[The application of image guided system in nasal endoscopic surgery].

Development of endoscopic sinonasal surgery (ESS) has made it possible to reach diseases located in difficult areas of nose, sinuses and skull base. Development of Image guided surgery (IGS) system have greatly revolutionized the field of ESS. IGS system has improved the precision and accuracy of surgery and thus reduced complication rates. IGS is extremely useful for anatomic location in risk sinus surgery: extensive inflammatory disease, sinus cavity revision, and frontal sinus, posterior ethmoid, sphenoid or nasosinal tumor surgery. This paper will emphasize on the mechanism of working, the indications and the advantages of using IGS system, as well as the development and future directions.