The paper deals with one approach to the objective assessment of an ultrasound examination, for which an application software suite using modern information technologies, mathematical methods, and artificial intelligence methods is proposed. A three-stage model of medical diagnostics is proposed and the concept of a predictor is introduced. The main aim of the study is to recognize closed asymptomatic contours in ultrasound images, to organize their monitoring. It is shown that a change in one of the properties of the predictor indicates the presence of possible dynamics in this area, which may be the onset of pathology.