3-DIMENSIONAL NAVIGATION IN OTORHINOLARYNGOLOGICAL SURGERY WITH THE VIEWING WAND

We report our experiences with the ISG Viewing Wand intraoperative 3-d imensional navigation device in endonasal endoscopic procedures of the paranasal sinuses, anterior skull base, and petrous bone. In the last 12 months we have routinely used the wand in 90 patients for treatmen t of polyposis nasi, for biopsies and removal of tumors in the nasal c avity and at the frontal skull base, for endocrine ophthalmopathy, and in 1 case for cholesteatoma. We present our computed tomography, magn etic resonance imaging, and clinical protocols that allow a precise ro utine use of the Viewing Wand. In all cases, the system was extremely helpful for intraoperative localization and helped to optimize surgery .