写真膀胱鏡の使用経験

Abstract

Photocystoscopy is an important method for accurate recor d ing and thorough consideration on intravesical observation. More than th i rty years, urologists have tried to obtain good pictures in the urinary bladders and some of them have succeeded in it in recent years, although it is not so prevalent even at the present time. The authors tried it with an apparatus produced by TAKEI Medical Optical Co.. The apparatus was improved by one of the authors in order to take better c o lor pictures of larger size and 8 mm cinecolor pictures (Fig. 1, 2, 3 and 4). Exposures made by the apparatus are presented in Tab. 1 . Some pictures are presented in Fig. 5. Motion pictures are difficult to be pre s e nted in printed pictures. Projecting upon a screen (about 1.5m x1.2 m), fine details of the moving pictures can be clearly discerned. Color films used by the authors were always of day-light type, a n d no filter for color correction was used. But the tones of colors obtained are rather natural to the eyes which are accustomed to intravesical sightseeing under yellowish light of usual cystoscopes. The authors have confirmed that the urinary bladder is not injure d by the heat and light of the photocystoscope. The mer i t s of the improved apparatus are ; 1) of low cost, 2) very easy availability in routine use and 3) better pictures of larger size.