OBSERVATION OF THE LASER INDUCED FLUORESCENCE AT THE MUCOSA OF THE ALIMENTARY TRACT (FIRST REPORT)

ON THE METHODS OF TAKING A ENDOSCOPIC PHOTOGRAPH OF THE LASER INDUCED FLUORESCENCE

Abstract

On this study we can take endoscopically the clear picture of the Argon laser induced fluorescence at the cancerous lesion of the stomach, the colon and the rectum by the ordinary method of taking a photograph of the lesion irradiated by the laser beam which was guided through the optical quartz fiber inserted into the biopsy-channel of the fiberscope. We don't need to use the image intensifier. The laser power at the tip of the optical quartz fiber is about 1 watt enough to take the clear picture of the fluorescence.
The same spot inside of the lesion may bring out the different color, when the Argon laser induced fluorescence is guided through the different sharp cut filters. Therefore, if we use only one sharp cut filter, we may give a wrong interpretation to such fluorescence. Then we must use different sharp cut filters alternatively.