Efficiency of Radiographic Processing of Automatic Processor in Thanto and Bannangsta Hospital, Yala Province

Abstract

This research aimed to analyze and predict the chemical installation time of two contemporary automatic processor in Yala Province. The chemical installation time was divided into 3 periods (new, middle and old). Create the step of density on the films by sensitometer, and process them by automatic processors. Then measure density by densitometer. Compare the contrast, base plus fog, maximum density and minimum density. The results revealed that : the Automatic processor was in use over has higher density, contrast, base plus fog and Maximum density than the other, and The difference of the contrast between machine was statistically significant at the 0.05 level. The chemical installation time was influence in density and contrast statistically significant at the 0.05 level. Interestingly, That was not different between statistic and the control chart, But the prediction of the chemical installation time was not displayed by multiple linear regression, Because amount of film was used per day quite a few and the relationship between the independent variables and the dependent variable of the automatic processor number 1 and 2 were relatively few (R-square were 0.410 and 0.277 respectively). So for both automatic processors, Changing chemical film solution, the quality control graphs was sufficient to observe for monitoring the film processing system.