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International Journal of Computer Assisted Radiology and Surgery

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Open Access 01-09-2017 | Original Article

Instrument-mounted displays for reducing cognitive load during surgical navigation

Authors: Marc Herrlich, Parnian Tavakol, David Black, Dirk Wenig, Christian Rieder, Rainer Malaka, Ron Kikinis

Published in: International Journal of Computer Assisted Radiology and Surgery | Issue 9/2017

Abstract

Purpose

Surgical navigation systems rely on a monitor placed in the operating room to relay information. Optimal monitor placement can be challenging in crowded rooms, and it is often not possible to place the monitor directly beside the situs. The operator must split attention between the navigation system and the situs. We present an approach for needle-based interventions to provide navigational feedback directly on the instrument and close to the situs by mounting a small display onto the needle.

Methods

By mounting a small and lightweight smartwatch display directly onto the instrument, we are able to provide navigational guidance close to the situs and directly in the operator’s field of view, thereby reducing the need to switch the focus of view between the situs and the navigation system. We devise a specific variant of the established crosshair metaphor suitable for the very limited screen space. We conduct an empirical user study comparing our approach to using a monitor and a combination of both.

Results

Results from the empirical user study show significant benefits for cognitive load, user preference, and general usability for the instrument-mounted display, while achieving the same level of performance in terms of time and accuracy compared to using a monitor.

Conclusion

We successfully demonstrate the feasibility of our approach and potential benefits. With ongoing technological advancements, instrument-mounted displays might complement standard monitor setups for surgical navigation in order to lower cognitive demands and for improved usability of such systems.

CAScination AG, Switzerland.

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Title: Instrument-mounted displays for reducing cognitive load during surgical navigation
Authors: Marc Herrlich
Parnian Tavakol
David Black
Dirk Wenig
Christian Rieder
Rainer Malaka
Ron Kikinis
Publication date: 01-09-2017
Publisher: Springer International Publishing
Published in: International Journal of Computer Assisted Radiology and Surgery / Issue 9/2017
Print ISSN: 1861-6410
Electronic ISSN: 1861-6429
DOI: https://doi.org/10.1007/s11548-017-1540-6

At a glance: The STEP trials

Springer Medicine

Instrument-mounted displays for reducing cognitive load during surgical navigation

Abstract

Purpose

Methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusion

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