抄録
Using the navigation system in the sinus surgery was admitted by the health insurance in 2008. It was thought that the adjustment setting of use of the navigation system was necessary. After a basic policy concerning the navigation adjustment had been set, the navigation was used for 17 cases of 40 cases of operating on the sinus surgery for the period from April to August, 2008. It was thought that our standard was appropriate under the present situation.
