Purpose Surgical navigation systems rely on a monitor Results Results from the empirical user study show signiﬁ- placed in the operating room to relay information. Optimal cant beneﬁts for cognitive load, user preference, and general monitor placement can be challenging in crowded rooms, and usability for the instrument-mounted display, while achiev- it is often not possible to place the monitor directly beside ing the same level of performance in terms of time and the situs. The operator must split attention between the nav- accuracy compared to using a monitor. igation system and the situs. We present an approach for Conclusion We successfully demonstrate the feasibility of needle-based interventions to provide navigational feedback our approach and potential beneﬁts. With ongoing techno- directly on the instrument and close to the situs by mounting logical advancements, instrument-mounted displays might a small display onto the needle. complement standard monitor setups for surgical navigation Methods By mounting a small and lightweight smartwatch in order to lower cognitive demands and for improved usabil- display directly onto the instrument, we are able to provide ity of such systems. navigational guidance close to the situs and directly in the operator’s ﬁeld of view, thereby reducing the need
International Journal of Computer Assisted Radiology and Surgery – Springer Journals
Published: Feb 23, 2017
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