[Ways to increase the information value of ultrasonic studies in the diagnosis of intraocular tumors].

The paper discusses possibilities to increase information value of ultrasound investigations in diagnostics of intraocular tumors by means of a developed informative system of acoustic diagnostics ISAD-2 on the basis of a microcomputer "Electronika-60" (OVK-2) and broad-band ultrasound piezo-transformer with a working frequency from 2 to 20 mHz. Examination of 50 patients (50 eyes) with suspected intraocular tumors resulted in enucleation of the eye ball in 45 patients (45 eyes). Comparison of ultrasound and histomorphologic investigations revealed a correlative connection between the structure of intraocular tumor and the texture of their radio-frequency echograms as well as with relative frequency dependence of ultrasound attenuation in it. The possibility of in vivo detection of the tumorous process influence on the eye ball sclera and extrabulbar invasion of the tumor is determined. Different data bases are created which consider questionnaire data of examined patients, ecologic situation, the factor of a genetic risk, results of ultrasound and histomorphologic investigations, etc. Amalgamation of data bases makes it possible to classify intraocular tumors by different informative signs and to identify them depending on their microstructure.