STUDIES ON THE QUANTITATIVE EVALUATION OF THE FUNCTION OF STOMACH AND DUODENUM
1. STATISTICAL EVALUATION OF EIGHT ITEMS ON X-RAY FIGURES
As a basic study for quantitative estimation of the function of the stomach and the duodenum, the following eight items on upright postero-anterior roentgenograms of the stomach of five groups were measured to perform a series of statistical analysis of relationships between the items in each group and of comparisons among the five groups, and the results were studied from a clinical point of view : 1) width of the gastric angle section (Ba), of the gastric body (Be) and Ba/Bc ratio, 2) antrum lesser curvature length (L), greater curvature length(G) and G/L ratio, 3) middle zone thickness(MZ), 4) saw-toothed wave depth (Zhnlg), 5) antral peristalsis (AP), 6) antral spasm (AS), 7) duodenal loop length (L of D) and number of duodenal longitudinal folds (Lf). The results of the statistical analysis revealed that large differences from the control group were found in the items, G/L, MZ, AP and Zhnlg, suggesting that these represent characteristic values as an index of quantitative diagnosis.