Image-guided surgical microscope with mounted minitracker

Caversaccio, M; Garcia-Giraldez, J; Gonzalez-Ballester, M; Marti, G (2007). Image-guided surgical microscope with mounted minitracker. Journal of laryngology and otology, 121(2), pp. 160-2. Cambridge: Cambridge University Press 10.1017/S0022215106003938

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A new image-guided microscope using augmented reality overlays has been developed. Unlike other systems, the novelty of our design consists in mounting a precise mini and low-cost tracker directly on the microscope to track the motion of the surgical tools and the patient. Correctly scaled cut-views of the pre-operative computed tomography (CT) stack can be displayed on the overlay, orthogonal to the optical view or even including the direction of a clinical tool. Moreover, the system can manage three-dimensional models for tumours or bone structures and allows interaction with them using virtual tools, showing trajectories and distances. The mean error of the overlay was 0.7 mm. Clinical accuracy has shown results of 1.1-1.8 mm.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ear, Nose and Throat Disorders (ENT)
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB [discontinued]

UniBE Contributor:

Caversaccio, Marco; Garcia, Jaime and Gonzalez Ballester, Miguel Angel






Cambridge University Press




Factscience Import

Date Deposited:

04 Oct 2013 14:46

Last Modified:

04 May 2014 23:13

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URI: (FactScience: 1176)

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