| Abstract: | Combined clinical and x-ray investigation of 100 patients operated on for pyloroduodenal ulcerative stenoses was conducted. Methods of polypositional and polyprojectional x-ray investigation including a double contrast study and a differentiated use of cholinolytic and cholinomimetic drugs were standardized. The x-ray classification of stenosis was improved on the basis of radiological and surgical correlations and quantitative analysis of indices characterizing a degree of stenosis compensation. Criteria for the determination of a degree of stenosis were worked out. |
