Minimizing Hospital Losses in X-Ray Films Using Design of Experiments

Exposure of patients to excessive radiation increases an unnecessary risk of cancer. An X-ray film is considered a reject and is to be repeated if the contrast between the image (picture) of the organ and the film’s background is low. Applying a two stages approach of Design of Experiments (DOE), this paper considers the factors affecting the contrast of the X-ray film, sorts out the most influential factors and identifies the optimum settings for each factor. Furthermore, the contribution of each factor on the optimal contrast is statistically identified