YAMASHITA JURI; MOCHIMARU MASAAKI; YAMAUCHI YASUSHI; FUKUI YUKIO; YOKOYAMA KAZUNORI
情報処理学会研究報告 1997/09
This paper presents a real-time, perspective displayed navigation system for endoscopic sinus surgery treating paranasal sinusitis. Endoscopic surgery is becoming more common because of its low invasiveness. Its problem with disorientation, however, is one of the toughest barriers for the novice and may even lead an expert to commit serious surgical errors, e.g., causing CSF leakage or blinding the patient. To prevent such complications and optimize training, our system navigates showing a single perspective view of the patient model and a virtual image of an endoscope with a viewing cone that indicates the viewing direction and visual field in real time through virtual reality. The system's three clipping planes automatically follow the endoscope and help keep the surgeon aware of the endoscope's actual position. An experiment evaluating the system's effectiveness showed its superiority over conventional navigation using a triplanar display.