Comparing endoscopic systems on two simulated tasks.


Verwey, Willem B. and Stroomer, Simone and Lammens, Robin and Schulz, Sandra N. and Ehrenstein, Walter H. (2005) Comparing endoscopic systems on two simulated tasks. Ergonomics, 48 (3). pp. 270-287. ISSN 0014-0139

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Abstract:Endoscopes are slender instruments for performing medical procedures
through small incisions or natural body orifices. Three experiments examined
the performance effects of various endoscope systems when naive participants
executed tasks in a bladder-like environment. The systems involved a direct
endoscope, requiring the user to look through a lens at the outer part of the
endoscope, and a video endoscope that picks up the image via a camera
attached to the endoscope and displays it on a video monitor. The results
indicate that the participants performed the tasks better with video than with
direct endoscopes, and showed more transfer of practice with video
endoscopic surgery from a small to a large task environment than vice versa.
The optimal position of the monitor with video endoscopic surgery appeared
to involve a reasonable angle relative to the operating area (458 was used).
Performance was less at a greater angle (908), but also at a small angle (108).
It did not matter whether the monitor was located left, right or above the
operating area. As performance did not fully transfer to differently sized task
environments, endoscopists should initially train with task environments of
different, and especially small, sizes.
Item Type:Article
Copyright:© 2005 Taylor & Francis
Faculty of Behavioural, Management and Social sciences (BMS)
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