[Spectroscopic diagnosis of stomach diseases based on laser-induced fluorescence of endogenous porphyrins].

For higher efficacy of early gastric carcinoma diagnosis by endoscopy, the authors suggest a method of autofluorescent diagnostics. It is d=based on the property of endogenous porphyrins contained in the tumor to emit light under the effect of laser. The suggested method was used in examination of 54 patients. The experimental group was composed of 35 patients with gastric carcinoma, the control group was formed of 21 patients with benign diseases gastric ulcer, polyps, chronic gastritis). The sensitivity of the method was 94%, th specificity 90.5%. It is shown that the method of autofluorescent diagnostics may be applied in cases which are difficult for diagnosis.