[Gastric evacuatory function in peptic ulcer studied using radionuclide research data]

The radionuclide method using labelled food was employed in 127 patients with gastric and duodenal ulcer to determine the gastric emptying function. The method is physiologic and safe. The character of disorders of gastric emptying rate was established in pyloroduodenal and mediogastric ulcers as well as the effect of gastric acid production on the rate of gastric emptying.