Computer-assisted intranasal sinus surgery using a non-invasive patient registration and referencing system

Abstract

Purpose: The objective of this study was to evaluate the clinical value and feasability of surgical telenavigation and teleassistance technology in the field of Craniomaxillofacial surgery.Materials and Methods: The technology is based on the principles of augmented reality environment technology and remote stereotactic visualization. A consultant surgeon in a remote location receives video, audio, and stereotactic navigation data from the operation site almost in real-time and, using a headmounted display, is emerged in the surgical augmented reality environment. By telepresence or teleconsultation, the composite images and superimposed graphics (instruments, target structures, landmarks, contours) can be seen and discussed in connected clinics with the possibility of interactive manipulation and assistance.Results: Interactive teleassistance was used in 27 cases of various types Craniomaxillofacial surgery. The principles of computer-aided telenavigation were applied successfully. Technical problems in 6 cases did not cause a breakdown of overall system performance.Conclusion: Teleconsultation with remote experts is a useful tool, although some shortcomings exist. The financial and personal effort involved is considerable.