COMPARISON OF THE CALCULATED AND TABULATED METHODS OF ABSORBED DOSE WITH VARIOUS RADIOGRAPHIC TECHNIQUES

As no mathematically - based study was conducted so far, we decided to conduct this study to mathematically compare the absorbed doses of radiation. Methods and Material: Seven radiology centers were selected in Gonbad, Golestan to include 140 patients (with confidence level of 95%) for 11 techniques of x-ray such as skull, shoulder, lang, upper and lower digestive tract, hand feet, back and neck. Required data were gathered by a questionnaire focusing on mAs, Kvp, FSD and other items. Findings of the study revealed a decrease in the absorbed dose of the body surface with various techniques without distortion of the film. ANOVA revealed no significant difference between the means. these findings are not adequate thus requiring a consideration of all factors involved in reduction of the absorbed dose if a mathematical model is to be suggested.