抄録
During the past one year, 110 operative and postoperative choledochcscopy by using improved choledochofiberscope were performed in 43 cases who underwent duct exploration. At the same time, selective cholangiogram obtained with insertion of a thin teflon tube selectively under visual control into desired portion of the biliary tract, has been employed as an adjunct to the conventional roentgenological examination. This selective cholangiography enabled to clarify abnormalities in the selected ducts, with complete filling of contrast material. In this paper, the improved choledochofiberscope MODEL IV which has been developed in our department was introduced and importance of selective cholangiography adjunctively to endoscopic examination was strongly emphasized to overcome pitfalls of conventional roentgenological examination.
