RESUMEN
We studied the development of retinal ischemia in rat eye after laser coagulation of blood vessels. Typical signs of ischemia manifested in the retina after 24 h: development of stable retinal edema, decrease in the b/a index (ratio of the electroretinogram b and a-wave amplitudes) to 1-2 units, pronounced disorders in the retinal microcirculation system, leading to ischemia of the inner layers of the retina. The proposed model is convenient for studies of the development of acute retinal ischemia, is easily realized, and reproduces some acute ischemic diseases of the retina.
Asunto(s)
Modelos Animales de Enfermedad , Isquemia/complicaciones , Enfermedades de la Retina/patología , Enfermedad Aguda , Animales , Electrorretinografía , Coagulación con Láser , Masculino , Ratas , Ratas Wistar , Retina , Enfermedades de la Retina/etiologíaRESUMEN
The results of testing of a software package for automated monitoring of the performance of X-ray diagnostic equipment are presented.
Asunto(s)
Radiografía/instrumentación , Radiografía/métodos , Programas Informáticos , Algoritmos , Diseño de Equipo , Dosis de RadiaciónRESUMEN
Protocols of engineering tests of X-ray diagnostic equipment are considered. Results of testing of an X-ray diagnostic device and corresponding testing software are described.