latency during simulated neurovascular interventions influences operator performance, judgement and confidence and maximum thresholds seem to be lower than those previously reported from remote cardiac interventions. Latency and RFR are important parameters to define and monitor during remote environments to maximize safety.

Disclosures N. Cancelliere: None. A. Consoli: None. G. Charbonnier: None. T. Baena Moura: None. K. Gaber: None. E. Liu: None. V. Mendes Pereira: None.

Statistics from Altmetric.com

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.