The method and semeiotics of noninvasive ultrasonic diagnosis of pyloroduodenal
stenosis are described. Seventy-six patients with
duodenal ulcer and 13 patients with
gastric ulcer were examined, and also 18 patients with gastric
carcinoma and 24 healthy individuals. The echographic picture of an empty stomach in compensated pyloroduodenal
stenosis did not differ from that in healthy persons, though study of the motor-evacuation activity of the stomach revealed intensified peristalsis and increased gastric half-evacuation period. In subcompensated pyloroduodenal
stenosis the stomach contained fluid and the period of half-evacuation of its contents was sharply increased. All patients with decompensated pyloroduodenal
stenosis had an increased volume of the stomach which contained much fluid and food remnants. Pyloric
spasm was differentiated by means of the
spasmolytics test. Patients with a marked periulcerous inflammatory infiltration must be kept under dynamic follow-up to evaluate the degree of the
stenosis. Taking into consideration the peculiarity of the echographic picture of the pyloric part, the neoplastic character of the pyloroduodenal
stenosis may be presumed with high precision.