Warning navigation system using real-time safe region monitoring for otologic surgery

Abstract

This system could assist surgeons in preserving the facial nerve and potentially contribute to enhanced patient safety in the surgery.

A Survey of auditory display in image-guided interventions

“…The results of the search yielded 13 articles [4,5,9,10, 12,17,22,34,35,37–40] that met the eligibility criteria. The eligible articles cover a wide range of interventional tasks, implemented auditory display methods, evaluation styles and environments, and findings.…”

“…Cho et al first support monitoring the “distance between the drill tip and important organs,” [9] and later [10] support monitoring the distance between the drill tip and facial nerve, as well as the distance between scala vestibuli, and scala tympani. Voormolen et al [35] support monitoring the distance between the drill tip and the facial nerve and sigmoid sinus.…”

“…Aiming to improve clinician interaction with visual displays and change view behavior was also cited in much of the literature [4,9,10,17,34,35,37,38]. Investigators commented on the necessity of clinicians to draw attention away from the situs in order to view the navigation screen.…”

“…This will result in the images being used only at intervals chosen by the surgeon.” Hansen et al [17] state that “the navigation system needs to be frequently consulted by surgeons, which leads to increased mental load and time pressure during surgery. The surgeon’s attention to the working area is interrupted by viewing the navigation system’s screen.” Cho et al [9] note that “when using a navigation system, the surgeons visual focus must move between the operating field and the navigation monitor to identify the position of the drill, causing a temporary interruption in the temporal bone dissection.” Wegner [38] cites as motivation for auditory display “users who cannot tolerate the encumbrance of graphical display hardware, and whose visual faculties have pre-existing obligations, such as addressing the task at hand.”…”

“…In the reviewed literature, alerts have been described by 6 of the 13 articles. For instrument tracking, the alert plays back when the distance of the tracked instrument to a certain structure has passed a predetermined distance threshold [9,10,34,35,39], or in the case of Kitagawa et al [22], when applied during telerobotic suture tying tension reaches a desired threshold.…”